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 0x43911b823837ef7cb6154701ff9b58e14bcd3c09d7271292d6ee729a87c86d4f. 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/0876bc22-5683-436a-884f-f4b019db3f3d.json and https://artists.proofprofile.net/proofs/artist/0876bc22-5683-436a-884f-f4b019db3f3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Very Best of Claire Martin: Every Now and Then
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 0x31337cc9a44eab24792cd30c6dca1eea07ee6ac4fd288a3d1e77075f25bf5a5d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBASH1139404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2f68905cbb16d74c0cb16fc8f59a583f4a3b5e640f9d9db014dbe0d1485ac8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/GBASH1139410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e0d4f238d218f071e478a4d61e7a213212cf80a087598ced8a50ab2e913344. 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/GBASH1239001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4241f17fd3e383a9dabaa26078699a4701e6810ff4f3f7b7b303c367583a6277. 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/GBASH1239002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa016cdd14b31f0d11d668c7e72d66bd644fb8cad8ab141972a2b3207ab20b3ae. 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/GBASH1239005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5dfa51ac1dfb07918476b8678aa4606b3826a76ff44b50ffba99830007b1ff. 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/GBASH1239006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbabd8edd5eb6494ba3e87378c035ece9f3a2cbdaa4c386339370f10dc6a507f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBASH1239007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb257b59ebd49f1765dfb96a4c0d7d255a3d492ba7ac9c703bc8ea588a333c612. 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/GBASH1239009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7278dec4134aaf5db4b45224af1270e90f5e81df26a6f18a9d7e459cd51c7c9d. 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/GBASH1239012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba15d9d7f5227e44f1ec12f648d18b253ab682ccf17adaca75fe20902c2df5b0. 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/GBASH1239013.
Too Much In Love To Care (Claire Martin sings with Kenny Barron)
Too Much in Love to Care (Claire Martin Sings with Kenny Barron) Taster EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69fbcd9b89561b817ad60512c61f28403bb7fac83a9c6703153c064ab328938. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBASH1652405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c81f9b3155d76457ed40dd3e80d90b0b4060d430ad9f6493a203e70ae888601. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DKBDB1802107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96acde21b3831cc708067fb866dca22c021df64e0c86afb93524e6123cb9b9f0. 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/GBASH1956302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c72ac16789ccf66fe26e7d02c714af862940e7ecec6e42f8ca3744afc8f28. 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/GBASH1956304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf36dc98d1e89a42de6e751857041e52f0dfb5f49203cbfff43ad2ff2fa9015a. 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/DKBDB2301103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79468e19b0da0b016d4b8a13590f7c6d1cc4c126f91317bdd4f26989ae571674. 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/DKBDB2301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf36dc98d1e89a42de6e751857041e52f0dfb5f49203cbfff43ad2ff2fa9015a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKBDB2301103.
I'll Always Leave the Door a Little Open
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba30d516f91eb1362c61f91b14d9865819ac36272000b7007df8c37e962db1df. 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/DKBDB2301106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff92838d7c343b2de1fdfbdf2a1f6635878674c2e2b8c8718dcea4ce1ae1267. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKBDB2301107.
Mimi And The Mountain Dragon (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ada5a9b93d84030b6f3a2f47ef8ad9c8d68eabfc09ac500f2a3e3fbeee3b5. 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/GBUM71906651.