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 0xf4d083df07d958cd443653c83cea6528d06ac4ae39a402e5ce7dc25ebae7d445. 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/1062f701-8cb3-4684-ab15-404530c78767.json and https://artists.proofprofile.net/proofs/artist/1062f701-8cb3-4684-ab15-404530c78767.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 0xe6b6a6261587b59f73bc1b026f5ff91a9759f86240ec25792aae89dffd1a0e69. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USHM90726473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ffbdf75d09d91a9b246b1540cd8a10826701b5667b259cde474664886992d5. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USHM90726474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326b79faee75c34dc693061581c00eddea84a886a040fdc34025792780435b2d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:40:31Z), 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/USHM90726476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc476a1d4a8bf624d5717e27e9d31bf84e1d31d8367d7527345d0fae1119d1bfc. 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/USHM90726482.
Canciones de Amor para un Mundo Imperfecto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d311b06ab2e566a5ab7ef353c1de53da1fab489f3d4f0b1e620185f51f9fb6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGJ1268541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a70039e67688bed4653a3d57365fed2da564a7d418e4e4c4954910cf6560fc5. 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/USCGJ1268542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08140199b5725fdb2cd61ed36704326305c8103af9b869259ab5bbd1478f502. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USCGJ1268543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ddc3e3ae39dc5b06d14d5cf18540d809288e2f1e964d000527b37ff0391134. 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/USCGJ1589085.
Despertando al Gigante (Directo Monterrey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f4b68e3d4e77adb5ce1a5c62c069bf13111fad50dd2e5693601b44aab086a3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USHM21626113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1841f4cb48ffdcff1decc1aa3db4f153c24896128426101baa710d3437748b. 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/USCGH1741394.