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 0x5247a03467e74ec8c1eb3307f8a0852bafb8b08e6bad0f5047f0b896c7b403c0. 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/6d89c3a6-29f9-4351-bb9b-ca80c8a5fd35.json and https://artists.proofprofile.net/proofs/artist/6d89c3a6-29f9-4351-bb9b-ca80c8a5fd35.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 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG11802944.
What They'll Say About Us - Mellen Gi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6aad77ed2b99542ee82db2b971b0d5cb08bc549299a088d94934ee20919c82. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVR22400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. 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/USUG11802944.
In The End - Mellen Gi Remix/Slowed Down
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499721d85f43743dad6ee7f34464204f4a787939b0ffea52c7c8ce500febffaf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d5cb76a358f3fa83d16be40859075514af7457be011bdc1303cd73d9a2a9bb. 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/QZVR22300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82ba5eed1790b43a28bbb35a68e886e543c19231eb70cc957b87889603acdcf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUG11900514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUG11802944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. 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/USUG11802944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USUG11802944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUG11802944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da415bc490cac4beea03308ef84253a724fbf03cfb4636e5de21deac6ed3b85. 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/USUG11802944.