contrib, kernel: fixed seeds, chainparams, headerssync params, and assumeutxo updates pre-32.0 #36196

pull achow101 wants to merge 7 commits into bitcoin:master from achow101:32-params-seeds changing 8 files +3954 −3873
  1. achow101 commented at 6:03 AM on September 9, 2026: member

    All the updates per the release process, except asmap.

    Assumeutxo snapshots are available at https://achow101.com/files/utxo-snapshots/

  2. contrib: Update makeseeds for 30.3 and 31.x 6385aa1df8
  3. contrib: Update fixed seeds fcfc1df041
  4. DrahtBot commented at 6:03 AM on September 9, 2026: contributor

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    For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/36196.

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  5. achow101 commented at 6:27 AM on September 9, 2026: member

    The asmap benchmark thinks that the address 3fff::1 belongs to AS16509. Not sure if the bug is in the asmap file or our parser.

    Edit:

    Hmm

    ::/2 AS16509

    I think it's the asmap file.

  6. sedited commented at 6:43 AM on September 9, 2026: contributor

    The last asmap generation was quite short notice, though a score of 10/14 reproductions is also not terrible. Might a backported run be warranted?

    And CC @fjahr and @jurraca for the CI problem.

  7. kernel: update assumed blockchain and chainstate sizes 67726a63a4
  8. kernel: update defaultAssumeValid and minimumChainWork a25511dfbc
  9. kernel: update chainTxData 42d93d40de
  10. kernel: Update headerssync params a2e1f48fd3
  11. kernel: add recent assumeutxo snapshot 07b0183091
  12. achow101 force-pushed on Sep 9, 2026
  13. DrahtBot added the label CI failed on Sep 9, 2026
  14. achow101 commented at 6:44 AM on September 9, 2026: member

    Dropped the asmap update. I believe this is just an encoding issue where asmap-tool is not accounting for prefixes that are not supposed to be reachable. All asmaps more recent than the current embedding contain the problematic mapping.

  15. achow101 renamed this:
    contrib, kernel: fixed seeds, asmap, chainparams, headerssync params, and assumeutxo updates pre-32.0
    contrib, kernel: fixed seeds, chainparams, headerssync params, and assumeutxo updates pre-32.0
    on Sep 9, 2026
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