thumb|'KummariLova,' near Tuni on the banks of Thandava River, is an important Buddhist site in Andhra Pradesh Tuni is a City in Kakinada district of the Indian state of Andhra Pradesh. It is the se
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 0xa409ae898d29b186b4a68888d5a4f19f78375b92d6bcb338bb48705e8f7698e4. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d50c83cd-15b7-40b9-a060-c34eab57ef05.json and https://artists.proofprofile.net/proofs/artist/d50c83cd-15b7-40b9-a060-c34eab57ef05.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b41cba1a8883240104c57c10907ed367315a8b8522cd6950c339fa93fa4197. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:26:11Z), 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/QZWDW2554458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3236225d63e9f3fa4751374d5a47a90a80f216e5ab425e128920d1e6f4abad68. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:36:23Z), 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/TCAJZ2529852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04257ae575e103eba5d610e770fac9ffb6e102a2cad624226821771422e03b1. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:28:40Z), 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/QT65X2535044.