A Nowheh or Noha ( nowheh, ; translit. nūḥa/nawḥa; "Нөвһә." Azerbaijan Soviet Encyclopedia: Volume VII: Egypt - Prado. Baku: General Editorship of the Azerbaijan Soviet Encyclopedia. Editor: J. V. Gul
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 0x79ccc718d7d681264ec79bf09e8a4b1c4619be20aa464a226fc9e56a0f4bb119. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dd693f3-9b05-4b1f-8a2c-f6b35da9a634.json and https://artists.proofprofile.net/proofs/artist/5dd693f3-9b05-4b1f-8a2c-f6b35da9a634.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 0x397dafd879ba811a288f1b943d86c7f52076911a99fdf6c4c28506d62d0c8658. 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/DEKB71444406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0499538df1cfff9d515187f65318bc38694cdcaf6cd3880276c000da9c676d99. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBKQU2206719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35cce2a9e8224072a7f2a4c277bd328f8414cec1d3ca601b24ca6ab724535e. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/DEH742511086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47438508618fec3072fd9adace2ede75424f10727fa7c8b304ba06285b675f71. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6P42515669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f414d3aeeea66171eec541f70a27744822762aaa4e8fb721219aa117ea47d15. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBJX31716003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f17447e4ca1cced23371f89ef525ec91c854b3d6d64e22ab92f6c8ddfb753c5. 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/QM24S2004389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c05a6ac91bc049e06205156528640473a7d2002cd9409a820db92fbf437c55d. 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/GBKQU1938024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc6fbe7acd64c69a3bdb761d404b73a445381188ec127b8955a2ce9d21b8dc1. 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/GBJX33718009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cb4234b2bd55f71136e8269babb172d931b2ffd287855d594e41c7806f0933. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBJX33718007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2c4c1e17a954dbac9985da8cfd5b7acab3cbfbbb6d701e328367689bd70542. 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/GBJX33718008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c00fbfbe71e8a2a38aadb8dc03e13995222cac8982b900e6f137186a65555dc. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/ITQY42200019.