{"copyright_id":"0xaffd0cacf4edda4ee78cc08affaf49b28a6bf71abfae50f44fba16fa162f438f","name":"Noé Berzaín y Los Gamarz De Oriente","registered_at":"2026-06-15T07:15:12Z","symbol":"NIM0721911","token_address":"0x5595f94bd47f3cce1786ee0c004c5aca1dd80630","type":"artist","uuid":"fe3eded1-8329-483e-8dc8-3e25835a6cf1"}
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 0xaffd0cacf4edda4ee78cc08affaf49b28a6bf71abfae50f44fba16fa162f438f. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe3eded1-8329-483e-8dc8-3e25835a6cf1.json and https://artists.proofprofile.net/proofs/artist/fe3eded1-8329-483e-8dc8-3e25835a6cf1.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 0x1eea24bcfe881c3e5b76514fcfd679516b59fed07b1275c38eb9b8cb67ee8989. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZHZ42013978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f99e0221be00848c74f00ef5ca1e569ae8ce117d2a9a49f7abac46ebdf849c5. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZHZ42013980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0fdad42a487fa141ee275b4f46376731150eb143caf404ad12690c2af1ebd7. 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/QZHZ42013989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33c503d4683a08f05c9f7633b5ef11861aef711e9c13a872065f0d8228cfac1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZHZ42017096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b3e9760d45008d28853256e642e4ef8553aa48a1db04253017594e7fb701b3. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZHZ42017098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff6129aa7fd899e355b15eee5be9a1cd180d330992a424d6f85f3b0db6f839f. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZHZ42017100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd55257b5751b98caa7efe6e925178c5fc1bad6006b46c3034ce2c15bee34a. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZHZ42017104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a6117c4de418e6da9ce1c47470f0c5a1607929ab33a2de55b0027854948596. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZHZ42017107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b8f48ac2f922af96428392552c46306ef97faffc8d2ea3af98e0a2f073f22b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZHZ42013355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fdfa058439d1d559c5756727977eb3ef3038a197cda57e7a13d7e80e150d76. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZ5AB2178868.