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 0x390cea0ddf6099cfc6ef52fcbadf8ed2a794f775f3ac0b1a2f1db5d7ad1101a2. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07500d4a-89a9-4f56-9e70-467b5a8722f2.json and https://artists.proofprofile.net/proofs/artist/07500d4a-89a9-4f56-9e70-467b5a8722f2.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 0xa387ee51301fa6abc7a27b0607caa2136eb653367599b314539243f8adbd7102. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUEM06900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538ff83d0ebd45a97290572f2eb733706e1bc4e2c538f2f64d2987ba60a86c16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUEM07400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9f01a8d557c54bdf41ba4b45bffc7ccded6827c256705a65b923c080e380b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUEM07000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b788715979c735c0609f6fad1df5c6a637d8fcc530252ba829c11ba74cef883. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUEM07100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51525cdfa9d1a229d4471720cdddde0a1c347e4d6191beae253a94fff1acaf87. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUEM06900642.
Speak Softly Love (Love Theme From 'The Godfather')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5addfdcfcd98b4a2accd499702b3cd35a0b8cc2113d7a0deeb528eb17fe36c80. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUEM07400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd625546fb7518de0d5cce4d6f44031bb586fa336750bd4f5de698d0e9ecc92b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUEM07100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab3b63c59c3183f989e6862cceb0c21e0085e9807d34dda0ede1dc7bb427ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUEM07400012.
The Classic Gold Collection: 1967 - 1985
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51525cdfa9d1a229d4471720cdddde0a1c347e4d6191beae253a94fff1acaf87. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUEM06900642.