Nivôse (; also Nivose) was the fourth month in the French Republican Calendar. The month was named after the Latin word nivosus 'snowy'. Nivôse was the first month of the winter quarter (mois d'hiver
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 0x2b9f01230404743e3f0535da90705019fdf3d15cc13f9e9e50e714a53b46cb76. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c51d79ee-52db-4142-95bb-fea3d1244387.json and https://artists.proofprofile.net/proofs/artist/c51d79ee-52db-4142-95bb-fea3d1244387.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 0xf401aae6db9e428ea330e24939a68a03c160658534c45feaebb95e1b77a2e18e. 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/QZZ7T2492957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f835da74d1cc047f838d089ee94e6a1d4d6c33a6da854dd8488cc0cb34003d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ7T2492958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804c47c6e39e519c0f1ba824c4c4700e91a60000105f8016d9d7aa2704d18965. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZZ7T2492959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46cbe697f1b34bcb15046ffe7faa689602d0bc4076a10fcf403ae1e9f4d7399. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/QZZ7T2492960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e378bba01423b64b0593ec0c10b25adc9a09b2a63e20bcbb18da67a963ca52. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZFYZ2517946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190e9e664148f6c5566e0564a6ee5439d7478e437037372a3b0063a9519a8ea0. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZFYZ2517947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b577d93c1a7f6fddef880c2e6d7c5ec9a110eaa33466850b5eca0123da9ae3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZFYZ2517948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d4360f545c11118e5fabc919734be3f9a61ea4b043c3abc5d286f88eef2d69. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZFYZ2517949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ef1614125a656dfcf10e296d05647e3f3b41ab45b035d071a2b7485cefa88f. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZES62522965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2780fc493045bfbc8d4933261aa2f2fd4a1e1c331fda5f88e99c10f55dc62223. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZES62522966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b36abb6c9080faf0df1ee0e9a1d92652868a8ab3eb665736e6e262e95068a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62522967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ea821f9406861ee151223051bf14393bc3c4b1c4e1d9904ebead1c75d65221. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZES62522968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55693216122705c5586418415069eb59780cc18f40ef6ad922812c4eb8c13ce3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHNC2591999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574bfd39770c71e39860696c4a21a8b2b69cc3b67c2843352638b913dfc6b79d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHNC2592000.
Rolled Up Fried and Hazy in a Korean Restaurant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6a39f1027e3ac22a5f6ff3bf3d714116bc647c39ed2421fc9b2d8b7ea40ea3. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZHNC2592002.