Tocchi is a village in Tuscany, central Italy, administratively a frazione of the comune of Monticiano, province of Siena. At the time of the 2001 census its population was 28. Popolazione residente -
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 0xb8268d37728da79561096c834bb5017a0a0de89ebf16bcb6318516b04e5c992d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab8b8438-21f4-4a1a-9a09-4cd0be267448.json and https://artists.proofprofile.net/proofs/artist/ab8b8438-21f4-4a1a-9a09-4cd0be267448.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 0x5b65f19a3b91ba419e0cb18904eb6e61ac7735afcbb95ab2830d9828a5d28c18. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:15Z), 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/TCJPR2202557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317c4cabaa14cd76d0064f499b2ef63528be2d8be4d46905217dbfbdab726d3e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPG1849867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca928224c1c2ce28c3595d16f0932d411d266009f2d53136d535c5c7d554b2fc. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCJPG1849870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bec2765b7968f3bf331897d1e73d9951ffa6834731e211c9a6546796b8e7b4. 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/TCJPR2202558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7489b1cfcd0189a0f300d2ca506c9b4de548dd491e9dbbdfb8acdb80636fecbc. 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/TCJPJ1963418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023baf512fe188874b0d51b72fea8f355b8d30cc4f013683bfa50c2ed46541e7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:00:54Z), 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/TCJPJ1963420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc26805b76bd7f83a58cf1e138f5140abab3e1b190521ee50a3eb3087f4809e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:36:30Z), 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/TCJPJ1963417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8b122ab807cb5dd7ebe8965175230647346c4ce6608a592a15db298bd9717b. 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/TCJPJ1963423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e0d0df229a5eccf2b1dbfcc2a4531367befa807ab67147a28718930c96e1f2. 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/TCJPQ2147215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891778e2e8f87496de8ec1ff9ea9fed6514dfc415beddba8377df5af7a11c25d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:30Z), 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/TCJPQ2147222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621003a65c9d701a673986e9fc0615bb52e1a9ce0f9abba9e14d8648b0feef21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPQ2147209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7d9ddabf8c868153e9e914741bb2b880f96fbacae1497bc7581c4b6f146756. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCJPX2321558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30beb3440c2508ea8a0a4b2603490fb206669b2acfbcb342c0272145de719980. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPC2474280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b381846e93876b0d798e4fda5d86d4f0ce9ac6bc64ddf074ef3ec5c192b8f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPB2496160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a543203106c47c531d8befed9a3e4090425945b60892d70a3fd1c29cd7a78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPN2184324.
Lycoris Sprengeri (feat. VIGORMAN & TOCCHI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8572f31bfea9f0e0e70a5b1fc67943c3c9837919ef3fc5d6a0296d47a6acfa54. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPM2020965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c09926f2cec7d988990f9a7b3a4c6c6e98f29698a9c66fe6edbffbe24e0416c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPT2202468.