Nazia may refer to: Nazia and Zoheb, pioneers of the Pakistani pop music scene during the 1980s Nazia Khanum (born 1943), British management consultant and researcher Nazia Hassan (1965–2000), Pakist
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 0x40cd42c65af5b7bbfa25003588a80e2f7e1c5ed709b34e6ac5a264127b4953df. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90318e55-bdc6-4a9a-93c6-c81285553360.json and https://artists.proofprofile.net/proofs/artist/90318e55-bdc6-4a9a-93c6-c81285553360.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 0xf9a652a3395d3333f93a00d52a8f72101db5b5121c7e69577d04301dbad862c8. 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/QM4TW1712850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc069aaa6f8f5da17d34a9820d4ee07c8ed76580e469c23c1ab84a4547498ea. 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/QM4TW1712851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc44a28c13a68917428ea9a4e4a02f843aec2711dc66ec87faee156c3aacb4a0. 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/QM4TW1712852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd460b3e12d493409d7a2157cbc2d68f3d95eba4976be2e9b11cb4a93f45e5c. 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/QM4TW1712853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f57087f3ab66e683d36d6e5d8448826e4cd94b2449ea04abf9f3a4aca7572e. 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/QM4TW1712854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0333c6d630196cb2b098a89ff06e0dcb83b759084d9bf54d65d1f6c31b86757. 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/QM4TW1712855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4091d8133e909ae1900e14d51fe307cf9c87ed530e4bddee8f874f2875076a. 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/QM4TW1712856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddc73561c055b7e190f848796282dd4e2c5ff58a586c651624d2422c13952d0. 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/QM4TW1712857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cf51bdc5fcadbd86e6241aa8c1f4dd070761bcf318f253cbe5dd1064089c85. 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/QM4TW1712858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8243bb7ff2eaf2b32377308854f72ee6c96dac902e4cb9915255f3e5808fae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW1712859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc96829a9636816bef204c1a6d695b25fbfcdc94157083af987266bd5af49d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW1712860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83034cd2a2ce6390ab6bf9f5a8682baf60855f882692cd7f51351a9b957e6798. 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/QM4TW1712861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb523e94eb3592e09792f4e4fe744064ecd7cae4afb1deba34fe94e6982f8df30. 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/GBCBZ1729501.