thumb|Saint Napoleone Napoleone is an Italian male given name. St. Napoleone of Alexandria, alternatively rendered as Neopulus, Neopolus, Neopolis or Neópolo, whose feast day is August 15, was martyre
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 0x78b46d0790a33b190523765ea55fe3ce69f117aaeedcb14ce69eac4f8cc0db35. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca4ddeb1-eadb-488c-b961-c20c0d8752f3.json and https://artists.proofprofile.net/proofs/artist/ca4ddeb1-eadb-488c-b961-c20c0d8752f3.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 0x242af417a6027ef8a08f5e85e37844757b9cab178ea03e987364405e3998da0c. 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/ITAZ61900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e995c55a89c9230479aa965a18601f17b1b95625d5e02c1cc572f38c4bb92a. 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/QZFYW2177463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea001413957e091fd956b45d363784e145813d0c34ba67e6c14e96eee3cc21b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITK252110092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079a6e4aa71fa6923f3b45e4cb62b4fef3b7fbb0087f92b0086a1e108154c2a3. 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/ITK252110093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff1770089700fecc5be0d018ab0a01c04cd80b6c2a8cb05aa4677fea8da56dd. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITK252210048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf06ddd43b99828e2cba93cc0dbc967e123dd2df6b61e5b81da949c86c3f1be. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ITK252310036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc260f95129204e4d549984b19a1bb6c98198e35c94a744aa057f8a5b3f50bc. 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/ITK252310046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c65cadcce3014f26b22eb257b881c147dec6ab4d5c5d87e52d33cf30e4e023d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:02:15Z), 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/ITK252310045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8e20402ca3b814a0da6d077170138df229d7769b40f0c473d31fe1f08a39c. 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/ITK252410031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991da78241725afaa96bbbe6fb3846c9d0f6a7c156a9103fa320cf300d6de06f. 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/ITK252410050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260905482d8a1cabed23fa099d0d16a048e170720131d47c0fc621da73aa1b26. 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/ITK252510040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ecf748612fc6d435fae511f3c1e2cfd618568f59d7349700fa7afb0bec4e77. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM72201976.