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 0x0bd04a9fe8c887bf5d2265e46fb5f8605b10272a2f73625e56c2bdff4a161b2d. 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/e8e3e175-7cf2-4c02-9e61-aa0c1600688b.json and https://artists.proofprofile.net/proofs/artist/e8e3e175-7cf2-4c02-9e61-aa0c1600688b.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 0x04394e9988aa41890cc1ebd970f2c88e6838f1d0c3756c364393d3ab8b584484. 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/GBSMU4585922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a403f22d48fd4fabb5b637da307a8046737c9c80cb88341ed36b0268f9d311. 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/USHM91864134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a638c815db3d63e55e882bfeef307f28a3904e0052632bc51f65c954558c94c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:57:40Z), 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/USL4Q1950696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e47e253a93a033f6062d14fefd71f0f09debcf80281e5c0c3cb5c10948dc69. 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/USHM82020312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b784079d41ef3dfd377b3812f905001e3bc84ec876f1af9c6ac51178b96c70d. 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/USHM82084243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cec2fc5ee4126f0915a3b8c85af4324cd73138a7243f8e532c1c5fe71d8a626. 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/USHM82077389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01024fba3bc8f13f9d288762d4cd73f34b35e889290ea4417e70212cb6c86b6. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USCGJ2104320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4560e616d1245794d6a280d2c81e4ed65d172c7c3322b748b952ec23b791807. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USCGJ2104321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260cc7e44d7377d4e2a8036632f27ca65badbf4c5dc316470fafd0de951486fe. 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/USCGJ2104322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822595d110a2b2114bd6b3744a218db1909817d5893eb3a441a0d1f399e89b3d. 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/USCGJ2104323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f054d38fe2ac4fdd57d135fb9aeab593e38c0adf1ed895222077ff1ecbb50a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ2104327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946a720dd061d0e719872300f41693abf97401ec83fe09c65ac11dd9148a0d19. 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/ZZOPM2107537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf554c319f9bf524ebb328a15601740dc3b6c973cb67e16328cdb8801a25a0f81. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:26:16Z), 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/ZZOPM2231358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946a720dd061d0e719872300f41693abf97401ec83fe09c65ac11dd9148a0d19. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ZZOPM2107537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea6e8dcd5ea12fcd1d9687552c0363fbeaffaeb094ed5b7bad75c0c16a54db9. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ZZOPM2107534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6f01f10419beb411789a826fcdc1e05599485f6f049eceb0108f9c94c405e4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:20:50Z), 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/ZZOPM2231359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f271e50248960b17e8c2b7eb896d678c1bd4078f2b949cb87b6a253d23255e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ZZOPM2114323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fd80e3d33d3f078a246001246dc1cf9d906a3d399f0949c50f2615ba8cafe9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BK4DA2213328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3125023008926b4f6f44a4b8643107ac4817e2fed1ba77ffae0b9276e3905da1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BK4DA2307608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb8b1a15b64a386ec9e84aeb1b4a87ef7704d805a622576054c41cf4c23749. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:37Z), 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/BK4DA2307922.
Lento El Tiempo (feat. Francisco Charco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09a15da117092383c5ac815ffa41f72c939a6fd161f46dc6fc8cbde416e3236. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZW9K2420176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87f7dcb0f96f932cd2f8d5316a496b110ec8dfdcb6172352fa8fe8617246f0. 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/BK4DA2550640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0442fc03fae2685119e61e0e2daa6e46e5a199b547809256a17551498bdc2896. 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/ARF102400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a33de98d011a0ab7ff7717bfb50c86588c4e651249f211c57ccdb3d80ba82e. 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/USDY41777021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc941c8dca089a1ba70f7e430629592e38bfc70cb3f321f166283154c286a7a. 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/MXUM72401614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108359b237b25cefba2df9cc5da85427c227063b0ff9f984517432264a072577. 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/QZTPX2435391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc941c8dca089a1ba70f7e430629592e38bfc70cb3f321f166283154c286a7a. 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/MXUM72401614.