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 0x9c7cc517f43de8b439717afda974bee5e8afdebc16077e16fce0b350e0aad4c0. 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/34d93012-610c-4303-88a6-e339c860e303.json and https://artists.proofprofile.net/proofs/artist/34d93012-610c-4303-88a6-e339c860e303.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
J'aime pas le classique mais ca j'aime bien
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 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBC19606252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Ich mag keine Klassik, aber das gefällt mir!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USBC19606252.
Les Plus Grands Airs De La Musique Classique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08223b5c2a2c5641a4d3f9836d974d74d1ac31af3ad530eca864503a6a3e355f. 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/USBC17200345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08223b5c2a2c5641a4d3f9836d974d74d1ac31af3ad530eca864503a6a3e355f. 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/USBC17200345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53927d372fd62595359e8a535e65913053557c6ed24036a07bb45c3b01c35d06. 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/USBC17200341.
Stress Busters: Music for a Stress-Less World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08223b5c2a2c5641a4d3f9836d974d74d1ac31af3ad530eca864503a6a3e355f. 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/USBC17200345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USBC19606252.
Je n'aime pas le classique, mais ça j'aime bien !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae7e70f0eba2955238a0a5f5415697232e0aabf78d2248d9e4fde30a33c5df. 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/USBC19606252.
Je n'aime pas le classique, mais adagio j'aime bien !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53927d372fd62595359e8a535e65913053557c6ed24036a07bb45c3b01c35d06. 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/USBC17200341.