In Greek mythology, Nyx (;Tripp, p. 624. )LSJ s.v. νύξ. is the goddess and personification of the night.Grimal, s.v. Nyx, p. 314. In Hesiod's Theogony, she is the offspring of Chaos, and the mother of
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90e201f08678ebb10cce21f246e06e004869e882b884982585f3c1bc564713. 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/8d6dfcb8-2968-46ef-a8ee-f86185bfdab5.json and https://artists.proofprofile.net/proofs/artist/8d6dfcb8-2968-46ef-a8ee-f86185bfdab5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bfa13d1ed2768919bc935aa577ca0abbb30f30fa40b777a67b29c53daf19bc. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/GBKPL1972774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8685df5bf3a23a154f52b19c54092084bfefc30d7ad70fec095fc430001e908. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBKPL2145827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9093241ea5baf3a9cb5cc6b539d715795eeee9c3f3976899a2b33e76903a0e8a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:28Z), 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/GBKPL2145822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3941f71395e181c665b59f062adcdd0bdd41fb63e18301635891f1867ce04bcc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKPL2033164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc763ae84a70883e9dbecce4ce7acf3874149155e0172b5993236b7ccf5c4f990. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/UKXJD2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0b02fabc81d7b9cd265289239dfa4c91e558256dfa364027e4c3eaf5ec911. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:41:08Z), 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/UK6822420013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb109bf9ddf242002fc83878aa68c321ceedbc09faa126f9690e822c684b0a9e8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:35Z), 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/UK6822420012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476d0c874016f7158b6702c94042df5712ab7494b18153834cb6a5aa0bd2c8e9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USJPL2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6cbfb21142bf576ffc065d510bc9c3a865b48307164749e6b80756e567b7cb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UK6822420007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236c17d8ec7150157e555021fe1c3124c21ab728e0c85d242bbdbce503d01e71. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UK6822420006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6cbfb21142bf576ffc065d510bc9c3a865b48307164749e6b80756e567b7cb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UK6822420007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb73ed0772368b3789a96237fef1d77078f37e48bfacfe9e58f6f790bc14bf68. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:48:41Z), 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/UK6822420009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ebbf905426f5382cb1e5e540176564328ddaf2923e0018175ee2f64ce101a6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UK6822420010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752242fca342163e7a29b36b6d2e40a6663c18a25c3a4a4c2d11613eb5386004. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:19:17Z), 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/UK6822420011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb109bf9ddf242002fc83878aa68c321ceedbc09faa126f9690e822c684b0a9e8. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UK6822420012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0b02fabc81d7b9cd265289239dfa4c91e558256dfa364027e4c3eaf5ec911. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UK6822420013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573f00d5dd9d7f68edffb0d980755790c0da8ea71472692025acc348378857e6. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/UK6822420014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d690d3b51a6b0a6bd901ce91717fb66b974408993ffe1012a6febf9f93a90a1. 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/QZMEM2182238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0200f0bd3e60b7db125c459947a307f42fa981eb79e8542679f83c7110f9ee. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZMEM2180250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0200f0bd3e60b7db125c459947a307f42fa981eb79e8542679f83c7110f9ee. 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/QZMEM2180250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635b3cc01d48dfa9966c3f2c5e1e0889a82d4be9f2676e143f7e52be57fb275a. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZMEM2182242.
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