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 0xf249c4d7a3d8fe8bc8de62e892ab5d2ebe57fadc0957874bcc09510127bea9ca. 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/4020d281-9385-4046-8411-4cc8ed491338.json and https://artists.proofprofile.net/proofs/artist/4020d281-9385-4046-8411-4cc8ed491338.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 0x0ca7404e11c1abf3994db0a20f43d2e3a513001f2f62c2da017760ce04d3f8dc. 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/QZGLM2041840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d858f51ed7072c7239e089b8105aa5d5eb1f5617329622462f18a0b5835645c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZGLM2041844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb979784d58efdd28457c3d2b582f0ef01873a82197ef00a7c832b6aa1188ec1. 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/QZGLM2041846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357525010f6a41080ddf9eef8109b88f8e9ecb7f936afcad3e968aa2b1c1dfae. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZGLM2041848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aecb98bdce85398e64d7a1990ebaf71ca3cd383a5235607faeb12f179c29454. 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/QZGLM2045597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29930a8f574fe613b9892ae57504c8956bc80379b8bf406d14499cbd04b4b427. 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/QZGLM2045674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe317500f6a700d0b1f48329262060d7b8da3c90823bb22cd8e6f1e671697bce. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/QZGLM2045736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b55c2a588e99f0dbdeea5f4ebb221f7a83f95cccfc84dad38a1ed4dabd75f86. 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/QZGLM2045737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69c9360fe0aca6d0d575788cd0537d882e4eaa687514c556409085ed052f015. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGLM2045738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fc9b2e9e7196f3cebb252d2024bcec7020b6a99c6ac5efbcfba1e53ffeba3. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZGLM2045739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944368d3871b22b735f067ff8078f89747efac3a39ebb980f9b91359d148d37a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGLM2045741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf89603fa082b1ea0b8074ebe0b229b3d7d9f9e34a2a150b7a4053e1cad0d2e0. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZGLM2045744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12d0da2ea66ca07b349c4fec1aee3bea17d98b3a1ad6d1f41e81203eac8de60. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHZ52090623.
Ezequiel (Vale de Ossos Secos) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb5a64f3d9604216b38dda817efdd8de35e9f6286393a51d0eb6b0ddd209761. 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/QZHZ52090627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0dd91cc8da74963a3f8bfd44bc06743289e5e4dfce52a56515ef001501a4a8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHZ52090628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf352451a4621601a6734a60309272308fa03bfe8c379c6b139dff4875e83e0f7. 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/QZGLM2058384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6928f769fed05f67074492a782c34ded32344ac7ec60bd3b6449fe3468c2caf. 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/QZHZ51919234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db1ec7ce1d43fad70fdc2d07e81c12c1ccf0f887abc03c5c96e52c7e0f1b4d9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHZ51919239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41797c3cdf4650f11a201b2e1e42fdaba85a90ccfc98e838b0eef9a71b6be625. 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/BRCPU1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21326a6dcf4ad500d7e008e080489b7e2139196c19ad593c33973c280b869d34. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRCPU1400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b6883c0aaf1b24c0ac807e48356f038a56776166627896f5a575cefae58f1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/BRCPU1400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa72e5af394aec77867ea070fbe3c2aa6763dd7092458e49781dd76bd7d83a95. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/BRCPU1400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbb3eea0ffba769cb8b111bfccb6e6b23dbfb03f5437e74ce2963486e1114ba. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:25:51Z), 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/BRCPU2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4144f33a3657375cfaed710f9ffa25572e4c463ab32952ab1a3b63b01c8bd0. 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/BRCPU2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44b5cb4fa879e491014d9f8b6ffd82e10cc3fd9d5aee41c1a642178a58abfa4. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:02:53Z), 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/BRCPU2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6664dd08f27e310bfe779e0bd34c37159102ec242ebdf5404069fc2c6822ff. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNJW2180987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf676bfd0a85302c72e35681ade6eb52c4866d8012c3a48c40f8a66a4a73cd162. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:50:45Z), 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/QZNJZ2290913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f162ca94bbb7f9b06e6ba5d1db64a2119d237864d6b62bb5f934b48cd01c1d. 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/QZW9M2367059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7236a6a40e3b1bc863186d1f23d34eac556e4d44da7d46db5c5f4ebbb071da9a. 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/QZNJV2592284.