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 0xebb0addcfcd2a2397ded397ab539d59140b04eb8fd168567d7cfe4ebe5bab1b4. 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/d12146b3-0898-496d-bfaf-3a3580a92fca.json and https://artists.proofprofile.net/proofs/artist/d12146b3-0898-496d-bfaf-3a3580a92fca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MONTAGEM - MELODIA ENVOLVENTE 4 (Remixes)
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 0xa6e6f9c270d45b14b3223fc9b7a8cc40317d61e56753d848fbfcce6655932841. 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/QM3DF2157380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2a9fe23612d4cd023f5d13f48b9cb8c0631503fd0938451228fffdcbc480a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA112306418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebef46077d84154b7a3cfe75bd38f229018c2758dae7862754fc18e81ee4537d. 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/ESA112306495.
Automotivo Ritmado 2.0 (feat. 3 TENORES)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3b2aa846546da3722399487997c8f2321d282aa7e736afe97168967bd6423a. 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/ESA112433761.
Igual Eu Toco Guitarra [Versão RJ] (feat. DJ Dudah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a1a5ba350534549e1b7d33c6c84cd2a19ca777842ac069fcc770a005f9082f. 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/ESA112434104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56be92af313689b94ce7d4e1fbc8896fd2fba181178ba34a6cd516c21eac796. 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/ESA112426716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb045522eb2a97fba786f07be942e2b8b031535970d7c16f3f8af42f8af543e. 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/ESA112307345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aed8fdc7c9f17f01876264ae93499501f33e9cd564084da487c8d5cbd5c78b. 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/ESA112438859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387d802895fe2c529f193008c44887217624ed8ab830d9ae74646f63d79e65a0. 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/ESA112306197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec511c366df71b3096f0b1454a0a4110ca8fb7dade8198fa00ee7412f6ec6252. 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/ESA112307082.
Então Vou Jogando, Jogando pros Faixa Preta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d6d2a6a5e44f9ae147fd1e7bdfa41a9b0e71671f10f357e5716a80132e0436. 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/ESA112306417.
Automotivo Ding Din Ding Din - Joga o Bumbum em Mim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d526dc59942d305acaa0a95796c05765216d13649accc80cb627945409107. 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/ESA112307337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd087724200266ca6ecb9d00151c99d9f33dff29fdc3c9b4e6b5110264c2a9ed9. 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/ESA112306124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343d888055714ea4db7eb09bc3e1ee6b4ae55bc83dcda952f5c16e767756ed0a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGLM2368386.
Automotivo Astronômico 2.0 (feat. MC Thaizinha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d396a3ec40ec23d375348809567d4f824a2972c084cff7fe245c8c1b831818. 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/ESA112323766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9020597c0886d18ad1c0580e76a53de58958d6ade4c482c435c506eee783092. 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/SGB502565001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0850b970cfd968260773c610d3446c2dad625e91a708035862502d3bbbc8891. 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/QZNJV2311120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c91b8cfab1a4ebe3bbd7abb9026c73aab7f466f28e901313cda1807bbb703c. 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/BKHZ02500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae61d8b5f40cee3618360dac266f39cc9d401e3f05a5a41ff3237f0df9fdc94. 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/QZEQU2251808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5027f4dac31b8140966f715ebe5b85ef88427c4e469b95bb3d88b4a9c98fd2. 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/ESA112306526.