1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa7030d18119f1f3a2dc2dfabcd7349bbd35fde0d7c0f0e40e7dcf84aab4ece4f. 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/e66d46ef-7c72-49f0-b6bd-7134534fe361.json and https://artists.proofprofile.net/proofs/artist/e66d46ef-7c72-49f0-b6bd-7134534fe361.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 → block OTSBitcoinBlock must exist at that height 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 0xbe313ad937c8400f7f00b6578c78a4ab1defeb1a3863d0afe8e02cae168f5ce7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN42092317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5a36380c6d2a2566c1a7edd9e227b0b8ff4b01225824b5b6706a14536d24f0. 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/QZHN42092318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e24bfa9f3d75725b038aa8e507f02a3f4ee3e157b09134522657311766a324d. 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/QZHN42092319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968729d54869de5676714e102bbb11a6020425856a20b82de38d3ef2e8e7dc52. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN42092321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3568cd98f7001f80c2bf9e724a84109586c5efb89456e80518b17411bad91fa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN42092322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38673d2582407029c5d274686707f67c0597b403d8837e90c79e45ad1c6a2530. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN42092324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e069730d14da653578a3fffb5d0514fbd9cd15276c7ddc2d56fba48cbebcd5b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZHN42092329.
Testicle Testaments #1: The Worst Day & the Best Day of My Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8baca406f01e16eb240c8ad184c556b0fee9ccd698a2a1a09acaa24d89e1478. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZHN42098484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9440a98002e25c1c1058c429a207265f6ffe1da7f6d9ffede19b76fad02f38. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZHN42098485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd933b4036888eb57f2652c65ef55a00939ec71efebb71e5b9a55c6470f59aa7d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN42093866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef54a87c663b486b070e09a32cf468570f2e1af20062dbeb02fd9b815119a6e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN42093867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5764c41ffeef5267805a925af54f637298481b8a7ca048e5bc6c7dd2e0e4e7f2. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZHN42093869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586f4c72008d2cf0359ec31c4f2de8c76e26beaf0c46c27e110c461228ee0556. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN42093870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ccc532d0e0db8bec38b27e9ab4155a74d9cb58e969d08abc17d39c7f4fe712. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42093871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6cde85a394ccc6916ce58c859e5a339bde0a7ef59b24117f889e83252a08ab. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42093952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98beb575b32066bb404367ef393a836c2126e44ac855a7d3dfefa906218f5c60. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42094049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d5bd4a9b257b7c72529acffb7362d76bd5a5d88bec4532a139edd439f45c80. 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/QMJYX1755103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e9aed17acaa44c8de81b9fb02f90e223d45ac499b124892f97c4e95b23d205. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMJYX1755104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe956726047a59c173697fce62cfdf44450e512bf80b97f28326fc6af790c7654. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMJYX1755107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66013c633cc1228a33421f4b304c67be71e43a9ccb783e50d95390d12271d541. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QMJYX1755108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876f99ff2c4f03c6e0a2adb5eea3268a4761492a1cf0eeb716542de90fe3bb5c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QMJYX1755109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d9b0f577823ded24d99fd0853589640cd67120e3d5cf2d9d18aa8dd512e3c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:45:49Z), 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/QMJYX1755110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634b92c7f0a246318bd37cd19b602edb382e942c4d7eb7189d227fe1f678c0e9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMJYX1755111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa927af0a7c156409677aea4376d626d7ab8f1fcf8e2f481228b4efaa90fe6fc. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QMJYX1755112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90004e703395db09f13edb188f92a2b517b93b646c428ec08c9455b464daa4ed. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMJYX1755113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc1204eb4ff3d978ec149ab3bac06d57e6c250f6a9b5805d473d9569cc8675. 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/QMJYX1755114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e331c00468f3e64771c6aa54b700e32d89c0b8745194f42875efe5231e5d0f9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QMJYX1755115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf324fdd8bb68ace212e5e06871777b30f1670fb26b491a5b0096f60b06677210. 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/QMJYX1755116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca690317d1d89a891e1555a42ae43b4df32c691d381b6663e40ebbd598fa276. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMJYX1755117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d9eeba204db39c6882472f59ab5c6a5d6caa5f10b1461bc5b34eb18301e203. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QMJYX1755120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fd415063542b8def1d6023c693f7a48fd4057820145953701b38aca30d1a8d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMJYX1755121.