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 0xb23780ff3b70f9afbab17c55201a833774143be430c88f11a23be5a49f9ffc17. 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/d553c201-4f11-40bd-99d1-40390bd41aff.json and https://artists.proofprofile.net/proofs/artist/d553c201-4f11-40bd-99d1-40390bd41aff.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 0x5579cc40b14d8727b2b493776deaa40a08adbc1584062588b8c12a69027a9dcd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2485033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45c4fc13afe29dce517b99a540b098b02595aa25326c37e8b7ab448305bd36d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2479256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9b40f1dfda8faf89fb73268968056029e3f3748365ed670f3d499b292f1b15. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FR9Z62400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5394893a201fc3ef2ddafb584dc88d7d5cef63f37fb30bd15501d70c12d18. 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/FR9Z62400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc63ab1da32506df63e630fe8451d788633f87df6178b866b72ccc36312755ca. 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/FR9Z62400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92340ae5529ece506d602036ec9f8fe22fea99787738f4f62dcfb0c78434c43b. 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/FR9Z62400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45c4fc13afe29dce517b99a540b098b02595aa25326c37e8b7ab448305bd36d. 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/US83Z2479256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9b40f1dfda8faf89fb73268968056029e3f3748365ed670f3d499b292f1b15. 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/FR9Z62400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5394893a201fc3ef2ddafb584dc88d7d5cef63f37fb30bd15501d70c12d18. 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/FR9Z62400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c81b20e2eaade169c057a6cba587b5b437c929d2c118675bd36516a0decf56. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0718ea45c2e10983c730f4416eaeadb656540ce30930e74443beb9ebcbf9ed1b. 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/GBKQU2379742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df07606f4c386ed29a537eb80863f403c84f1d6391a0898771c00fb69caa44f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEH742312526.
My Club (Damian Rausch & Tathagarrett Dub Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecf7332b9a01c93eb3bfef0e06ee324f09cec7c430bde83edff144f30643b15. 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/US83Z2321648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2769ea6b5eaf9e1f7456837a86a5aa45b23baf8036d533214563f896514368c5. 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/US83Z2321649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885b6189f40a20b387ddba874222e3f90a2e5d892aad1a2a0b0f0867cce2224. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2303481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb175ea8af61a88dc33e85920a8aa16f1be8b9b6f7e678c5699222ea2c195eedc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/US83Z2303479.
Me and My Drummer (Sven Wegner & Der EVA Remix)