Changelog
What changed in this dataset, and why. Built from an append-only ledger of 1,968 events — not written by hand.
A benchmark that never appears to correct itself is not more accurate, only less observable. Every entry below is written once and never edited: the ledger is hash-chained, so an altered entry breaks every entry after it. That is the point — a changelog you can quietly rewrite is marketing.
- Values corrected
- 4
- Entries shown
- 184
- Ledger events
- 1,968
- most are pipeline bookkeeping
15 August 2026 11 entries
- Source went dead tva.com unreachable #1959
- Source went dead tva.com unreachable #1958
- Source went dead tva.com unreachable #1957
- Source went dead rolls-royce-smr.com unreachable #1947
- Source went dead opg.com unreachable #1939
- Source went dead newcleo.com unreachable #1932
- Source went dead newcleo.com unreachable #1931
- Source went dead moltexenergy.com unreachable #1927
- Source went dead electricfusionsystems.com unreachable #1901
- Source went dead electricfusionsystems.com unreachable #1900
- Source went dead aerospace.org unreachable #1885
14 August 2026 11 entries
- Source went dead tva.com unreachable #1835
- Source went dead tva.com unreachable #1834
- Source went dead rolls-royce-smr.com unreachable #1807
- Source went dead newcleo.com unreachable #1772
- Source went dead newcleo.com unreachable #1771
- Source went dead moltexenergy.com unreachable #1766
- Source went dead leonardodrs.com unreachable #1750
- Source went dead leonardodrs.com unreachable #1749
- Source went dead electricfusionsystems.com unreachable #1698
- Source went dead electricfusionsystems.com unreachable #1697
- Source went dead aerospace.org unreachable #1647
13 August 2026 1 entries
- Record retracted Oklo Aurora First Criticality illustrative seed placeholder rendering as a sourced milestone on a public page #1440
10 August 2026 1 entries
- Measurement changed IAEA survey figures reclassified as design parameters IAEA survey figures are design specifications, not achievements; separating them keeps rankings honest #1438
6 August 2026 50 entries
- Source went dead www-jt60.naka.qst.go.jp domain does not resolve (NXDOMAIN) #1436
- Measurement changed Joint European Torus — fusion-energy-yield 69 → 69.26 — operator rounding replaced by the precise published figure #1426
- Source went dead kfe.re.kr unreachable #1422
- Source went dead nifs.ac.jp unreachable #1420
- Source went dead pppl.gov unreachable #1417
- Record added Uranium Energy Corp added from curated-list #1148
- Record added Energy Fuels added from curated-list #1147
- Record added Denison Mines added from curated-list #1146
- Record added NexGen Energy added from curated-list #1145
- Record added TRISO-X added from curated-list #1144
- Record added BARC added from curated-list #1143
- Record added JAEA added from curated-list #1142
- Record added CEA added from curated-list #1141
- Record added National Nuclear Laboratory added from curated-list #1140
- Record added Canadian Nuclear Laboratories added from curated-list #1139
- Record added Los Alamos National Laboratory added from curated-list #1138
- Record added Oak Ridge National Laboratory added from curated-list #1137
- Record added Constellation Energy added from curated-list #1136
- Record added Bruce Power added from curated-list #1135
- Record added CEZ added from curated-list #1134
- Record added Toshiba added from curated-list #1133
- Record added CNEA added from curated-list #1132
- Record added NPCIL added from curated-list #1131
- Record added CGN added from curated-list #1130
- Record added KAERI added from curated-list #1129
- Record added Mitsubishi Heavy Industries added from curated-list #1128
- Record added Terra Innovatum added from curated-list #1127
- Record added CORE POWER added from curated-list #1126
- Record added Dual Fluid Energy added from curated-list #1125
- Record added ThorCon International added from curated-list #1124
- Record added Elysium Industries added from curated-list #1123
- Record added Antares Nuclear added from curated-list #1122
- Record added CNNC added from curated-list #1121
- Record added Rosatom added from curated-list #1120
- Record added Deutelio added from curated-list #1119
- Record added Pulsar Fusion added from curated-list #1118
- Record added Crossfield Fusion added from curated-list #1117
- Record added ENN Science and Technology Development added from curated-list #1116
- Record added Innoven Energy added from curated-list #1115
- Record added Electric Fusion Systems added from curated-list #1114
- Record added Pranos Fusion added from curated-list #1113
- Record added Anubal Fusion added from curated-list #1112
- Source went dead anl.gov unreachable #1099
- Source went dead inl.gov unreachable #1097
- Source went dead energoatom.com.ua unreachable #1093
- Source went dead prodigysmr.com domain does not resolve (NXDOMAIN) #1091
- Source went dead nuward.com unreachable #1075
- Source went dead cambridgeheavyindustries.com domain does not resolve (NXDOMAIN) #1071
- Source went dead genfsystems.com domain does not resolve (NXDOMAIN) #1059
- Source went dead laserfusionx.com domain does not resolve (NXDOMAIN) #1057
5 August 2026 53 entries
- Measurement changed National Ignition Facility — gain-wallplug 0.01 → 0.0077 — denominator resourced to the LLNL figure; prior value rested on secondary reporting #1053
- Measurement changed KSTAR — plasma-duration claimed → superseded — stale — a later result exists #1050
- Measurement changed Experimental Advanced Superconducting Tokamak — plasma-duration verified against a primary source #1046
- Measurement changed Joint European Torus — fusion-energy-yield verified against a primary source #1042
- Measurement changed National Ignition Facility — laser-energy verified against a primary source (abu-shawareb-2024-prl) #1038
- Measurement changed National Ignition Facility — fusion-energy-yield verified against a primary source (abu-shawareb-2024-prl) #1037
- Measurement changed National Ignition Facility — fusion-energy-yield 3.15 → 3.1 — press figure replaced by the peer-reviewed value #1036
- Measurement changed National Ignition Facility — gain-target verified against a primary source (abu-shawareb-2024-prl) #1035
- Candidate rejected Laser40.Com repeated capture failure #1024
- Source went dead laser40.com domain does not resolve (NXDOMAIN) #1023
- Candidate rejected Gepower.Com unreachable #1022
- Source changed inertial-fusion.co.uk content changed since capture; citing records requeued #1014
- Candidate rejected Laseradditivesolutions.Co.Uk unreachable #1004
- Candidate rejected Fusionenergyinsights.Com no extractable content #1000
- Candidate rejected Powerbigov.Us unreachable #998
- Source went dead powerbigov.us domain does not resolve (NXDOMAIN) #997
- Candidate rejected Plasmaphysics.De unreachable #992
- Source went dead plasmaphysics.de domain does not resolve (NXDOMAIN) #991
- Source went dead hexium.eu domain does not resolve (NXDOMAIN) #914
- Source went dead mitsubishicorp.com unreachable #908
- Source went dead tva.com unreachable #904
- Source went dead opg.com unreachable #903
- Source went dead aerospace.org unreachable #902
- Source went dead leonardodrs.com unreachable #893
- Source changed kinectrics.com content changed since capture; citing records requeued #811
- Source changed asgsuperconductors.com content changed since capture; citing records requeued #806
- Source went dead nextfusion.eu domain does not resolve (NXDOMAIN) #801
- Source changed fusionfuelcycles.com content changed since capture; citing records requeued #798
- Source changed oxfordsigma.com content changed since capture; citing records requeued #794
- Source changed fireflyfusion.com content changed since capture; citing records requeued #790
- Source changed maritimefusion.com content changed since capture; citing records requeued #787
- Source went dead nextfusion.eu domain does not resolve (NXDOMAIN) #771
- Candidate rejected Gat.Com unreachable #737
- Source went dead gat.com domain does not resolve (NXDOMAIN) #736
- Candidate rejected Mext.Go.Jp unreachable #735
- Source went dead mext.go.jp domain does not resolve (NXDOMAIN) #734
- Candidate rejected Ac.Cn unreachable #733
- Source went dead ac.cn domain does not resolve (NXDOMAIN) #732
- Source changed stellarator.energy content changed since capture; citing records requeued #729
- Candidate rejected Fusion Energy Base An information hub and directory for the fusion industry. Under our own rules an aggregator is a DISCOVERY source, never a listed entity — and listing a directory of the sector inside a directory of the sector is the circular-sourcing trap in structural form. #727
- Candidate rejected Cryotech Deicing Technology Manufactures acetate-based pavement deicers and glycol-based aircraft deicers. Nothing to do with nuclear or fusion — a false positive from the link graph, matched on the word "cryo". #726
- Record retracted Stellarator stellarator.energy IS Renaissance Fusion’s site — the domain the link graph surfaced after two of my own guesses failed. Its captured summary was the literal placeholder "Tagline". #725
- Record retracted Breakthroughenergy Same organisation as the record created for the CFS Series B. breakthroughenergy.org is its own site; the two were never linked because the deal record used a different id. #724
- Candidate rejected Ansaldoenergia.Com unreachable #663
- Candidate rejected Laser40.Com unreachable #657
- Source went dead laser40.com domain does not resolve (NXDOMAIN) #656
- Candidate rejected Gepower.Com unreachable #655
- Candidate rejected Laseradditivesolutions.Co.Uk unreachable #634
- Candidate rejected Fusionenergyinsights.Com no extractable content #630
- Candidate rejected Powerbigov.Us unreachable #628
- Source went dead powerbigov.us domain does not resolve (NXDOMAIN) #627
- Candidate rejected Plasmaphysics.De unreachable #626
- Source went dead plasmaphysics.de domain does not resolve (NXDOMAIN) #625
4 August 2026 57 entries
- Source went dead cnsc-ccsn.gc.ca unreachable #414
- Source went dead nrc.gov unreachable #413
- Source went dead nrc.gov unreachable #412
- Source went dead pppl.gov unreachable #405
- Source went dead zapenergy.com unreachable #404
- Source went dead tokamakenergy.com unreachable #402
- Record added Be4fusion replaces org:be4fusion-specialty-materials-business-consulting #391
- Record retracted Be4fusion Specialty Materials Business Consulting autonomous naming produced a tagline, not a name #390
- Record added STEP replaces org:step-fusion #388
- Record retracted Step Fusion autonomous naming produced a tagline, not a name #387
- Record added Quantum Leap Energy replaces org:qleapenergy #386
- Record retracted Qleapenergy autonomous naming produced a tagline, not a name #385
- Record added The Fusion Cluster replaces org:fusion-cluster #384
- Record retracted Fusion Cluster autonomous naming produced a tagline, not a name #383
- Record added Atomic Acquisitions replaces org:atomicacquisitions #382
- Record retracted Atomicacquisitions autonomous naming produced a tagline, not a name #381
- Record added STEP replaces org:step-fusion #380
- Record retracted Step Fusion autonomous naming produced a tagline, not a name #379
- Record added Quantum Leap Energy replaces org:qleapenergy #378
- Record retracted Qleapenergy autonomous naming produced a tagline, not a name #377
- Record added The Fusion Cluster replaces org:fusion-cluster #376
- Record retracted Fusion Cluster autonomous naming produced a tagline, not a name #375
- Record added replaces org:be4fusion-specialty-materials-business-consulting #374
- Record retracted Be4fusion Specialty Materials Business Consulting autonomous naming produced a tagline, not a name #373
- Record added Atomic Acquisitions replaces org:atomicacquisitions #372
- Record retracted Atomicacquisitions autonomous naming produced a tagline, not a name #371
- Candidate rejected Powerbigov.Us unreachable #356
- Source went dead powerbigov.us domain does not resolve (NXDOMAIN) #355
- Candidate rejected Plasmaphysics.De unreachable #354
- Source went dead plasmaphysics.de domain does not resolve (NXDOMAIN) #353
- Candidate rejected Fujikura.Com unreachable #352
- Source went dead fujikura.com unreachable #351
- Candidate rejected Focused Energy.World unreachable #346
- Source went dead focused-energy.world The operation was aborted due to timeout #345
- Candidate rejected Website Files.Com unreachable #340
- Source went dead website-files.com domain does not resolve (NXDOMAIN) #339
- Candidate rejected Iea.Org unreachable #335
- Source went dead iea.org unreachable #334
- Source went dead faradayfactory.com domain does not resolve (NXDOMAIN) #329
- Source went dead usnc.com domain does not resolve (NXDOMAIN) #327
- Source went dead rolls-royce-smr.com unreachable #285
- Archive restore tested Sources/Raw 68 files verified, 0 corrupt, 0 missing #254
- Candidate rejected Atomicacquisitions.Com unreachable #249
- Source went dead atomicacquisitions.com fetch failed #248
- Candidate rejected Ansaldoenergia.Com unreachable #247
- Source went dead ansaldoenergia.com fetch failed #246
- Candidate rejected Powerbigov.Us unreachable #223
- Source went dead powerbigov.us fetch failed #222
- Candidate rejected Plasmaphysics.De unreachable #221
- Source went dead plasmaphysics.de fetch failed #220
- Source went dead rolls-royce-smr.com unreachable #112
- Source went dead naarea.fr fetch failed #110
- Source went dead astralsystems.co.uk fetch failed #96
- Source went dead gaussfusion.com fetch failed #89
- Source went dead stellarator.energy The operation was aborted due to timeout #88
- Source went dead faraday.co.jp fetch failed #19
- Source went dead ukaea.uk fetch failed #10
Pipeline events — captures, fetches, hash checks — are recorded in the ledger but not shown here; they number in the thousands and say nothing a reader needs. What is shown is every change to a value, every retraction, every source that died or drifted, and every candidate we declined to list.