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 0x4e707f0263444700da89c64893ee487ad05dbd3708ac383ef5fc25f0e0f7b661. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/268278ec-6213-417b-93c5-158c2d6b5598.json and https://artists.proofprofile.net/proofs/artist/268278ec-6213-417b-93c5-158c2d6b5598.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 0xb5e53c13caa62c51120fae169ba2e81ce8fcd663523c4ca8d19521551e57550f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRSIC1500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7ab0887342364705ea30fa3f2a30a136629e508efe8c6f889f47192bff26cf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRSIC1500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1a2dd61034f8799ef5f15d31c8749f6be6e45c1230e8ae38ace28e14061624. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRSIC1500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbcf8dc043ad21b3736397ccc86bd57ed2d451f30b025cfa34c6e0876ff3e02. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:03:56Z), 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/BRSIC1500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e3fcd67c35d82a066b11e4c02d744cbc1181982f81772349a75affaf3259b3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRSIC1500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86502e567e36ae6595cf0a165426f3794c812a24f77a4446537c39099fe4abe. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRSIC1500229.
Medley: Teu Santo Nome / Não Há o Que Temer / Eu Sou Feliz / Verei Jesus / Em Ti / Nas Mãos do Oleiro / Lá no Céu (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85eb661da70da309360e797d634846f5cf28f8db563578f457922737c12a7f6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:24:19Z), 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/BRSIC2400042.
És o Ar Que Eu Respiro (Adoradores 5) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba42095a60b5a3f9744500a81b49f77642cfca2436bacd07c0f37428620edeb. 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/BRSIC2400052.