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 0x9be59d8f29444d40e20631f4c052454f986a3c9febd352ce580e65ef762cc6e3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9790c7c6-8854-456f-b362-5b81829264c3.json and https://artists.proofprofile.net/proofs/artist/9790c7c6-8854-456f-b362-5b81829264c3.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 0xfe10720ae85c0b83daec170d9efec98922fee782462a7f139ade8240cafa4493. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNWT2579414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5958e5b5a16e7168549922eaf6ec61882782eaabc151241dcddd4a676f2ad4. 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/QZNWT2539367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71fcc16ef8c005a39c585208ffc27aa305344f9761603ff2af2463ca9944bc7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNWT2558398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf528c168ccc870445afcc0a7b8814453216f936f67c548e94485d6e31971bea. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWT2547094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b809643e3e0bd90acffc6e29b995e70096afcc916fa01bba7e93f075c475a8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWU2573074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9444f5f843fcd5b4cb5490053873b2f460e66d41fdd691135c26ff26a89b3d6e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWT2555024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae927f1240625e381c80493e45b59407bbd44a427eacf513d9456549e80cf17c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNWV2500345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c41a1493e170a8df3be13d6d2ab6232ccf2d09cdb51469d060227a7145b9e9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZNWT2566477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ed7ef23a1980654e033b70ae2b743f1bb8e72f505c1a9ba9dddc4b76e2520d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZNWV2506392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae39178a21ac64f73b8995adb91cff9739fc58440604ba7faf7d4e3466c0790. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNWW2585751.
En La Punta Del Huevo De Pikete - DEMBOW
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f13cafa9610a86ded58139558b3351c82bc03b715dfd25423234cd936ab45e. 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/TLVEM2485407.
Jeeto o Patel - Los Domingo En La Victoria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413a0a573759eecb21488e9da7880a9bdc18fff8235b5e141ef3ddd418deaf43. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2588937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf309f4320e7bd0d8f6e0aead636446dd9a935d9bfbcbe4fb2a728419ca2586d. 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/QM6MZ2580007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5172ea79443512627131e1f32b261ce15f578665779ffcba13554899e9bb68e7. 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/QMBZ92405142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0645bfd133de5073f04195939cceac6623cfca76bffabdbfc5e6cdbe6af706c1. 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/QZ5FN2134805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7014a4a9bc19091471cf21cbdf7260d646fa764725b827fa3845caf3cd160cd1. 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/QMFME2078442.