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 0x060eba3aa8a2f35c668546bb4fc56b399fd6e5ad75484e4b9e51654258f92d33. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e7d7c00-5243-41dd-a09c-a3981c6e6730.json and https://artists.proofprofile.net/proofs/artist/8e7d7c00-5243-41dd-a09c-a3981c6e6730.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Melhor Espadachim do Mundo (Roronoa Zoro)
O Maior Serial Killer (Jack, o Estripador)
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 0x192895c81fb35a16c483f84196e70083ff5c3aa5e90d7d3bc3308abf585f3239. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:18Z), 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/QZFZ72476346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb078914ec2e8f0e1ea38e0b7b3aa19aa8244a09b402a1147d791281c42199c2f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZZ7R2468898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295f503f29e5bc09cfb9a87fc41d2fa47ba01fed3123f2bfb0e1a994a02fd988. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:55:24Z), 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/QT3EY2481056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aba6320dd1ef329766e06aaf313685262bb8b082f7a4c1636deed22e8f5f95. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:05:57Z), 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/QZFZ32526379.
Eu Nasci Para Imperar (Kaiser & Qin Shi Huang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc5ba3b552719cffb0c05bfd25a8240ad58aac15837e5abc46d9e8f8287158. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6M2582800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc5f5ed54c67040e9ef7a4380626cfcd567bbd65541b0eadc0e076d4a18fdeb. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZMEP2548895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e10533a34b44f196c182587795c9de8c7aa99cfbe2b8076a0c705e73ed88d0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB42595026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1399a273ad33b7b3c3ea273a8f1a66d6918653e8b74fe4ec76e1878e373fec8a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QT3FH2512917.