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 0xb2e6fad63ed4941cd383c70ec86015a59534d889f6e6608018ad42661ebae875. 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/8d7aea63-fb0b-4ff6-85a0-1a7bc720d7e4.json and https://artists.proofprofile.net/proofs/artist/8d7aea63-fb0b-4ff6-85a0-1a7bc720d7e4.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 0x852b355dd9ebbad82ed025830cbd62c5d13711e1e4015c4d10cf4f12b21d075a. 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/BK29U2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66605c4c0a760a5d21a6fb3b83ba2c62822a77a71b0287c97c34d38c7c8d49d. 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/BXHUN2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3173f7599174388cc0a7cd4b395563f43dc34c7457ecda6ff5533369567b7296. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXHUN2400001.
Jeito Bruto de Querer (Ao Vivo em Uberlândia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cbae43e0fbf8e2583d1c9cb303035c32f52e79296eb9010a3c74973de53f1c. 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/BC48K2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5f511b65422d9c9b84acc14d814070cacc2ea7db1e1bc5c9b9bdff11e6a7ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BC48K2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c7bd4bc53c580b6888d61cbae85abb1d8a17b05104c4d79ad6ef47c0a0d54e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXHUN2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b4fd59e1469c446763c2be5804d1bc586f417288fc65bac096fe6f6d28698e. 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/BXHUN2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8e5b459b921868eca8724006e4ddbb48df7deff3df01712d103dad68f58cdc. 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/BXNT62204627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271a020c793bcf082a37e78755be5564ba4774d00ac3653bdb98275b18b5b9a8. 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/BXHUN2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc177cb29c10dc959f6006286a238b77fe26f91145b7b872baac01b9a35cc037. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXTB12300005.
Baseado em Chifres Reais (Ao Vivo em Uberlândia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa7c3ca15b4c1d5c1fa25cd80b8f69c50d2efdac1e1d73955af7b76a295227c. 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/BC48K2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89c8ddcd8420b92e22e3beca0db51d01027be5599d4ff6af505cfb05264ac78. 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/BXHUN2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89c8ddcd8420b92e22e3beca0db51d01027be5599d4ff6af505cfb05264ac78. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXHUN2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0cd2b64f162afeed820e81579d4bc5052cf89e10bfad6ce6ead3f3809b2bcc. 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/BXHUN2200003.
Princesa do Interior (Ao Vivo em Uberlândia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0963dd15069ee6a283daf05ef47ff8419de6bc5d9cdaf5ca1ca80683238efb7d. 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/BXHUN2200001.
Tão nos Difamando (Ao Vivo em Uberlândia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b804b5a30e551ccc6216aa60f3b410f6516f8a8c55b895f964a94e7ad826a5d. 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/BXHUN2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba658d4895edb23dbc2ae2c7431c2163f77ed1e2658ee62ad3a2113f09dd936a. 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/BXHUN2100001.