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 0x6a5510f688a215af9b5f3ac26ac256735099fd7011606ca9b6e071ec334b2b97. 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/ecf99d1a-8223-402c-a44c-a909e05cb90f.json and https://artists.proofprofile.net/proofs/artist/ecf99d1a-8223-402c-a44c-a909e05cb90f.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 0xdc7040899ca19e9ac171a02da56bcaad2df6715e93edda0846ce0ef5b679596e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6M2146710.
Moments (Live at Marshall Studios) [Acoustic]
Moments (Live at Marshall Studios) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feb3f33c0929077e03cee829529438e500ea3918f4a90d92ef6139df8e4b6a1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GXBAV2305710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60d8e59b2a1e8b3a7fd20ed571fc3da9445909b66cf6015230a673bcb0ec506. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:09:01Z), 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/GXBAV2458958.
The Ace Clvrk Blackout Session (Live acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12284e254fb40c92e4968d5c678593cd3937a64cdd1215fe2d284d5a9b7ddf45. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA072461092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa827fa771b47ddc653fa29f0662eb43929703c154e350ea169b52d34001ed68e. 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/DGA072461093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4375b6ecc161bcacda1de49076d6de57223c7ddcb3d0df4a7f5f254ccf8f5338. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GB8X82506804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168afa9671b1414878e2636e9d3bb85e968a64d3727edf18982e14869b9992eb. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/GB8X82506784.