Caronte is the Italian, Portuguese and Spanish name of Charon, the boatman of Hades, appearing in numerous versions of the legend of Orpheus: Caronte in Caccini's Euridice Caronte in Peri's Euridice
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 0xa858635514510bb77276d94816eed0ffe8808f94dc80ec88df02132937ef9da2. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5e52d53-3c28-478a-956c-d210f9fd8e0d.json and https://artists.proofprofile.net/proofs/artist/c5e52d53-3c28-478a-956c-d210f9fd8e0d.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 0xf28919778b173bb10f6e237015238131dbb6d80e3e97ae3215e1cb5badf3d022. 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/DENI11900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62f13e466847838985738c87582dc033ff109dcf50891163e6549a3a1bfe563. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DENI11900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c918422409f97d2713011ee8403fd005104767e1f398eab50f3bcdb831fc946. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DENI12300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95c81775bb7b06ebd5fb780b8f737e4a0c3b4bd1b0d026db902645da50a82a6. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/DENI12300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc368d20ac6ae0a36f0a5a6cdedb562d18acccdb6d43dda078d1a638755a984a0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:12:51Z), 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/DENI12300289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970161a1835d8b1e810c193b211aec1d77af5364af6d37fba39783a3ed75cd05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DENI12300290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f295d0fa34449e9bb9277103ab68f384f9037f49572caf3a769db54f7c2865. 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/DENI12300291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a1cf41be4e96f6aacaa38dd10c1965ded0ad67b0b59182e65b37a42ec6cc43. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DENI12300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5b654754775a02df6e9eced3b8fbd245de1a63459456c4656df224e6cfecf6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DENI12300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c918422409f97d2713011ee8403fd005104767e1f398eab50f3bcdb831fc946. 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/DENI12300294.