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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed95d1d7348bfe0c95e87b77f2c371d8aa6b00191bc55dfd100d37ef47fe5ce7. 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/b47d5b73-be19-4481-ab97-5f0803177473.json and https://artists.proofprofile.net/proofs/artist/b47d5b73-be19-4481-ab97-5f0803177473.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99844a345f6f992873b7f72d2068f7b91e249b4929559c052f1cc8866401b423. 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/USUS12400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d059975ec0062a382efd958a84d442e35a12eb95807a29d052b1dfa4d51dece. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72307826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe01b3d5d579bbf04db9cc1a9baab65b443c99aa5ebd11f3a6d2e60b4e441d9. 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/USUG12309805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd1ee503264451dda38623749541bad445b7cb44765046992e04da3c6cb0e05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUS12500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9ae11e161bfd3f679343185ec508ee211c781168488379d342d276b7db9162. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUS12500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aef59546ecb89436a619b4d450f2d3f1f4d1f3567289f69ade3b4869a41bddb. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUS12500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8693389be39ec705c1c4f3ac8a28ed92ef595e45bcd7c0dd544067d63dcaed92. 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/USUS12400615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03060a8379f425b7fd05b9bec42af702a5efdc77662424b1859399fff2321a38. 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/USUS12300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe865b811f4861e90baa26fe6a699b6a0dbebe37c68fb96faef77c26f442687bc. 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/USUS12500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680aa4565a624fbd824d0d4e0d0efefa093096f83ec37cf93cd77338874a441c. 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/USUS12400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3746ea9ea44768650f49de4f1e169de0100e08f2d685281f4f1abb5262d33. 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/USUS12500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08ed0873316f071fce587dd7dc883908a709c45bf6b8b7ed6b2375dcfa8db94. 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/USUS12500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537488ce8228a3be58ab1467602ef3a23959211897bf72273b4255ff359b0597. 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/USUS12300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf46e72d06b41b452a47919d5a1cec817309ae5d84232b4f7ac72909f5ed22b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA622501290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd9c10fa36678f90c6cfbb1c621e80f41049968fdc5542fa44db4f7765896b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DECE72102915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862c0379dd9dbae3250c0c3c367c720faa9a1fd8f30620e970e318a659b83347. 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/DEZC62024216.
Regrets (feat. Nina Chuba) [better in my bed]
Regrets (feat. Nina Chuba) - better in my bed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddad68ebfd2faa929650ef288587b9856314c0429e4e4483adc128cab5784fc6. 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/DEE862001990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dae19d09a800afbf2a635a80c5df46f405f8c42ebd5dd129d8dde3839c8398. 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/DEE862000911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58249f581ac059a1da31d286c7693aea79ce66f42451d9de0ca7ba808796d7b6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEE861901204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa776acd2e18b47ec0b31579ac2d42ab9db979bf3977f2162e0a6298430a5283. 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/NLZ541800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58249f581ac059a1da31d286c7693aea79ce66f42451d9de0ca7ba808796d7b6. 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/DEE861901204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc414764004df34fe14de9fb08cfd0f91f890e13074f3bbb1e9945e408e2fdb06. 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/DEA622301630.