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 0xa2ee7ac0f0b893f284f3cb5086c788e1cf4581764ab473750029db64caf4eb53. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/731ec3b5-dfff-4c5d-9dee-e18c3fe08664.json and https://artists.proofprofile.net/proofs/artist/731ec3b5-dfff-4c5d-9dee-e18c3fe08664.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pathological Facade (Ghost and Pals Cover)
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 0x37274e802fb7ce85d670e23d075514e74da8b260fce2861156b3a96239f804a1. 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/QZPJ32409592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec2cbd29579f3c406a81282b565f58c0a7bde9d7e6002e339744852bcd46c8d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZPJ32409591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638b6e3e301b08034677f40cc96a2625c3e789e444696ac875a64625d0da9614. 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/QZPJ32304539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdd30dbdf815a9579c46f3dd4ceb05f00b1416c4bfb742b29e295d0205ce91a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHNA2249849.
Villain (Stella Jang Cover) [English Version]
Villain (Stella Jang Cover) - English Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb141a43384da0ce77b55906748876bd92b6b3c722cc3c046b0fed03baa00ff76. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZPJ32168201.
Not Your Seed (From "The Guy Who Didn't Like Musicals")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cda067b38483fef48d904556c3ccaf7ec3f235e0443d32036f535f1d0e1b76. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZGWX2080134.
Let us Adore You (Reprise) [From "Steven Universe"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cd8a9fcb5819c5b1dc941a99fda20cde0eda8807601e8f55b06c307ee1be5f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZGWW2097232.