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 0x197c57b87bf9351b8514ac21e3e290b039eb599871e198896c08ad2525a1c710. 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/92becbb2-d453-40ef-93e0-13e52a8be707.json and https://artists.proofprofile.net/proofs/artist/92becbb2-d453-40ef-93e0-13e52a8be707.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 0xd785e05053dcd1ced91b9d4ec0ff835a7f06fc52dd94a3b58bf773858e7490d7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US7VG1593071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f040d76842252eb0820f3c29e4c09b59a9e88cbfc4cdf67b99bac275b66f117. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US7VG1866336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600668bcc2e62620e4759bd2744d0f007c3bba639c95ce2f2988320c841ff1eb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/US7VG1907136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e41a3b6b2a8130314610d01ab749681866a21e9359117281c2e8d40e35d05db. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHZ32293886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300efc11e115a40d7c1fe3704621b0d04d2f2152396a1765c0b63427631576e2. 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/BXKN32200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23460dea3385f3e549ad054f19f420443168f3835fb6a78ac1a33899c25c4e14. Chain 2 (Bitcoin): anchored in block 957959 (2026-07-14T05:54:20Z), 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/BXKN32200221.
Seresta do Dan Ventura Volume 3 (A Maior Seresta de Todas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f3e6201157c8c60b24d519fbc7a5266e78179bf52fbbdc637a129407939922. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:50:13Z), 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/BXKN32300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae453b498de3fe7fbee15c731e9fcb6613844831d117d7aaa5146f880a2964e7. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZW9M2300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcaa2c1eb941167b172a1b606a045fe11ffdd8483e0ceeb9bc0c4b335906612. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:21:15Z), 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/QZW9M2300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3184e7cb13b9e0ff95a1e4006969bc87dd73bbce2a30cd85922014442467d4c. 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/QZW9M2300524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4886a61c46071766f70729562e152ccf8e14342477e9dea7a202e7559e5f36. 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/QZW9M2300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee8a7da14de4bfb22b80bec758ae58dd27dd531e65ab1146e8835f718118642. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DGA0H2460731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41a53d57753f5fe98a82e39ef02456778684de94a39aff45dcf36cc94806ad1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNJV2522395.
mulher ingrata e fingida / oh mulher ruim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc8300a031c633aa6a0b9fad993c993d9fbb2b954de431ff0ca7b1b93e01856. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRX872501787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49d5e1ad459cfd1fec521a85a0dfb67eaf60918a48470a63492ec1bbcea7651. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRX872501789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2ec4250c0265f12adfab749556c0f775377b334d54747586714e443be113d6. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRX872501792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404e351d5f39039afb0366b38f9e20ade361d0271059fe69bc74eb406204042b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX872501793.
Vou Tirar Voce Desse Lugar / Eu Duvido - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72029abb6abac4a1aa4e1ddc9bd64871b8394f0b22a99295af3897abab4955b7. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTPX2578725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153e58168732da2b62228ae5b7a27ac586b53dd1c8323ed74b83dc5d6e029c06. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:37Z), 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/QZTPX2578727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34e3ea8c9f704e6a963a91712d7c338163f4e1cc7b5e92bd45fbc8f4f85bb9. 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/QZTPX2578728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fce19f8c8a600203a7e591b0f52f3f68c73a174d8ecb8519869160e156672b. 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/BCRIZ2301549.