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 0x194bd8c1999ece4d2e5fb025de3cb20db3b95233b342a5bd1f814386742a2e51. 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/f522aaa5-1ffb-4e8a-a180-42c6cdee7ccd.json and https://artists.proofprofile.net/proofs/artist/f522aaa5-1ffb-4e8a-a180-42c6cdee7ccd.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 0xa20516f3268277363e9c83347894afb8e184cc46438e2620b8706ca73911c009. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF007620010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4135991d0f5ce7b36a23480a76f8e8b957cb928602b5dbd69a376004552caa6d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBF077620020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210fb8578ac79a04f3e03dc154aec4153df13d9b971a1702d335b08b9d2934bd. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GBF077620040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8346adfdcf9a4755feb039794baf32b046d943c304fd7c57b33fdda789e09092. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:55:31Z), 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/GBF077620050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3c1ab843f2ea8f74c7585f58f2ba443563aa63160a7dccdfdc69c5863d59c5. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GBF077620090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99007fb6ff716b5d48c959147a7e38aed411fd8cafe47c5b99de5c3f41e70cd9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBF077600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb7ce65cc5325da2de9bfd3df57758cc227daff02a4134bcefd03e3487105b4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:49Z), 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/GBF077600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a032fd79abf82b49f357c99779422934b37a2e789fcc813a2d14fa91577596e. 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/GBF077600150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e738b614e4eb94f156c1434a31653fe5d41e273a36487d20d5268df6418ddcb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBF077600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff093967d47d4c645f8c9f69086674e1bd89f2a37ca5b09ca730606f1648fe. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBF077600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a9bda9a64eab576c95432d649ee0edb5189716d91da7afd5dacf53d1ee52a7. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZTB62315525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95149677d4b4ba06a635fa101821efcae06ff77d31f9605ca5c1f619b8e3b59. 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/GB01A1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f5e3eab23f04260183d5283619fdb17d6db3db3a349782fe2d6931e10fa6e8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZES82444793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f47a48b5ff5b0c924dd98410a0dec5b8f09a08d9135bc4b0cdd39a5f02fe75. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:47:04Z), 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/GBAYE2400249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc26195475b4cf34f2f9bd9df0b65a0d023d1d9be66cc7ce733a50726d3b0e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF077620010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dc694928b30285d0fd10cd2287068015eb4960ff3437cfbdeb63be3f224da3. 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/GBBBA7860270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87bf9ea8c38a9a2e02436d81020118001a65a582e70e46bf5bada8c5a3d1207. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:50:54Z), 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/GBF077820810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba5a501dfb4013de6b928ad7eea1c907f1338983e85282029d86567b5f65fb3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBF077620030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c954dccb985e263f85f8b269732e4d56c14472c7bf7ffe95fde1336cc284bc. 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/GBF077601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105f1f713208d59cca8d7218911acac3678a149aae553d00dac7e96a391c24fd. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBF077601040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0634683f987d8f9e5b6409e25776797b054d4674eba1e64305ccd6d6bced3c. 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/UK3MR1200001.
Romanza (20th Anniversary Edition / Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313e999a7354cb89f00fd05583f268b0167578b14a12f3b8710602a8c6788cd6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITZ049700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc26195475b4cf34f2f9bd9df0b65a0d023d1d9be66cc7ce733a50726d3b0e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF077620010.
My First Love - Based On a Theme By John Miles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdaa2aa7e4b185dd03d4b8858e9c3a346f19b52e0bdeb479d127c084e3d5f5d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6540865923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc26195475b4cf34f2f9bd9df0b65a0d023d1d9be66cc7ce733a50726d3b0e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBF077620010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55ccc3ba9d4abfb80fc15cd55b6948796d09dcc32194735728b08298d49898d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6540891547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313e999a7354cb89f00fd05583f268b0167578b14a12f3b8710602a8c6788cd6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITZ049700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edc26195475b4cf34f2f9bd9df0b65a0d023d1d9be66cc7ce733a50726d3b0e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF077620010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf33a896e36502258b2b0d59509de4790ca8709d6cda06c120618e8189efbca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUU41800478.
Music Was My First Love: Music Was My First Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b8a2ae1998ee51a17587b6047f7c8b37e45dafc53ba02de135ce7f1e2012c4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLL6R1900675.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0757c1cfe367fdb5272f7fed803d770c239ade36977ef83c90b2eb125b602. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEL211600020.