Madhuri may refer to: People Mononym Madhuri (singer) Madhuri (Tamil actress), Indian actress Given name Madhuri Bhattacharya (born 1982), Indian actress and model Madhuri Dixit (born 1967),
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf8e3f057816c72d98bb4d649f5153ef5a5bf6329cce8d650812f5af417d54. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bea93b4c-d4b9-4cb9-8146-385b4c73cd30.json and https://artists.proofprofile.net/proofs/artist/bea93b4c-d4b9-4cb9-8146-385b4c73cd30.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ec674bf135672acffd8a06731431a8ba72687ce02096f11e8e09ad450d96a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X41507948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f0cc6356575d44fa5c89020ab8e52ccb489e01bfc825d0f61ad6967fbca503. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X41507913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658a8236c7933265754d8f0441aae750e74b3972e1acf770d8b65b14815622eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X41507916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2960bc190518a077b0e0c34591320daa8175efcf1423527d4385d68b99dac93c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X41507912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd7c6928efbe1ed0f74a0e2cf3eab2dcdae68573e149cc0e82adbe170c4998. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X41507911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdd5a4ecc8edb64b1de8d0cfca30add86e7e64d64477681d6aebc8ac64ddcb7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X41507962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b34076e87c0f3ca30b3009f9c051e6187942499aa59b95e32639349c3b15c0. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FR2X41507919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe328435eaed5d92276065c52e8c4754164ec2a0bf37567efc5d952ba11406692. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR2X41507944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba6eacf27d88755a2ee8b3dbe9eaf53f951cc365e96c8b42fe76d00edd3e09d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INM6G1600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4131df7f991bcea1672f1a60d9f97925143ecdea4a9b262b5e15b10ec27c95ab. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/INA441000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ad8d1cef95afcbe82f2fe15046abd20a4672433d67301086eda92a1231d88. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/INE401103509.