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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4676da07f5b50c4c5da71e249c8fc69c9c956fa4ff7123e66cf4df4621405a25. 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/c8b729c0-4123-4a25-8343-d1d6b56cddfd.json and https://artists.proofprofile.net/proofs/artist/c8b729c0-4123-4a25-8343-d1d6b56cddfd.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b19704061157af7818313a954d6af2396ea4d246357a7676c1672143b6f35. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEBL60553108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f914ed6a35e8c27ae43fc7dd2ba066e73c322ebc7e9a47669f5aaca94e1b72b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DEBL60445093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e0861acf5012f1316ae1279014090e94f01da9240e7cd8efc72779d3806293. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/DEBL61450818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e61ce3aa919b7ab397052f220b492c753a9deef9f325f6006d712ccb2bb4d14. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEBL61392005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9725afa987f65ac29f357a2762535d1b674301fcf87c04cf7a04f49b5a8ebb0. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/DELJ82023826.
Demand For Supply - Ultimo Destino Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce4c526dc6c74927cbd1bf6e330720ab94e0e103cf3ed837ae2c7c7d5c38a5e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEZC62021302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9b1335c8332c3bba793b91fec969e3b7b5a10742d4d143e92bf058554ba37c. 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/DEZC62021303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaa8ab1943d5a5f7c0a5ee8b9e87265e5e2d20040233f7d360421f09809e0f1. 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/DEZC62021305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35a2cb27e8d617173f6bfe6de4d5769e2d9c81c75bada0b5f1a87d50f1f147c. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEZC62021306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b367a84d582ee743c15ebe4c983b160e3ffe4e8a609a0bbbacdf22a359547c. 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/DEZC62021308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423643c37a2a67fbd8b8df45fefcc55134354adc736f3eae0774fc928ed954b7. 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/DEZC62021309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8abc5ab9d5c132f261cf8a396690b97dac6c747d01f8582fa479eac2e8651a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEZC62021315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e211823aefdb77387de8110a2eb2afa3f02773721b54072f6bd64991604cea. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEZC62021316.
Golden Dreams (Monty & Julio Posadas Remix)
Golden Dreams - Monty & Julio Posadas Remix Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4af33485e8ade0cb011522f525f5f075d695681a0be68ab7b015f8b814184f6. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBKQU2511945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945d7b28d8f0c4b37ecb522352c64f74a6e0baa6ab821ed440f95fcc27f341e0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CAAD21110550.