1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x365c54b170ead17a5344142cdd43e3b93e2a051960371461f15343a09dfbe1cb. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64ed4613-ff41-488a-903d-859d47d57a1d.json and https://artists.proofprofile.net/proofs/artist/64ed4613-ff41-488a-903d-859d47d57a1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freestyle Daymolition (Spécial Rap Contenders)
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 → block OTSBitcoinBlock must exist at that height 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 0xb71e376a018bcc2eb2a44fc1e1b108c84a39c3a6a5b41dd559a3510b719ad3e0. 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/QZWDD2210862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa3c944ac2ef6420a271befd5b8bcddbcc0298cafbe375d1074bd160783c67d. 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/QZMHK2095832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f4dec3c6db6d890ffaefdaac748ce78f89ca2b5f7bb2a9ee5753cc56623253. 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/CH6542016806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9e061557b57b4c3eecdda1f380d25953ca0be3be6c459f03091de4539cf7c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH6542016805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc8bec110e3afd59674d60ff4c4fd2cefd3e208e940a7dc1650ea5ec2cc48bc. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CH6542016804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d34f2dd6a13d9f056631c73d85d9d9ffb7a991373e8a2790a237854a49308. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CH6542016803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e2770dc07ad134282d2cb760b841eb15f275912e32d74b83e766e0c64a0f75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH6542016802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c700332f21d5a2d5866cc02142142b7beb4387ac585763c1c923e6046ed174. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/CH6542016800.