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 0x7399b3d913dd17b6ec386000ebc828492502dea68fc679ec8295506cc7205f91. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/658693d8-ed2c-43f7-aced-eb01879775a8.json and https://artists.proofprofile.net/proofs/artist/658693d8-ed2c-43f7-aced-eb01879775a8.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 0xae37cc37bf7f7d590fcc0305880b6c15d6a33d8f0d2ce49fabd033df2858e517. 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/DEXO52434549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2460bd6163ea4d79a35b022d98c9233b5bc8c3be368efd64d590b45fb447a1e. 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/USDBB0992275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f160d4a256882a6beaa33ff45cbe60287616aa1bd2f9953f7e0f31437d77e30. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:24Z), 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/USDBB0992436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958390b747203afee09983ac92913c91fe684b02a68d0335b9ebd198470ad646. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USDBB0992437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fd47b4e2fbe0d5df2beed905bcec1fb46dc7eddb757215db0596ca0ef50167. 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/USDBB0992440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4788af018304b26a25f3d70b71363128477bb4e08c1fb81b50b9180349a17705. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDBB0992444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8f4196208b198c64ead0d4b961ad350d0dd2601e22fb8b9602ddcfeb395c71. 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/US78T0506777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8d4969c227869d5cec42b474b0cb9a5a5b1c4ac4ed1304ca79974d6e87c273. 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/US78T0506778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5dfd31837eafd4de8f6b740cf7c94b4d04ce031f1b47df32214907cbbfac36. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US78T0506779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb93f7c005d047e5d148c81841521cddf57b76207347c6f87a4c48aed311147e. 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/US78T0506785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f22ad2cea27929b810775312ca838a3b740dee5288f243a6b2eaaf0e25a69. 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/USDBB0605486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571939f2ebf2e9fad447cd86b33cd55dbd3a912c5ed9da4b41e0812a36964a18. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USDBB0605706.
Wanted Dead Or Alive (Bang Bang Push Push Push)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49cc988a9c8e330a79b4bab9603c7b8fa0715c7561f1d591080fe2a09635a03. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDBB0600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb120fd61574330f373a5887c8e5f65a11f854370bd8a7887a1f4812cb19a2b5f. 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/USDBB0600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3570eef23214330db0e3bdd9aff238b1a4f0a682406f20d074805711180137. 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/USDBB0600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204ea55d15c1154d3a5ca1fbef38d5c0a1d0c9f5a52d1dcea473e84594b7e7d0. 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/USDBB0601085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cee16c852e5fc3b04c61c2888d126f792ce85943b8658a0b3217c58016d13a. 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/USDBB0603100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028a744af3c07842a7e388b3a3cfb5531d702fbbb3e5dca1ffd71e9fb90297fe. 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/USDBB0606054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ebc81f2587b7d71a3e4a1084bf0295d84d55dad5d4519898b3f60811a4d19. 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/USDBB0606221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2306227b721e36826ccc7fb3f4a61152100d4f6bd6e3ea2a077a267e9c3587d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USDBB0602817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee9ffe7ccfd93c5b72219fd72502f83121e5e32a46c6c258ae3f123085cf994. 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/USDBB0602954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7104cffa4d9c0d8d452f8f7296906979463a8001b98fc9254d29f89b9534bccd. 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/ESA031320852.
Vagabundeando!/Hangin' Out (Fania Original Remastered)
Breakin' Out (West Side Original Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32bb1120ba2cad9fc961b583ff7f32df2615d93acf70c9145fab593ad8323b5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEH742167762.
Essential Classics, Vol. 897: Joe Cuba Sextet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76031c2d2a741e77f71aa294dcc13fdce40931f370069dd28a3b26a4cc03e06f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR96X1813962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78700a71b5db6595d0f34d418f9a60743b168f32b7c7b826aaa55a00e3a436a0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USDBB0992433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49cc988a9c8e330a79b4bab9603c7b8fa0715c7561f1d591080fe2a09635a03. 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/USDBB0600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b363f8d8717966f33c8dde196557b0b2e6b4cf97b39bef1234b58c9ec30c86. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAWA9769955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92545c3877df3f179b345119c8593e9a4cc7fce32836bdfe7e015ca95c2976d6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USDBB0604568.
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 0x2de72d2b05f4e955cb451fd969f3176fb4e78ac5b391394b1aa49b2961965703. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/FR6V81521263.