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 0x153745be48790e488a9e13e8182d42bc235c95460138e4f927d6b4c8e2605c5a. 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/3ffdce0c-b49b-4adc-91aa-43162e99a07b.json and https://artists.proofprofile.net/proofs/artist/3ffdce0c-b49b-4adc-91aa-43162e99a07b.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 0xbcab8ed7bed598678d9f330dd1e455a353c1a0d2f069f859aa5d4f93395bb5ad. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:47:28Z), 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/QZMEP2277861.
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Fuck Your Boss, Feel The Vibe - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef68968a89185bf288bcc44faaf62910c566856f580d20bb548f2f9e823b6ba. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN52362983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb2aa1e8d946cd30676144467fb4fcc8280a1d43b865ed3f1151f299ca47f5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB32340638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e70d5855b7079a00a44662970c6183a4a75a33ac370da95bd12682870ed3645. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZTPX2420314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864038e1c232aa7f3b77cd55f50fc067370d1bbdb1ede69d4fad5296240394d1. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFJ2550929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b25b25883733823eb06d892fd7e0f3e4bbdd973aea4d43b722c541c964e4e9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:46:36Z), 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/QZZ7K2548604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a0871c468ff189221845455af7087b2c50ee6b1509c42c105b0022e7a5890a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QT3FE2511514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1487d9ddf90ecb39e96388bf96580a26415afc6b5e46dc189cdfd29a8c7fa894. 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/ITB842200660.