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 0x2fbaa031a49941f1d9b0dafd38ff964c70aea9c1788fd95fc51c2a701d1d4d61. 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/e6ddfa4c-bf85-4d0c-843b-80813e49efc6.json and https://artists.proofprofile.net/proofs/artist/e6ddfa4c-bf85-4d0c-843b-80813e49efc6.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 0x257241c04af7245c4d0c30f5f5850f4d3da90eac93eadd45da627c3a54795620. 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/SE6QE2170382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75591a38a2644db5c91e83b0486e8a41f5abc447a086cf2b4d3eede3badc88cb. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/SE6QE2170384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322c708f42d7b6afb88ce66287fb0c6840860457f8a6a20e259e8e88a012bd11. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/SE6XY2149745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa706dfaeebec418a63187d80b5f1ce3ba8dd469544c406fa681b0ac1edf35e6b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6F2364957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5050b66a2e0aca7bf1291aba75611b037a9c2f9927d0638d4a6f0454d8f8d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:18:31Z), 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/QZNWS2389410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd060338247ca6ee4850daa5f5549ee7919ca3160547abc4a40cfb6910d8ce3. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZPLR2326093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93183f1f74fe5f1285ed8331d8f81cbe6b9b26a70e6cbf2c16b31a7bcc533002. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPLR2326098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e445caeb031b2f0d1534430dcc484a216c456ddf87a28e5b85c65f8327a9f6. 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/QZPLR2326101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e94f874a20ba955d2c3c2ebffa72377793307d785fc836cb60a8313b3899d. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZTB22330338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a5dd15ce48d69f7f281d064f0f276b6d815d002252e0bddff67572e5efbdf3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:42Z), 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/QZTB22330340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c854a8ec5782891398d44da961bbcda611095cec2dea903e4c8ba8431c4f109. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTB22330341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286fea7fee40707795fac5bb0e55901f31f780dbfd5415707e97e7e7718394ea. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZTB22330342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2373a24ff036ee6c61d18e0801b6d6b167c1dd3d6898e8c87d8631cf525806. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:11Z), 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/QZTB22330344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bac942b780133f8ccaafc2b41327d1a3939c700a1017cc1f7ffce693c8eda9. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:41:56Z), 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/QZTB22330345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d7dc5edd0d6cae81537bbaa8081b1dd7f37edfa0fc26ed36b09c593a6c4048. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:11Z), 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/QZTAZ2389570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd2e4c5515d768811116f2fbbbe133ccc9bfcf8f92a1dc9fb2cf95b5975a07. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZTB72366760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f69c0cd543fd8a49d221443d843d7176a0b6ca46a6a0df7933c2c3231ea312. 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/QZDA42468774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0ca60e5c9e206efc799946fcf8e6d0b04370947fa79773f17952d0051fc9da. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZDA72409321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eead90d24eaacc4a1daaf321764780c90b5e344911e42791187518f4017821c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTAU2448366.
Mañana Me Voy Mañana (LIZAMA(FER MARTINEZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4342639b24b2171ec46201e65d1dd98e7040eaa7db32e41c8acccd4576f732. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:25:29Z), 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/QZTAU2448367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c6c246e7010900bb2fd84863c742f0e8fe22f60dd651d3527c21081df133a7. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:38:53Z), 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/QZZ7V2469097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356908b66665f3435f48d5c72b381badd0830b3cae9739875e051bcd30623746. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:37:38Z), 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/QZDA82594144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aa0b446851a1d444108269cfe6237d5d5c5f42e18525fe1d59250a18f8312e. 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/QT3F42518144.