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 0xbdc440de5500e28a57fc13fb468ca76882cf85c96cd5ed360667f03cf21eb072. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a51a7c7-e09a-4143-a265-81469aeea9d7.json and https://artists.proofprofile.net/proofs/artist/3a51a7c7-e09a-4143-a265-81469aeea9d7.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 0x77d34a7e421f291c336e5ececfdeae955e984c47da0cd51588675191a5351dff. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:38:57Z), 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/ARHXW2301470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0051be3064a10f69f3889738d9e562a809743829a0487e12c52879048321e7cf. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), 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/ARHXW2301471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ec09c5e5ce72e057f488514d2074438c649b3a16a8d5ef7f261791cf84ed26. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:59Z), 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/ARHXW2301472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbe3f30325f3dc64f72b96614ae1dcd80d7d085842b6fb3858c2d197222465f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ARHXW2202077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68e90c89fb4c566f351ce281d7a452fafad5baad1454d04e6ce999d8ce74ca6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARHXW2400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041e0211f812e2d51b9451f3f87cc7ccee321ca9c6216c6bdd5ad68e6f3f494. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/ARHXW2402452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760ad8637aabb61b2c045bded71813466cf405ca91793375881e17fdccce47d7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES71G1625844.
Canciones Sobre una Casa, Cuatro Amigos y un Perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9040cd5eebc35824db65dca500316982465f577c040bb8058dc086ab99863e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARZ882100023.
Terrorismo en la Copa del Mundo - Sesión 20° Aniversario En Vivo
El Mató a un Policía Motorizado (Sesión 20° Aniversario En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1a1b0e3b31000c53ee8eb7a5d5ba849c6c98949f719506845cccb0a9b14b9e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARZ882500007.