Cholesterol is the principal sterol of all animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Cholesterol is biosynthesized by all animal cells a
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 0xa4b032a0734fbd2e7445c569ecd5f9eaa7233183e55110df225d7b7200d24908. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40f90b2e-6ef1-463b-8973-d0f7158dd178.json and https://artists.proofprofile.net/proofs/artist/40f90b2e-6ef1-463b-8973-d0f7158dd178.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 0x97cac9ab1847f37d4b37c125314a26c0b5ec5520598864c95f7078c3f2e9216f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USANG2064537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6182dd6694c7cb8c2c1d9322494727f7432d7162007f3f6964b5716f4c731d. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USANG2078479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1ad1cc01507096be827a73a2903df8e320d94a653e137ac5d9e33d21700fb3. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ESA122499409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6aad56637e4b6fc2a9162410d9bcb758473adb0b90ec57baf7f885a56b3b93e. 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/ESA122499407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f507480ed090eb88f737f264657641b683a209cc9f1e143b0ebff6a99395f17. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR59R2145372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1780043bace11b5b839c4bb1b55018de456c7366ad2ac5dfaa3403a0d1bdb722. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX762106113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d041603d5dd8b01e8a2be6f79a29142ad1fbbf4b1cd0e99d675311e9777963. 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/QZNW72329493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f316fa6eb4954dcae08e75eb233f498b4fcebcaf3ead0f9b400742b5cb556b. 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/IDB832402902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8b3241bb8c2fd0b92cd876057e9e50c83ab8414b10b9b57548df4d407db10c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:11:12Z), 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/ESA012408270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974e81a744079347520dd89159dc4b40966c410e6652eac54cf42c1e9560a160. 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/ESA012528161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec56726f58b94c1705a6b563329be0cd234d6ca49c6c6f02e7611408219d24b. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ESA012535207.