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 0x3f507fa21b7c9f34d1cf7e59cbd64a0538cc79c59ce68655ddb84680643b7eaa. 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/dc05585f-5199-4aa6-8dab-1e93973208bd.json and https://artists.proofprofile.net/proofs/artist/dc05585f-5199-4aa6-8dab-1e93973208bd.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 0xc5e6ea496995451dd587ab174321563d6de3a587dd1af872fbe2bdd48a1b8c9e. 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/CLCY42300922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd9eebae873963fdbd8ee0a5e792455dc0d4a004a6cdcef47016f29dbe5c87d. 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/QM6P42412528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934b43d5179d0c3b9a7e5da8ba29d7fba3e60bacb9829b5ae7d6207e66835058. 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/CLA352300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d3f4377ec5718872e3f451556b3d88b14088c8aa0d9a507fcf9bbfd88f77bc. 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/CLA352300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934b43d5179d0c3b9a7e5da8ba29d7fba3e60bacb9829b5ae7d6207e66835058. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CLA352300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5029fc0b12c8ca63e3eead84bf8c4e8079b2eefcacaa8edf18ced6e0456651ee. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CLCY42100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90cf28c23c1c34e375b04e1a8fb2f8534bbc3e279827a497969fe7de6a08a10. 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/CLCY42100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b8d288bca809579a3aae293ee7630a694de36a75dd30620e106461b5f593f8. 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/CLCY42100908.
Te Quiero Ver (feat. Polimá Westcoast y Young Cister)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e81de3a40157dc7a3a79a8abe35b5eda9e0ffc40a6117e9b8e866a6be6354a1. 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/DELJ81807170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e36869669889ca64e5f33f7f46f59d54955cef269c5f2d955a40fd5f6b5b8f. 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/DELJ81807172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecf5b9654aa4316929af9ef663769a9baeb68eb3bc07c3429ad48899c22d985. 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/DELJ81807173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eef1091afb1fa6bac9df1986c53ffe5e9abe42fc159b70a1a56ff8141678a21. 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/DELJ81807174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eec52f9e6507fce10d7593b87ffd81bc26c34d05d7c31e3860b31ec89233945. 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/DELJ81807178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ab9dbc417177c911b8efcd0dfb2d6a540401b9b8cffe0c8fa4808a09c31622. 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/US7VG1861292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a02aaf90f9f02957754acdaeca349b051d35e90ad44c34008b465256b92816. 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/QZGLM2591829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4616d375cb8c1017a8677899be7148d5465fcacbaf21497836268427d04b288c. 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/ES71G2503959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4728bb45d6d1893f9bf5f9f963cc69a5a79a1ebcbff18d5a4ea336c574275333. 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/US7VG2516877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977c3fbab26e9c68e64af50ba4df97e4f62f19cd734876fc23b7c5c99324e25d. 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/QZFZ72175616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963299252540b6fe7582c8e260f051a4c07163de20bd9c2ec3347ed1088e8175. 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/QZHN71946843.