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 0x5c57f4674e9e7bcf02be28dc9a9712904cdb1e8b83ee3a7b97242ea7ae60bfc4. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df9e9bfd-25e0-4036-8d63-686529d56d91.json and https://artists.proofprofile.net/proofs/artist/df9e9bfd-25e0-4036-8d63-686529d56d91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sabzeh-ye Rize Mize (Children`s Music in according to Iranian Classical Style Music)
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 0x5a55f785db108ded3315e04feebde8a0efd897797ff16d6a2c7e67589771c036. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IRIRA1300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b3cba2ee7b24fe3296e0696b896ed887e495adb3da23b2fc29ac0e49884d65. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IRIRA1300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddcd2232c0b95fcb8ee4065b9c595574e7f7e9193cc25d163554e9734611460. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IRIRA1300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388c7194d4fd29d858628940468f7f53f028a170a9a84f52d6ad11d352a484eb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IRIRA1300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225e7615e4a136709f6d91e9ffe7d2d0faa87e01034cca8207418eaa3c3377a0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/IRIRA1300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af107b771b0318f1cd3bb8841a92cb414350f175192bcd5e0a572c2b05888b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IRIRA1300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f73778cd8adfcdd293fa98d91cb486f0ff5587182e5de0a7f79b3d8340094ca. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:40Z), 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/IRIRA1300278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7b656e0e409970e14d84bde29d877c2a8822077c4786d404a6868ca097b0e1. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:17:04Z), 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/IRIRA1300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd533a15a0c72e6ab02bf22a928c98bd892c81d60a38bc71f63e29c2fbbfb80. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IRIRA1300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc8870523227f4a9b31fc531b92c324f14944dc466393fcb2627c7de2bae8d6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IRIRA1300281.