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 0xbc12789d841f81a912ee8bcc0c406e3784a288a18fd9c67414e7e90d76317b15. 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/d91a2f87-87df-45a5-b37a-a36ca3ce99d0.json and https://artists.proofprofile.net/proofs/artist/d91a2f87-87df-45a5-b37a-a36ca3ce99d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Day in April (Original Motion Picture Soundtrack)
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 0x08c0420daa505acc3a0bd95c3faf7fb69e1a900e159ac0e1a36d2d11aa2a65d1. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/US6WP1500004.
Women Of Faith Presents Gateway Worship Revival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70a808949079ede7ae9ed0ea58f1a547a2c498d47b42a2b3d844a4567a50930. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US6WP1200002.
Holy, Holy, Holy (Savior & King) - Studio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffdb04aca83e7e850f5b3a9ad1323b03fea34f2e12626ef23726a061d5791b3. 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/US6WP1100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0530bc4b353b6890b11f97c3c0b0623fc46a080248de76a0dc1d2047ebb0fb6b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US6WP1200013.
Women Of Faith Presents Gateway Worship A Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd8428bd3132679147afd86cbe29ad9d6021a85566d10e02ba982f53d996d6c. 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/US25L0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70a808949079ede7ae9ed0ea58f1a547a2c498d47b42a2b3d844a4567a50930. 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/US6WP1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b8ac0ca991d70551f62088c228f92ad026ca112e10b5df15978b3736e8c4c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US6WP1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0530bc4b353b6890b11f97c3c0b0623fc46a080248de76a0dc1d2047ebb0fb6b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US6WP1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe350b19ee40d00c913d2c7efb09a70ce7b99b3ebb655b6e35c0841e83513ac7. 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/US6WP1100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19be7bc0f37cb3561b98cb11b1d239ce516b741c0205996c42eda6bb578de613. 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/US6WP1100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce3b95b3c85f1615e2d7eab0a314d7dbc80aa83bd55787849ba027b3db2bac8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US6WP1100050.
Holy Holy Holy (Savior & King) - Studio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a7a54583b875b2bd24b3367c2d301033cb855867233143fc64dd20724a2822. 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/US6WP1100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3913807c2364c18320cfcc4464d4f4aea6258902b137a6a6d83c8c98f58c33b. 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/US25L1001855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f383df4e078c55d3fcdcaaa9a8248e9d77252b9c00540e8878fdabb42296c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US25L1001856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e32d88a9fa73b5ad720007c219dc7404ef6263a8a7f328ea03f6909a1aaca3. 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/US25L1001862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8525bf66a96a45e30f820b8c471215c7eb7c68c90794186124bd95bf03eaf9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US25L1001864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6e48dc05ba51bc647bbd3e1b9b0441f037c9b6b9b93fd4eeead13a95943056. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US25L1001865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd8428bd3132679147afd86cbe29ad9d6021a85566d10e02ba982f53d996d6c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US25L0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9d3c313654804dab57366fc0300bcdd8abe5feeca7e60aa38e313dcdef20dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US25L0800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25011d4432539cc954d1e9b340375f1653ac36fbf3c3a1da7e019f0d3b6a3844. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US6WP1500007.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch