1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7a859c97c1408635ba09504c50c92f37a8d34a4d09d626be358b4972a7a6bd4f. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b094a062-8307-4409-9ced-4c11d7b2dd29.json and https://artists.proofprofile.net/proofs/artist/b094a062-8307-4409-9ced-4c11d7b2dd29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pássaros - Homenagem a Chico César (Ao Vivo)
Por Causa do Ingresso do Festival Matou Roqueira de 15 Anos
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 → block OTSBitcoinBlock must exist at that height 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 0x27f71ee8adb48e8f748c26ac3c22d88fae635d456fb5276d82bd43501bee8ea0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRV3P1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423d82dad658f3c6e160ce3c2fca5de3684f1be4fc6218a15bf0783abbd0bb8d. 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/BRV3P2000035.
Por causa de um ingresso do festival matou roqueira de quinze anos
Medley Nanã (Coisa Nº 5)/Honra ao Rei/Dança (Bachianas Brasileiras Nº 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0474a0b0eae858d918dac20da6236e850807d7701f797ad9e7e265251e54e84. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRIHM2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ae2ee612ec2a15a84e52bc1462d64f52a4d8b69b2d67a8a4ba3dd359edd9ef. 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/BRIHM2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84830c859781f6ec7c1ccefd89aaa66fc5630e59259e4f03f43084671f0a48f1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRIHM2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb38d3c537b32268c668a91b8fb641c92b35f60be2ee23ddedaf2f98f8655e6b. 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/BRIHM2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df172c45b99630f9185ea91630f9e20322da7f0ee7f3d0d63813ffe3ae8cc8e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRIHM2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa2f6bbf05e37e64eb8c7d3283bae8de988bf0742c36f1de9a27d191b0cab71. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRIHM2100004.