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 0x9e4994157527f93f294188ad5e55667cdfd0687a00c07aa0f4627c434ce1b026. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a50c035-c3da-4922-821c-c46cfb3f450f.json and https://artists.proofprofile.net/proofs/artist/7a50c035-c3da-4922-821c-c46cfb3f450f.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 0xbd5643bf9e304ba28c8af2445eaf414a0b81762da93dfe4a0996bb1b60e94c83. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB72309979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6d4a953574cc7fb768f732013d724e5bf58fd3be0da7af9935651b72ad81f9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB72364228.
Oración de la Mañana para Encontrar Paz Interior y Fuerza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa507e70ff1d5f0bf84cecb4e945392d013bf0426cdb0f2905c0a8d8b723c5a8f. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:57:41Z), 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/QZTB82380146.
Oración de la Mañana para un Camino Iluminado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17cde5246555e5e5e3b210c789f714d648f1b0da50710f5c6518bb00d89f1e7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZTB92371642.
Oración de la Mañana para un Día Exitoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d9965a8eb437e355f34ad89809c6b86049036476cedb5a64431bed14662799. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTBB2330726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4a980a3a462704e4038389b1c1d5e26fa7a5d53e9fa9e283ebd839cb844752. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFYZ2482148.