Nitrate is a polyatomic ion with the chemical formula . Salts containing this ion are called nitrates. Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates are s
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 0x36d47e93ca840a8ce45edf1a0f0acaa0cff4a781f5dec17502f4fc2432d7bbcd. 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/1dfb62f9-c9ee-4179-84f4-6e2ac1bd8d97.json and https://artists.proofprofile.net/proofs/artist/1dfb62f9-c9ee-4179-84f4-6e2ac1bd8d97.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 0xe3a094217e1878f5f9d5be1ce49fe7f4c009b18e268bd325d7420e9d490bf80c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DELD71901710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77f0086639757829dee2fa6d315e2a0f56f588ffb92cccd71fc05f04a018242. 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/DELD71901712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb83225c190e922f8a7bf1b87f84a8e7dc62bd3b89d8f94b72bb389480fb2e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DELD72102102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9da27ddd97e32aed2e6f5e3ae6bc01b4ec51d38c4df13bef8ace0628a5a7e3. 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/DELD72102105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b471b0385caa7ae20f1a09935963a36e4cd070600174993e75721bef88e695. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/DELD72102106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b890ee01e455e48e5a472876dca8f44ca4984e0aaa15fa5c05fe93b46190a4c. 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/DELD72102110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29461918d10eb4e17422c33eb55ce6773ed5223b7bae645559f891c3ca58e364. 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/DELD72102111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce31a9b65bd75b69fff2c2ac221511c155e08f95a724fd37e127fbf5bfbcbb7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITG272300893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b326f3a2fbb8d5a570a85630f759de64159399ed8e211554d93f3c38c06731b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITG272300892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd51603a140a327dc062540354e189d0f5ff11b3d4e9baeadb2cfd81b7691ff1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:09:57Z), 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/ITG272300896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf005ae2474b0745439d6363d1c3e287936aee1d848891f6977bd20dd6b3ed38c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:16Z), 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/ITG272300899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c78481e4f00a39d4116da33aa3052474c04e1348d850fe76e5e78a63e996115. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ITG272300900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e95e02a72576872ecccbe6ebc42f387cd608100c098c9a1dad875b9f45bfb4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ITG272300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511b81316261e4da0d750ce19f5190f733abf868a72c7359be990e8e62c8f671. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:28:17Z), 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/ITG272300902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc3bc8f537f4309c66d2d7db68704e0d6112204d8f34bff91ff92407e53bf64. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITG272401022.