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 0xfa617e147e8d608e3632c580ddef86ec9c3e591d88a76e00de979cae1bd6d885. 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/7a259ac3-689b-44ad-b677-6dd3c747e770.json and https://artists.proofprofile.net/proofs/artist/7a259ac3-689b-44ad-b677-6dd3c747e770.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 0x12c8d6adf857a634293425d2f08456324074c29f74eeb8165bf29b77180aadfb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWZ2336741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c3db48c7e29bd8b7a4a9fa70be1e8d6a9ceb96efdfd6cab0d6f8b84ecb9a2c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAY2328118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedec94487d654d5571b1630eb74bfe60ca57dbe05d90831d04cfe986cbd788a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTAY2328119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a87490d0793b3518cf5dddc0a8cf823fb52b46d72076938aced1e517669d31. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTBD2301516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347b1d6aa47429c982e63364fe97c10816da5332d2c9f9419ee6afd3c9115d4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTBD2301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a49ff546315abdbbd31cd0ee7815df47cb37aa8bdf4df8ec4cd33e51866258. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZTBD2301518.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161a1cf42e4973bdac8fd5fe169fe10f92a5b2595a8b7924e18e2207a8fe8401. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZTBD2301519.
DJ RICKY PRESENTS: CERTIFIED T.U.N.K.K.E.D! 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72ec84f243bb8e00a59d8f535aa863d7346b2391f33e9c82d38f12804c67937. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZWFV2483421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ded54e65499baa9b0905fd29ec9f069b11e46605c4f43be8b902c0c612c2d6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFV2483422.
DJ RICKY PRESENTS: CERTIFIED T.U.N.K.K.E.D! 2
DJ RICKY PRESENTS: CERTIFIED T.U.N.K.K.E.D!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d4b904d3a23557d43b5d8b7b12f5df85eda14795de5b4a33cd85a3c9628ba. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZWFV2477307.