1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14b93a255dba04306c7ae0109251b6eb8fa1b7429f097cdea1d1d3ae1559a0b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05e00fa-5af6-4c33-bfff-ec09e1b3eb62.json and https://artists.proofprofile.net/proofs/artist/d05e00fa-5af6-4c33-bfff-ec09e1b3eb62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24edbeb5d30942fd20f9647a5689e3b9d627de6e9480de30d4a88d4e79ef2e45. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPM461400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea6e8b816cdf665d6fc5dca3f53f4b3a345509636bc7dd658401606b7f2ef57. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPM461400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d12297b48192b014522f2fd121b2c1d30a8bd252f3c276f4b74475f80f535b0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS601400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfb10d058f6fbcef5eb57f5ad8ae69e6fe19ce305d656a2185377b1e2993ae3. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS601400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa42829fe088989f7bd4e2b094fc3ac9f0d99c91149d10dc6da90a53476c9a4. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:31:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS601400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4e8206a2187e6a99b97bfa250271554d2068c737f94b9f5514d81b397f69ed. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS601400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2782b3c450fb7425093bd896afe890844b07aed1b178f7ef131ccf98ae034f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS601400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb531bf37097e755d4092a06bb7656d79717c9893e42d614e953c604275591d79. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01600450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b068ddf7fcd194462248a4f97a35d8e1eb7c8303d070b7b46fc5929abaf344. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01600470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb968550ec7bf32e5806a93348137f8d63516a7faa6d39d5d338368eef037442. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c312e66152b6b13eb064126669bdf8cf683f2abca6b64fd1166f7eadebf3577. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01600510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497fe049919e792ea10645659ac925c545172b2c46f3131b5747b6dbd11b7c9a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01601660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79414588857dbf12481b4e408c3ad77a2fc42eaf5946d5252266ea0578b99b48. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01702760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ebd9bb85e9aee71509da86e721e797695d5fb3fe2c6ec9abc0f66291c75fb1. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01705970.
HONKI DANCE TIME_fuckin' so tired - Zepp DiverCity TOKYO_2017.01.27
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e5a1082be4c4689739b668dc034b229cb950f1f26ba0c12645ce5b4391ad11. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:57:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01720020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e732d7e1d20ec5b295f883768aa9cf195c0a0c8fdf8c9077c3f663488226bcf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01730550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad7538411f95393b2ecee1a3acbd78d71267d60e77b15c20ef0b4ad42ab3a18. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01730560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d7acc195aa92d9be9ea693fd98156aedb14b8eee24621c0b184cb71a4f53d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01634780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56163c2b1351dcff00760c07e71d5b2bfc188232f39d95cdaa4c1d171295280b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:00:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01730620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf6f02ef59bf7339a53a1ff3a637586d3bc17fcfe0fa8a9b38998111598487a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01634790.
Kotteri ! intelli ! One Man Show ! (2018 Live at STUDIO COAST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d33562e600ffc09d7d0ec1cbf4ce30b6c506dea742e41dc80059eddcdaf686c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01901512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d22c95dabcaff1f0a6105a7edc565c634ed0844304b506ad2d85e087a0add4c. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01901515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633d752c4f6ece72e7d90c82ca87f75b150ba629eeb96a944d76726d71f81ba. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01901455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46a17874ec87ea4d86ab09cfd0da224dea539da5bfc3f5bc4a5b8d4d1126256. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc459992e791f6f67c63f2b8060031870933d66ab9bca63df77ad77ddaf7419. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02002878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30324cc594d3a406922e93b22a17f6c8d3e991d8939e0fd83ae53f437e1558e7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02002880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf2d286b2f3cbef83547d0be3d1b52f7941247ab362d365aa9a7009baa317bc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02201130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cb66ea8f51351c639f24e550334f45af41816dea8ac4a8c1202e35584db756. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02202041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2826328d0234d8a553e66edac39d05379e644f121812b4c96fb5f8d851f07c7b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02202235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a8de1e4fc277fb7f5365196f309caff2c035aea7f7e9616551f0f4cd6d4e9f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02202236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf02e29deccb8bb11a12b596ddef479a2519070c34fe8f7eca6399e49468f54a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02202237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9badf5ed2ff68434034931fb01a8556240f3e517c7f6f7ff7dfdb081c0576e4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:08:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02202238.
ピラミッドダンス feat. ケンモチヒデフミ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cd7534b2ac3da9f69574800e7d524893baa728751879a485d2dfb78d16d027. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02304069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf67ad9785c8577fb8f2b4338a1362452e6887d972f9cbaa3bb68cd8921cc9a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02305002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32b18c3eda467e402fb3f52b255da251bef8e1243b8a81724447dd7edc6fcce. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:32:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02305003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022ec8c1b3deeaee0a4be2d063168bfebc075d15a06f01b0551ee45f71f51f16. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02305006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938fb63010428c6ef5f0a527af90a9ace4c6e55de687470807de8e0b26fe2436. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02402754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee9973f6c975342f9fdb83409383503040acb4c618fdc3b2f4288a0f33c7d6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ922508203.