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 0x72659531b78f9ac3993efd816f69df1b0bab675d6adac5907aea0117e49082d4. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8e99fc0-66c5-416b-9471-206df3e76362.json and https://artists.proofprofile.net/proofs/artist/c8e99fc0-66c5-416b-9471-206df3e76362.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 0x6ff0aaaf869dbaa6865aab3501e9e0b197732ec87a1acacb9f9e3753943e4ad9. 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/BRAGL1600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4e776afa18a1ceeca035d00c3e8660ff93a472be6483f07d8594529aae5b20. 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/BRAGL1600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cd95c593922f2968f7fbc8aff4450371953c3c00b7176ad14374a883acf989. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRAGL1600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689ef5633c9d0aa1aa4aaa2a23b4dfb46f19f66d3cb8ab33da06d37357f40570. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/BRAGL1600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc998e84310f6a6d7c6d3d804acd1d79c2a06f0fb53a49c6046b59d04014f2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRAGL1600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4533b8d0898315c50437250dddb8c64b58d5ea7a3a29145fe7cd0c17bdef7fca. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRAGL1600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a075fdd1bccce0d55d9e55d339019dcbaf2a4c7ecac423dc2125910163fca. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRAGL1600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab69b8d586fbcbd8e8179a9da5209f2174ca4f0c6abb3841109c69fd597aca91. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BRAGL1600085.
Canções Pra Macho Chorar e Roer Unhas (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2ae255ce128a99918c4929056318a98895e08db09890412e21333637c9ed56. 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/BRAGL2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e553d9fce0a12d1cc5a0d03a44c62d1b9108c9b2dc83a9efbbacf2476d6f54. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BRAGL2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee669fa7ff0a64defea67d5994ef3c0d1257e9854b56b40870438b803260f11. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/BRAGL2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fed83764c7b2613ac856ee5f291e46cdaa46c8e8f78a033729b7d77db06ad6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BRAGL2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19a456c3d94ad69805b5aaa2bf18f7df28654f69f03d8f2917fce6e7a61c961. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRAGL2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031a24d3c3d8bca47363eaa3537a66d6ef5eabe722d23696621afccd0d8dba86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRAGL2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593711e69ad4cf87343eea5714686e21ccf7f9ea238889c32e0fad97df38d9bc. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BRAGL2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe050375db6f3ba50e38cd3420b7f519c770bd29b44d938ef1378de4ee8827eff. 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/BRAGL1800222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63e7f91690a70724fd52e4550b4db7369c296f5916b6bf052dedc4ffdfec0fa. 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/BRAGL1800223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444daf4d055ec971e708cfc3121a1137a43da8ab954415eb8a25b5fb052a03a4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRAGL1800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3899abf511700f31cf7656cf9ed011567d4ee0ac43e6d6fe40e014d42613128c. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BRAGL1800225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1616bcc5431d34067485d5c59f1a458986cd1ee66fa1cca2ba33fc628dc8f3d2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRAGL1800226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf9ce4639fbf78c5d467821b55c035c6ed2dc372a4841641641cccaeeec51cd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BRAGL1800227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747aabb70ed939a2fd944d7af33326894d8bd0d77aa9bb9abf318fa5b2856f97. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRAGL1800228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadf2f047e7b01e4eef9d139dd7c2cf30aed02a29422c9a4fc865c642b762049. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BRAGL1800229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f020adc52a7fa1c0eeabb464377d728991cfa346283ba107601dd0a77b12c. 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/BRAGL1800230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaac21ef6cd7600918725dd093fc30e537efe923982264a4ec8cd33da39e7f6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BRAGL1800231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad530572809e48872f7a224e9696e8b5c550477973b21b86d76b3eeb68927224. 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/BRAGL1800232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84335752e136aa919622955dad7bf4170df23c73148a8ef685508e349457fe5. 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/BRTPA0500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d243fc6475070dbf9d3efbe9daafc0df660991946663569a2922e07e78c4986. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRTPA0500138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563fd6907a2a25343905774791459e49a697a70307b5296ae2976e10339a8142. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/BRTPA0500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d2ee49edec46f26a08543fe5a1c13cfb133d1f95d2849c130fce6d39f4b9f3. 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/BRTPA0500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9672aa750d41dc4cf007bf16020241b27975fc6ffa205bec6b7722c40c4cb926. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRTPA0500141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5b6e0bf33baf31800cc62382e3fe0c34dc99351258cbb42d02caebc5af4896. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BRTPA0500142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b3d0f3b2a718553561c5c9ce557948eb765c1e1be3d763443f3d4dcc7018a7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BRTPA0500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cc8d1cbbfc4c83d299c8ce68c0d68448a614c51d904d6ba7bc7e6c96271d15. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRTPA0500144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8aed7929458cc890fc77fe8cce7cc718d5dc44a4eac95ce5fdab2a5821c0276. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/BRTPA0500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97556161c38d917bd3e780b7f4a99ff84cf23000d7f38151fafb74846849a6cb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRTPA0500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3142edf98ed871e8e12f715d274e459e6d6994351b96fd8f8e1d83b8d511aef5. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/BRTPA0500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda39c7df1c6affbfca2a4e5b51f1aace86a08e605013dbd7382bf3826b7e2b6d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRTPA0500148.