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 0x35c6029659002ca39950d6b0ab57f3b76b75dfd60b99d2771be8fbea82be697e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bad909f6-dac3-4765-8252-1173e86d6eb1.json and https://artists.proofprofile.net/proofs/artist/bad909f6-dac3-4765-8252-1173e86d6eb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quiero saber de ti, mañana que haremos, devuelveme la vida
Si no estás, carta a un amigo, me enamoré otra vez
Te conocí, solo quiero amarte, amor de chat, tus ojos no me ven
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 0xda4163f7c82039c19f724e567ce5920341f1151220ad3b4f3039e4c03dc3c04e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFP2441218.
Quiero saber de ti, devuelveme la vida, mañana que haremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61724364f363f019e5bc0cafd1f93850113fb1ae5a028c204b77a61d4fbb9abb. 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/QZWFP2444353.
Si no estas, carta a un amigo, me enamore otra vez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7912c30ab919e989238640871c5be2f931bd3d42fd8bc00cd65b9582d7c77ae. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFP2444356.
Ya no recuerdo, cuanto te amo, ese te dejo, muero por ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf885b4ca1b23ca0ab71e573ceba1cd5d9ef978c69bce8ff77d35fb3da3f3ae6. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:30:47Z), 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/QZRP42586927.