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 0x15158ec8fc6be17540c384317fe1bf82ef576e4961c2d2f9f28e0a43e6869d6d. 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/ccd78cd1-6050-41af-9a3f-7cd436d73e88.json and https://artists.proofprofile.net/proofs/artist/ccd78cd1-6050-41af-9a3f-7cd436d73e88.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef16cccb238a6ed60113542a0205eafcd13867d242e8fbca6e9adb87593c5c6d. 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/CH7812241356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85a279cc43e1d1982a06a45070b7189ecf2c7f1dc85da3cc2d53ae8beb63839. 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/CH7812410685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f99c147897bf4d24f4573b34d83ece03f3340591e82f6010181358f86ae9af. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7812410683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0608c74f67da202892807f3ee96df581bc8129a5d28c004676c5325f92a711. 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/CH7812410744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96754dbae1176bfe897c6c7486c865d53f4a57aa6c97b272dc47c571d4c462. 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/CH7812410742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd09195122ee37d10aecf26444c4ddc86e8a462bfbf63f634d6604d79cbbc5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7812410743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb942254d76673721be8ed6820723fda28fafa1df1777e4f12ec79cfe0da7f711. 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/CH7812407876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd31ac4ad3d61fced0e6f26efca9f793568f47a512de5cf5ac44689780bcc36. 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/CH7812424329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3e6ad47069db42a997b11a559485d04cdd9b0f67c7a57a19cc8b8a304ee93c. 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/CH6542246242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275dc8e0969d9be46d06583e90578cd26ba94158e7a8a23d7f4a8d80a4070207. 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/DECE72203243.
Cypher (Mowgli018 x Emenes x San Andreas x Kenan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f6588d84a02a111e77e1cb6a58ca561a8d1d5dcb9b7fc2f4f86ef07669289c. 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/CH7812225977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcc927f79531000f809a5fbe9eef054bc1dd4f4e61af77a7e1bda3ad27a67bb. 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/CH7812421318.