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 0xdb886f7937cb7391140b96b6a8735ef96edf4f963ece93e365ea8662c589bcd1. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebfd126d-7847-4517-9463-b12e9e3f65a5.json and https://artists.proofprofile.net/proofs/artist/ebfd126d-7847-4517-9463-b12e9e3f65a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
si tú te marchas (feat. Juan Campodónico)
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 0xdab29485cb05b4c0599f5d386b683898e380c3d2553055da45421326d885ba2f. 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/ARNDG2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510eb0036c35d9e2589f67d17a4c21f85f647f4018adb0c0b50983b9f7b76900. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARNDG2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ef0b77afa05a50c51f7577848b0eb8782540325f10f634ab9f2c81d7f36142. 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/ARNDG2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732addaf1d301c6a70df9059f63850b56ee2f8bc18a0e9eddaa76e132b9d82d1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARNDG2400003.
construcción (feat. Luciano Supervielle & Javier Casalla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01943523146a62f2f9b71fb0a5e143e9f2369459277f322e9d6effa93287686e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ARNDG2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424846f33539b215e3f62604dec8fe196de6ee15b686b1ff97ae8f1c6ddd8696. 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/ARNDG2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f50a8da2e8ed90947f681bbb497868d6c25a752ee28b1cefc19a219e6ebbb08. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ARNDG2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a0271bcd19c1a7b900c7eb9cd568d35a183e39357aa91e9e6689e9b8402e11. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ARNDG2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab29485cb05b4c0599f5d386b683898e380c3d2553055da45421326d885ba2f. 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/ARNDG2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e914a12adaff144b5b233106b67a0fa3191f7a9930466ebf18554856972ee2b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ARNDG2400009.