Sialic acid synthase is an enzyme that in humans is encoded by the NANS gene. This gene encodes an enzyme that functions in the biosynthetic pathways of sialic acids. In vitro, the encoded protein us
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 0x6426ef480477e5cd0607156c709a49cd25d2483f21c29faa6130ec9f43074a57. 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/e95487fe-86a0-4c8f-8478-2d6eb2ff2736.json and https://artists.proofprofile.net/proofs/artist/e95487fe-86a0-4c8f-8478-2d6eb2ff2736.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 0x7cac30cd6b8a2c9d946e385762e9e1f60e2d7b4047fb1cd9ad3bddc6cf796114. 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/CH6542242849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68adb4c5a2016344b5e28ea71f9c8bd6ef852cef82153dcff0747ec26b5078. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/CH6542277474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9559c4e51934d8bd3ffac27bebca230c742ff1f6439c34de5028edf7337842. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CH6542292241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd84a93f8e2dd4de14eb1e6a57998b2ee6aa5a12bfc2bc0ab27a6eb750fab891. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:21:57Z), 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/CH6542319803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd700faa09dd38639cf7a21aa401f7682743d94da2c2617f11e5b378800395aa3. 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/CH6542381857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541025cdf389791624bfb3b312bb5fc08a0b6a5794fbe2a199d30d20e8c6ca7a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:01:01Z), 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/CH6542460680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bd5ce32870067a0b94d8a233fd8e17b39ccaca42af27b580f90e687cbb266. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CH6542472568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298afabaad9a6efb9252443ab4cf2e17b0c6b918abbdca30aea4a7b0496a822d. 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/QZZ762454081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa94623ac22fb91c8f10821ba0ad69497a6c6a36b063a06577196996c6de1b6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:40Z), 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/QZZ762454082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83103efee7a79dc295fc3967a2301a1d8c1f21792cf276911916ce5c44590998. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZZ762454083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541025cdf389791624bfb3b312bb5fc08a0b6a5794fbe2a199d30d20e8c6ca7a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/CH6542460680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4354f17161dfad9a449e36d5686d0750e824d5ddead6dbd2b47d99a0e308b25e. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZZ762454084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298afabaad9a6efb9252443ab4cf2e17b0c6b918abbdca30aea4a7b0496a822d. 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/QZZ762454081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa94623ac22fb91c8f10821ba0ad69497a6c6a36b063a06577196996c6de1b6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:22:33Z), 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/QZZ762454082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044427248015af29a0d01e903a0cdd71f0f85f4afc0b81fb11e72945700f0f1d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:18:03Z), 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/QZMEM2476476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541025cdf389791624bfb3b312bb5fc08a0b6a5794fbe2a199d30d20e8c6ca7a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:44:10Z), 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/CH6542460680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bd5ce32870067a0b94d8a233fd8e17b39ccaca42af27b580f90e687cbb266. 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/CH6542472568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d199675a1ecf9604b9ff5a71f5a4f3593c5a43a6e681f058c9665d22827774. 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/QZTBD2474793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5766a31820cde1ecc7214dc360e2d7ac58a797d51d7b344625293cfed73429a8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHN32554792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7dc9154d9f679e17976a6f05857783c4f643a4963c720b48ffc20ab7ed08f2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6P2556079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fe1b5654078f221bb30206e9b106278988234d4d7fa0dccc94aaaa09a5fc60. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMER2503044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada35ad815e583681d54adf0205ff3b91e60b32ee1a891da24370a755a5cbba9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZMER2503046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a486d38d218b3e58b54543fe903a22bfed7f8d5ae9d3583a6e38f4f4844a93a. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZMER2503047.