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 0x096bb1d6b855e371c3b0517bace567db1b81dbbc0f49b038a4ab46e4492c2be9. 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/92130191-533d-40a0-a2f3-6f3217ad022f.json and https://artists.proofprofile.net/proofs/artist/92130191-533d-40a0-a2f3-6f3217ad022f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
¡Gracias! (A Dios y a Ese Público Querido)
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 0x6825ceebc5ea40d8106b276ba931ca1a239020163546e9214c3b55344cc945e6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/MX4971527118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8eb3c89a3081238bf74639cd1a065140bdf32e0931168250548f6bced7a3ee. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/MX4971527119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c5b8205e36e8afbaa166cce6f605015636f7644940bbc47a9aaa3e6834c2ec. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/MX4971527124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec2b61d001ef3eff5cc6aadb3c6f82b3f6fa32107df577292367eca5a617552. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/MX4971527125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbe3039c08b68e2f5d10d6f00354b373b5547c2a7e037ab6294e7601182d911. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/MX4971527126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0630c94632a37433b0266d2df808aaa2c75f46f44dd042d3120129549568eb56. 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/MX4971527132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140a1b7ff5743b3b5675ac4883f01f2cc8f29ed989869dd49ed75e5d198f165c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/MX4971510188.