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 0x12ade918ffa4895c796060035aab14b170e106c6042e8c35b822a2e8ee677336. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3f7a950-e120-48db-9f3a-29e85b90c225.json and https://artists.proofprofile.net/proofs/artist/c3f7a950-e120-48db-9f3a-29e85b90c225.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 0xf2f5a7d8f63bcc7268d68c9e6d97e18b185f039c56e152d3febae8fd9aa6795f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARC290900040.
Hple20, Vol. 1 (Grabaciones Perdidas 1996 - 2001)
HPLE20 Vol. I "Grabaciones Perdidas" 1996 - 2001
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e0d3c670f99f6e71b8cacc84922f3f7199269107942e46a840a60fe6e517e4. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:06:17Z), 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/UYS261900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ac13b5616d1fda29948ede1e39d2947fc1ea27cf292725be0fe5708d4686ae. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYS261900002.
Mejor No Hablar de Ciertas Cosas (En Vivo en la Trastienda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608f727e88e79b3a5d881e9295efeca144bacf94cc29c60337d746fd73a10bcb. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:04:25Z), 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/UYB262400095.