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 0x531695ad6d9eceee9fb32df777cdade35db1a0f051aa54e732c8e106248f4e20. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17dbcb2f-6e0d-4004-b91b-f7e34442b42b.json and https://artists.proofprofile.net/proofs/artist/17dbcb2f-6e0d-4004-b91b-f7e34442b42b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nightmare Time (Original StarKid Cast Recording)
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 0x08a1b92c13e3e25d1a2e136a65ec63523d3a03b3c05f93f644dc883794bfefa1. 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/TCAFJ2173618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5842bd14647d7cf06d06643d6c474e5aaf19b7ffa8411e485f5ecb6120afba30. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFJ2173634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6563cf0f13c202a054989a1334fd45158041024fad812a6a08096d462459e53f. 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/TCAFJ2173677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec922e6ce53b8bb0144e63b1ecab19173d94150507be46def6e1e26829d3979b. 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/TCAFJ2173688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ba72d36430b5724733b6e6fb8bc6513285c51875471477e4b92aa6ad16d1ae. 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/TCAFJ2173701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ce9a165cc40371e057dea702c559522215cf53232dd4d430bab2eb1c61d595. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFJ2173707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3c4ef1044823ed2a43f2ea3d87f932b46219f68827d0c55ae8cac28d83b2f1. 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/TCAFJ2173720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ccec99988dba59c8960116cb6b95955b09ef9a59e2bff2872f7eaf7e3ccd6a. 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/TCAFJ2173734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aafafaac08df166b4d42314910987823e32f7e281cef5a7a0062f5719e3da4. 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/TCAFJ2173753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2023f3e8f97a8b7adfdce5ee8a40627129ddfc6f8dbf2742159b165f26e60b4. 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/TCAFJ2173759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95653c569cd0719f4b92c5e5e11ab7879402d30c908a5c2c09625addff7a92ef. 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/TCAFJ2173777.