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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787ef8c153e2f0f046ce2c568e9278d78684c4bce6ecf8d4c1ddc235ac871e7d. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65e6e1f2-8216-4218-8536-ee71835c3083.json and https://artists.proofprofile.net/proofs/artist/65e6e1f2-8216-4218-8536-ee71835c3083.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4983e13576cdb86a6b54145e409ae1822fb3b54d7530061624b772cad6419ef3. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/US25L0901664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3979e45f986592129f3642e326183df2138cb538fb867e7fd2e7a0f2fe8a6d2b. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/US25L0901668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8517c5509e612b7e08609f96e02a51c41c26b27466f7841d4823fca9ed958675. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/US25L0901671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e4a73045288c0ecb5d07f607ca01eaba709f0152a57238b64568d908258b70. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US25L0901672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a58c210124e7435bc7b5f59c9576e3f29cbfd69581ad37ac8db5002e38bd35. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/US25L0901675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25fd542218dfbe38f5ea09ee99f0a6c84cb0dd0809d89448838641d32592ab7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US25L0901676.
Be Still / Holy Ground (We Are Standing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924d8686225c228875b21cff6221262b8cfbfc8487d147ea6fddcc3a9f2ae76d. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US25L0901607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7775217905a11bd9bc5032081d6074b398ee8c0ce8b95d39e61a999f30d62f30. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/US25L0901608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f0a68c3a3dc81d61792e0cc1b312522a6b39c8bd414c3627d73f08481fc0d6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/US25L0901610.
Father You Are My Portion / All Hail the Lamb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f516cbfe8f7211a8975167f2697433e8740e1671d6ae6ea6dcdd639390d951. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/US25L0901611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b74b0a4c80a8c1943b0fee3676e8e69d4f2988ffbe8ea80ed5a20192acaa8f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US25L0901616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd934908129e62dda4bb78647460f8becdbc7e438c720303760bbedf16b9a61d4. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/US25L0901617.
Interludes: Bethlehem's Treasure (Instrumental)
Interludes: Bethlehem’s Treasure (Split Trax)