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 0x85195006c04d70ff6721405b4fdd4673278a04c0719f695861ecf146259c0dc1. 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/61e8a5a5-8484-4b0d-94c7-9a86aae30276.json and https://artists.proofprofile.net/proofs/artist/61e8a5a5-8484-4b0d-94c7-9a86aae30276.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 0xd5cce92b881d2394bddcf8856caafc8fc3124cf74bc1d24b1265d1f9a37b369b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRQQL1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c2f667bf4a8e8023a975b9412f9c55ad8db35134ce1609faadcfa90a0d273b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRQQL1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06bb381c4900077334064d6a049177d2b44ea60ef7912623cabbe41c1e7eb8c. 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/BRQQL1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c250ad3d52fafc9aceec5cce7a09bd697c30632521c57ecc7b138b7991d7d24. 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/BRQQL1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703773c2021b1a016af9665340f029749546228ea339309f99e344d09d15549c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRQQL1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc324e958b26867f2bf20ba87fea3b367eee1a3dc088f73a3cd016440fc3a4c. 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/BRQQL1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621355341adce66a1da0b7d6871a490af5dc1515d1d2729baea4d7afe7587c01. 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/BRQQL1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d76adb333df10c36a9c0c2bcf4293a9fa74a0bbddb5fea1274f93f86b8e3e6. 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/BRQQL1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d57c595f7fdc36e582386f7a932a8f6487b18b5874a5254f1e6e1dc12747df. 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/BRQQL1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0494584dcc6325ea0286baa500bcfaef92a06e8929dca74d8f0e2fe932e9a8b0. 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/BRQQL1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e8b1b83939d856dde02f05068421a130294e1f54994f6642bc8fde089158de. 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/BRQQL1000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1a02c8a48ee8e2287f02bfaf8b82fbf7471c6cbfd0aa424c5591bce788e62e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRQQL1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c87a2aec4e693986b311ce25af184e6e5940a7d6df8fb736e48a576a4540c4. 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/BRQQL1000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9d011499337d258d1c22404f0ee95f890135738b58a372cbcfe1f1436467aa. 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/BRQQL1000012.
Festa Profana/Sonhar Não Custa Nada! Ou Quase Nada...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7727b82d4cf9cc89d71a71ab87762935e999115e2f562f6751dc3227c2d49364. 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/BRQQL1000016.
Não Quero Dinheiro (Só Quero Amar)/O Descobridor dos Sete Mares
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005bb2aebf32fab51d2e8503a0a38d18388fd7aa8962239425cac53b9a1d6132. 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/BRQQL1000017.