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 0xc626feade0d3abf3df6977184961c7c6da1530c9a9057d950bc2d9d90fb923cd. 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/711b7a4b-9f01-44ae-8553-8615ff8fdf71.json and https://artists.proofprofile.net/proofs/artist/711b7a4b-9f01-44ae-8553-8615ff8fdf71.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 0x0af8323d3983ac7d88c23115ed9f64f4b93c9ae3a65459f449b1d7fe6479ec25. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBAAM8801014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4427913a9adc9fdf1cc175e0bb644e593cd926b1b6df848edf1b0bac5cbcbe2c. 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/GBAAM8801036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385ad5239927b8236de61280f8aaed4cd7c9271f2874879264a2d529fdeca88f. 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/GBAAM8801013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafb1edc552c08746b4a0eefed029455cfd5f6efc0b2704b549e14d70a72ab54. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBAAM8801015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf7c55124265e5a1136571858a30414f5e602dbf82af51f086b7a2e43be9bc6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBAAM8801035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa3dd372bdca613b63095d3ba43efcdb6ff464d1e907d8a548398fdb073cac6. 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/GBAAM8801037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852c32c5441975873183e6e36f0aeac00e7d2da62a9088afb39691c56adcbf8e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBAAM8801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733a657b8606db837a6ea10e9ce83e39f7a6965376dec5e8f419de1733d8bf3c. 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/GBAAM8901004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5984ae90528b0e7c8b20403a715cf2d295824d340d33854ebfa9904edf20a99b. 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/UKQVQ9200010.
Wednesday the Something of April (The One Woman Show) [Live 2004]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec36decb5a8d3dcb9b3a483cacd45532995f0b35878fa6edfbda2b7f726504f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCAFR2170266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9c11d6897851f6dfac99da4647a33b0e34e9ae11697d871cac0090ffbe9eae. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCAFR2170270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6741fcb1e7b2c9062ed1f9004d64d719c8457a26945736b65aa9387c0e7251. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAFR2170272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f3a8c63fbebb3e3aa4f407fc9ce17d075e525622e7845a38c61128a7770ece. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:48:42Z), 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/TCAFR2170283.
Hits of the 1930s (Vol. 2, British Dance Bands on Decca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40c54544c1d94dc235ece7c2011b63c0029e362d440dc2ac0383e50a5329a7. 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/GBBBA3470960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daac0ec3e7748fe1dc21ba4fd016939477b490fdae0ff7151bd42c0623160e8. 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/GBAAM0300052.
Jools Holland And Friends - Small World Big Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85804f30066cfc1e0503ed0aa861a74a38460bd93aa6195cadcf4cd59088f741. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCRL0100078.
With Love From ... PolyGram 50th Anniversary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34450b0e7acc38bbbfb7ad54b4641cdf067b1aa5592527f0cfcf2d9885d9fd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAAM8800004.