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 0x70a3d275a36b6757b88a2591930b92569163ca6a60762bb4f5dfddab370ca476. 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/977e9aa1-552a-4dc7-87b3-577d658aa1e4.json and https://artists.proofprofile.net/proofs/artist/977e9aa1-552a-4dc7-87b3-577d658aa1e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xab88b1f0b12a5d631a2461ba1191d088e32eb28cb97da8137a1e36af11947396. 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/FRX452249662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ae72abac90b4e7b7664b3dacc3dcfa9083e86cdc40d28a6f032e3fe5290929. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZTAX2286273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24193340fee7dcb896775fd6784ae88bd47e0cd6465830f1a787af2d6e76633. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2203764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e04c5e16ba449119964d1c43f91d398b246034d8da4ec389b9c7c628af7fe9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:47:37Z), 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/QZTB72229441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298629ce3cc63f332176e83f889efa5934543a5df1f5fbea88caab7e9a0eea9c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZK6H2360750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1446bb47254d1d2febc701b4e5b2f8c6230d9ceae7d1495826b87416366c1b1b. 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/QZK6G2312068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1acd8f7cc215defd90b65f9e722c5cbd642242af49bd51d8b93861c8ee4129. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZFYZ2309702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c862cc0643a5bf98dfbaf92788ee25560fee9e74cfddb8d1f88db7d94f9061a. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZNWT2330460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfdf2b9f426ec3b2ebc51bb69f01684f268ae09d5d7165269a06fa88c7b2fd6. 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/QZNWT2330462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeee74ef8eaf03d819015e2297e06c0246e7259f32a4efb5eaf0d189acc335c5. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZNWT2330463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de9b81ef956950a4592069f055a07d4d99ba2b48787d6184fc73475fbbf7cc0. 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/QZFYZ2396784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51fb1fbd16970fb0f4844f94b59ee498d959a92cded5b7ed19c9bd391c70f7e. 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/QZFYY2408546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe753fd9cba07e38d39b76bd46d27d4971938cdccc9a584e1d2c380c224a015c4. 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/QZFZ22462577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e89da29663864cc1fad08b28b30a5edf9920b199adcf1be0e6d1a80aba27f8e. 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/QZHN92427168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf6695e9d9bf954a37cff0abdaf2dbfc7c3dcddf382707412754b3d1e176d1f. 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/QZTBF2408105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b3e5aa884f3a5191e5f4d0a0c6a6ccaf39379a2d6e859ea253e51cf8cc2031. 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/QZWFP2471279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0254ea80881f92f895c847db8b0b6ef77b7ea656c1189a563f5c98230047fe86. 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/QZWFP2418626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998d5b569b38dec0fa1fe1fbb27e1aec2def9bf2c5b628e4eab1c3982ad9bc7f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:54:43Z), 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/QZZ7N2460938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906ef00a6d0b0e6ac835ee452a2bc81860f146661c3c35e83369f8f490c2fa50. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:11:38Z), 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/QZZ7N2460939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaa0a12145ca74d2051209c2fecf1cfd42e10d6ec64115fbf385b92e3e980ab. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZZ7N2460940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5764a328504102f7a53323a0206c2d865b149cc84a30144a9c93ceabd4ef00e4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7N2460942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ac47f47f7d0be2ccf4b40e4176e6c1e6b6920bc1e98e2677eac92b0a2e9df7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZ7N2460943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3172e5c5aac8ca45953bbf5a3331fb86ba7460164e81471be5b4b88cdfdf66c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:17Z), 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/QZZ7N2460945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec75cbdaea1f652e18c4d7e19384c35090be4b7c13271b3421843282f65aaf. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZZ7N2460951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a5ad847458e304fb44afc9200ddb9640488f8d81de73a332ad990f069ebe8c. 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/QZTAT2561332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d48522e714841c91e9cf14658ac4a9dc1800a6f2f0f6fb27f7a60bc8939fd6. 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/QZTB42590841.
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Glaube es ist Liebe (Live Techno Bootleg Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843cdadf262a9754be5002fe8fcfad674080556e06ae3994b8a0a014eabf9597. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX282202083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6e32dfb67727ddd3a549d24d8d0dc234b9c453dbae8f53cbed477b0fd534bf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKS32100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314adcf130738a9cdd39432e6681dc3703c16f44dc0674af940dc70fc6bf7e78. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZPLS2273180.