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 0x139eace6ecc779774ef444dbf62396e8ee9e3275fac4f3b7e159637be9f31c04. 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/5e126e15-ac17-415d-9a4b-71816e0d5f51.json and https://artists.proofprofile.net/proofs/artist/5e126e15-ac17-415d-9a4b-71816e0d5f51.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 0x83c1f4d2635080aa92cb9a7dabe30de2b0d9b77bf27861a556491261711489d3. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US25L1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6933b47ce05a4c3dc6e06f8741b103dcd8a4b300b95a548756b8a2fd4d3dca66. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US25L1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49374e4807ed06b3ce0240fcae2628fb9ae1baabc4cbc3780912a475a0172d14. 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/US25L1700351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed971e32a1c516bded03c248f207dc09c28ea5bbb76abca08a14e79fed1c199. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US25L1700352.
Instrumental Classics (The Collection - The Blue One)
Faithful God (The Collection - The Red One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7de4ec91c340a2b5eee52ed37b365e992ab12ba5920c7c0f9703fd5b0a2c31. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US25L1700362.
Personal Worship - Intimate Reflections To A Faithful God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4331558e67456d96e4534c6add29fd9bf368af8254ac8c4059f4b9f91baea268. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBBTM0781103.
16 Biggest Praise & Worship Songs, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb0bc0d9ada573f9e892e2ca71a29eb4122363fee1032cfa1c6bc0e750d1fdc. 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/USSM10210924.