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 0x37c941c63e823d4f7fd0041ffa39d19730138cc62e76b4bb3f0a7982453af825. 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/e6811e5d-27f5-4055-b039-81c8ced4fe47.json and https://artists.proofprofile.net/proofs/artist/e6811e5d-27f5-4055-b039-81c8ced4fe47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano e Voz, Amigos e Pertences 3a (Ao Vivo)
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 0x7edac86d92a4a133952e241aa10c2ae8fa0f19212ff27f6c9db8efe4a0aed1b1. 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/BRYA52300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000dbcce25b591514e0e6852dd0286c308385240eeeca4fa61262b324ae66280. 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/BRYA52400022.
Medley (Dependo de Ti/Eu Corro Para Ti/Senhor do Tempo) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5756e0db26eb09713a8bd4b099f3a36d57d10458afa57f9271e4df9b805c942a. 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/BRYA52400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d21660d5619db3699f4b0a9a8418ceb4643ce11d46f0f70ed149211c22c1d5. 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/BRYA52300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318923746f6f6adafad72a767444ce9ddc6aae5dffedbf5594164cd356fb608. 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/BRYA52400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318923746f6f6adafad72a767444ce9ddc6aae5dffedbf5594164cd356fb608. 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/BRYA52400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d21660d5619db3699f4b0a9a8418ceb4643ce11d46f0f70ed149211c22c1d5. 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/BRYA52300325.
Medley (Dependo de Ti/Eu Corro Para Ti/Senhor do Tempo) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5756e0db26eb09713a8bd4b099f3a36d57d10458afa57f9271e4df9b805c942a. 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/BRYA52400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000dbcce25b591514e0e6852dd0286c308385240eeeca4fa61262b324ae66280. 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/BRYA52400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edac86d92a4a133952e241aa10c2ae8fa0f19212ff27f6c9db8efe4a0aed1b1. 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/BRYA52300327.