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 0xfd6ddfab5e015496c558781db466dc829700867351bb992981ca7cd1cd174db5. 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/369e00a0-cbdc-4d19-a24c-802a81515689.json and https://artists.proofprofile.net/proofs/artist/369e00a0-cbdc-4d19-a24c-802a81515689.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 0xccc5e03d4fe815d6e6635631b29979179009bf24b86b94e57d4467f39740a5a3. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:19:44Z), 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/SE5Q51900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce72a7afb7099c4b303b598cf67d5f21a566fe5cba181bfed6592978465b7b19. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:36:17Z), 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/SE5Q51901166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc777c50e12ca82b9bd44420b71a43b06bf56da0a0dc11ce432b9d18f5a4c35. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/SE5Q51903998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f41e01314f5090ee2e0da7e09f576d4393d08ba57081f456c8748fad876c389. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5Q52000723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb272c61e478c7d954f005cfccf07b64e847a077bad8ab474b9843c936cc599. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5Q52003509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6668a3ed5da9eb0b5ec4bd7cec4c04ff8cea89b2dd69bc9e7057fea512fbea88. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE5Q52100649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ce9255879e78131c489663c48eabd84dea48e64ed0ea863fee5c080bde1b35. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5Q52100661.
Epidemic Presents: Crates (Abel Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e41566032953bd54e5052edc9c2c4968371ce691e176bd81b43104baed51f9. 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/SE5Q52101099.