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 0x5199d1320214ebea155b3b539d3c2f0de5f3844beca53a8a4b798460ba6b6a00. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48d609d2-8ecc-43fc-a48b-e41ca76f9023.json and https://artists.proofprofile.net/proofs/artist/48d609d2-8ecc-43fc-a48b-e41ca76f9023.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 0x1d097c3d65b7929b66f87d2ebaa4b91081ecb71410ea2b09f721216052fc96e1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCADD1737430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e574a67a848afc4080f7c122320604675d43a7f39b2e6c2870e4116d3b7eb77. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADD1737432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f64fc3eca2132ab882a369063c5c6e1339d0c257b1e3677512957cde6841fa7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCADD1737433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ea03562819ed8a9d74caf1b721682b58ea274610b22bea00ad830e4ee2814c. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/TCADD1737435.
Tone Wheel Express (feat. Bobby Cressey)
Showdown at the Altarsound (feat. Bobby Cressey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6332ad516998f965a5aeb69c0cf0fbbc9a8218cd9370fda6f97cc3c04c0c6fb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADD1739460.
So Much Tribulation (feat. Troy Anthony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b66cf5cd1c9b6bd39eafcfcab1a251a6d778375e25f4976d3b3d85a421e5b3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCADD1700217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbed09c55aa3fd4f0e99ca40db9ed02a9121a9add6802193f9d702b597ccd3cf. 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/TCADD1700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeafec68ace4bc913c21b0420771e3fc00042c5c845d7f677577b31eabac4a7. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCADD1700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669332221c70c2a207309f05d0cb4dc63c29de321b8ef1b0319c33c6fc4b34e0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:04Z), 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/QZZ7M2507455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb0240a159db0c486b3ca6a0d9e1dc7878a14ecc63cef6aad38134fb87484d4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ7M2507456.