Abhishek Singh may mean: Abhishek Singh (politician) (born 1981), Indian politician Abhishek Singh (artist) (born 1982), Indian visual artist and graphic novelist Abhishek Singh (cricketer) (born 1
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 0x6e4632d36bc2aa5c2b6352330b2d502e694b74d8f595004ee5249b12e8f32cbb. 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/90810f08-dd17-4328-b3a1-bdbdd1bb3078.json and https://artists.proofprofile.net/proofs/artist/90810f08-dd17-4328-b3a1-bdbdd1bb3078.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 0xac7037fc2f60fe9f3a66f03208cb7cf45128e46acbfcdfa92c4826ecadb44ab2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:51Z), 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/INH411833754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851aa541353e6681cc8785b863b0527dbbf6112347cfd53b201a0bde5fa18505. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:24Z), 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/GBLLT1907262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2764e01b2d95d9205d6d4538e20147cdf95c9e288a7d4667cb8d26e5f89610. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:09:00Z), 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/INA3S2104169.