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 0x495b294458f2ffd20469881be517cb02d1574e13e3985ebefb0ac1e5ca55f062. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7aab841-34b4-4471-82b5-056c5f755f0f.json and https://artists.proofprofile.net/proofs/artist/b7aab841-34b4-4471-82b5-056c5f755f0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LUZ QUE NÃO DORME / Light that never sleeps / luz que no duerme
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 0x18a6d46d9b5b434fd99ce06e61a3942a29263806af80964ba705b0fef277b269. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CAENV2575229.
Sussurros na escuridao/WHISPERS IN THE DARK/ susurros en la oscuridad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e58a552633b0a1e61622d9975f5455ec2a1f8a9d811c436d705643de2af7c3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:37:49Z), 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/CAENV2574137.
A VOZ DO INVISIVEL / voice of the invisible / voz del invisible
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e07fefdc4bb46f04b92516236e37a7426a9611671d9b33badde3373572c6a46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:46:39Z), 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/CAENV2575228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f34baa4650bd547702cd2211c8ebbb44b23bfd2e5ac8623855059768ef9d622. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CAENV2577552.