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 0x718ee1253b2ed19f4610dbcb0745f666b7fe3e390148faad84fca05f94a5b563. 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/fce49c64-0a85-410d-b0a7-cee591f06771.json and https://artists.proofprofile.net/proofs/artist/fce49c64-0a85-410d-b0a7-cee591f06771.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prodigal Son: Season 1 (Original Television 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 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 0x2d80c6dba3fc1e646e514ed995ca74aa041fa7b560bc36336c4eede768fd40e8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USNLR2000466.
Prodigal Son: Season 2 (Original Television Soundtrack)
The Flash: Seasons 7-9 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755c0306511f619b49369356aa661debeec5e5c0add6987ceadb666f38a71527. 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/USNLR2200759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72352a75b3bff4d20dc63a0b45ec4f4e6339529156aa205caa86bdbf7e9acfb8. 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/USNLR2200760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d633317c56e2c4e7e21e89eef5b8feebc8316eaaac690db2d9f3e8a2a65485. 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/USNLR2200761.
A Villain's Redemption / The Strength Force
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba368c25d68103e64fa4dd00365865499c9bdea46f37e032cc11bc2440d762. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USNLR2200762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ea6183388ad058fa6263a672e676496ad1d14b1656cb741b44ee83ff318fcd. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USNLR2200763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f629608c047cc0649191ce1c0ed42b1a98dc1e3e256dbfa639c3cdef95860be. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USNLR2200764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa355d59ca1155a86513d0d55045b6cee19ac64e88923aefa71a37d957fdac83. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USNLR2200765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10def49684912c2c7e4844a1753f17547e8db748c3ac313898ce55296dbe89f. 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/USNLR2200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f4462c9fbb1a5116daf4449f3300c8bf812a8b33ce7dc4afa6cb07395114b8. 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/USNLR2200767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0595ade9d6860133f1f6050c9599b367a8c618862964c71ff9c49bea59d343. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USNLR2200768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3af6fa855846e29212b61afde4252e562f3aaca8a6ff684167413bbf120dab. 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/USNLR2200769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f24d561bc00dbf4b4f2e4d3d0303b208518bc3dd635123c9b3a0e2a39dd2c0b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USNLR2200771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c1b89e522ff6c21e1135766cc7fba79096dc6c0d6474800359bd639192382. 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/USNLR2200772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2360f6ea6d57b0c92c0100b9af77aa5fab5f5c7e9a6e03498c08e4bf8ab92db1. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USNLR2200773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc36a0364dda157185acc175430858415cd2371911bcfdd4a2853ef4834bcf2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USNLR2300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67525cee9d1e6e6835d6f929fbb6ab84acbcf92567275f56150c6640173ae6b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USNLR2300567.