NUQ or Nuq () may refer to: Nuq, Bajestan, Razavi Khorasan Province, Iran, a village Nuq, Roshtkhar, Razavi Khorasan Province, a village Nuq District, Kerman Province, Iran IATA airport code for
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 0xca2cb557704864ae09ac6c71a9d4c0ff3a90e735a7543fcf33e570c5fe8b4494. 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/15e98654-6d8f-4e7a-acda-18efd7530d38.json and https://artists.proofprofile.net/proofs/artist/15e98654-6d8f-4e7a-acda-18efd7530d38.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 0x4d31ebb81b77cc5ede5ccc21f5e901a25fa866c7649a93b2f87b8be2eb5e8e95. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZES81870696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ddfc6f76c07f7e225375338d595ce22a46a33e2e31cd92647b664849647fc5. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/QZES81870697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f865a89e847d87ac420a3500640cb47273c679fb38d71b9064219e01a18f8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZ4JJ1981117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e193c55f1176d5013593649f807eebf68b334d9aad6a38872c17617918188a1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZES71971523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d300a6989a30a2ffe2406b73c31a870d8dc7b2156479041ae07f86befb2c1b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZES71971527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83415d88297312cdffe80b4452a28845ee6e32940ef78718d4ec40d986703006. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES71971532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9f480c3e62dfcb9e96c0080dfd8fdab1d866a84fd4fc9cf02fe7dcaab4b981. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZES71971533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e17cc87007df4cff6c322c0b36a2b5f855197dde932bba8a0f6f1df5028991. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN61904174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eb84fbfe1a8bc763cc7935aea59480e2d5871bec94d6a121c5dff969f8b2a9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZHNB1956806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391437584135e84ad89faea664a78d4905b27f30930aba10020d99d634bea1a9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWQ2012214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523dbe66426218e33800fd54f431209e110a2690c84bf5ae5110d819ed22684e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN92177302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1715953f71d8b623479d9cac15bac6cdfe0d1de7f7ad1de537d36d31c7317e38. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZNWX2176222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2830c98eea6cb4395a87523193540a0c7624d5d8a7a31b4c4abaab8dc778c71. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6J2169266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbed2f8d600ee161796cd34426da89509d977b051569f22a8c479f875f6a507. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN32342626.