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 0xa1d0fa037a7c24f3258d339cb7824d6ec5e170ceda31ef17b8a2d44e017362de. 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/71c53343-fdf9-4e62-8b1c-c374d5f8af5a.json and https://artists.proofprofile.net/proofs/artist/71c53343-fdf9-4e62-8b1c-c374d5f8af5a.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 0x5048d4a6f9836a65749b6943ec6f21f317aab43dad4f04e606843c964d7af5e5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BCFCV2400475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb72c8156dd411d81e45ff6921908dc927074296adbbb6e930287b55c612f596. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCFCV2400505.
Pega na Minha e Balança Vs Xerequinha da Vanessa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5c7a40a75d640c35f817eb746635cc504674d3e21a185c2986a13d81a9ce5c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BCFCV2400867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57a138889d9f0c28237bc0aa42cca7b8de147ddcac9bd7487107b60ec9e5fe6. 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/BCFCV2401045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342365b7d473c4b906b347e0e439b2c685da074770d0b4d5ca8e5479d4933011. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BCFCV2400983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739e34a256439fd2f869a0ad16f4a664b808fc4d4ef4239825cae5ff4ed45a99. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BCFCV2401051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacffb8f29d61d52e4fd500843b2f2f5308c2d06811322ad9dfbfb2bc573362d4. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BCFCV2401102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b484dddd036e748d9f057252e0f5b82f54e2b022178a2e9272de57dfd8c9cf. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/BCFCV2401159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a106a5b2f2ea36d7867ca9016bd168cc9eb9ce81aa180ce8e41afafdc4ee8e2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BCFCV2401285.
Deixa Eu Te Gravar Mamando na Land Rover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b21fd3d4062076552cb59eb40e279fa8733b55002bd964ab179bc29792fd735. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BCFCV2401573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b87b96bada6c3798e1c1d28ed6fe7ea90ef411522bb6e16abbf362dc5129a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BCFCV2401658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd794cc352e9425f1fc70c5dc478859a1d84f7ae3da88ccba9e72b82d47431454. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BCFCV2401637.
Ex É o Caralho Eu Quero as Amiga Gostosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86edd6f56a85959b49dedbd0c3c41c9f2ce8e96b0c556c1375075ad49a9baa0f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/BCFCV2401672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcecfcc320280aedc79d4f1bbcdcc95afe45c99c6b74e234e7cc7e58eae1122. 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/BCFCV2500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf3668150a78ffdf2dc6d459bc55965738b2efd09c48508c914554352ffb653. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCFCV2500303.
Agora Que Me Perdeu Ta Louca Quer de Volta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68476ee1d1d8bb4dcd785b5333f3a818c59726b562edf1e77087ff5814421d55. 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/BCFCV2501153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a412772cf90160330a21893b2a74178dbbe235c328796401f1a3cf5c2453e6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BCFCV2501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117619991dc339762e5ab0f765f853b0fb9427c7452593b2574bdc8f12e8bb07. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BCFCV2501316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5b343fec20fdf459f0197cfda953a0f40602a109b1416c35f6baf9a240f1d7. 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/BCFCV2501312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5804f83ee77a0f608d3391d0a5753d339b8515f68d2f88c486ebc49050d950. 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/BCFCV2400963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9423c1e72351bfc3684f140865d1e629ef3af6b22a6cb872eeae87094d68c1e. 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/BCFCV2400518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4a41445493ac4a00a6ced2b90139bef45436596c49ada5d673379ea36b038. 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/BC71O2400148.