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 0xffbb889120cfa58183043e415038d416f04db82481f7904c673d40f10cc193e6. Chain 2 (Bitcoin): anchored in block 953794 (2026-06-15T13:43:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0c017f1-a15f-4422-94b4-016984e12bf8.json and https://artists.proofprofile.net/proofs/artist/e0c017f1-a15f-4422-94b4-016984e12bf8.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 0x4654f5bebfd68bb1eb4e63f4b80126d6938139fc3f6e03b68ee133029aa6cd37. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BXML11500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df1b2bb44200ea113a77ecf5dce5be40c398b61e734d1ca41dbccb1599c3288. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/BR2X72300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109888376931dbfcb7c6e1e5b69c3f926d55c2ea73b870333695c6952ae6cf1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a03a497887cea07d208a7638bef0f4dab6236bbe9640640830c172298ccfae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f35ed06f7c5cf4e26664103a858e64e5cdc7289b97f837faabbba0a7a09ebf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BR2X72300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0475672b3b1f939017540134b08f1b95898ce814384bc28686c7b0c9cabeb0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BR2X72300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e31decbf7df9bdc875e8c62abd6979eb05a558b9427da417e799a47edcc065. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04fc3745f4a848220f4f9c42b5d313a3616d531e81be62c92d127d11cf9a18f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BR2X72000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8fb7bef6e5149b441963b41287d55245f3dcd18025f82d2e376367c9a4e6d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75484cbde2265374a9f7671a35235117451ad658dea559d1e60c13841a1f5703. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BR2X72000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01673753299fbb18ba98f91cb75823603875d82d6b1fb7ef253c98dce2103e16. 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/BR2X72000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e36942ef21c0115581c9d5cf252d06c3d6b116e29fa56e170ac52d06022dda. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BR2X72000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6768c819e4f20319aa6b1eb628df25193b79e0a2d4d8be8da37b4cf372bc8ff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef55e2282a7684da298ea65e7b75686ada9492b0e185826ab0f86f7c05fcfa6b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR2X72000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0b293027a128449f24307156d27cee8c0caaea7a8675241bb742c0bcfb63ec. 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/BR2X71900053.