Francesco de Leo is an Italian business executive in the field of Information and Communications Technology with a particular focus on issues relating to Green ICT. One of the Young Global Leaders at
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 0xa52d292572e9bd3a7c6cf3e6115c06f1f8e66c80584d7abdcfb097481fddd90a. 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/1da5d17c-3ef1-4bef-b178-1cd8c30899ee.json and https://artists.proofprofile.net/proofs/artist/1da5d17c-3ef1-4bef-b178-1cd8c30899ee.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 0x198265e77938c46e4e305510faff70a130b581a61ca9e5140cc8e32cf08e65b4. 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/ITLGE1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d30306d399e196fe0ff3c63845026d492b3e9c98dbadac52b878e9dfb885c01. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITLGE1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02b3c4fb8b99f624c03788c6e4ca997ea2f3533b1cfcd5af4171fd6eb82b8c3. 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/ITLGE1800030.
Andiamo A Rischiare La Vita (La Malanoche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3070da29036eb82e191e5a09878685656ca881ec679201dc01febd85f6612a. 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/ITLGE1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25736e222d40b7e0b56f26ff29f408421e265fc672366c7bf914bd2ec89c345b. 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/ITLGE1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e4d813d68f4077fbcfff61b0b168a0ab17696693a1027a484ca2c93f5ac288. 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/ITLGE1800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb181eed4ceb60102e74ba7805608379ddda99120a149e9f06acb5507a8d782. 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/IT7LD2401626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd3da9c3c3e5baeb185624018432a4d2f7d9292bd33e76d998d535c3e46700f. 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/ZZOPM2227451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96722858714471b44d252d2f36fd7f79c975b70136eae93146df421e66a97a2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITN5W2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0719f276af04204d793793dca331212e065e3d211f5862115f2e1ade4aecea1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITLGE1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198265e77938c46e4e305510faff70a130b581a61ca9e5140cc8e32cf08e65b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITLGE1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d30306d399e196fe0ff3c63845026d492b3e9c98dbadac52b878e9dfb885c01. 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/ITLGE1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e00ec3d55b7413f7636b4ef4ee1b9896fba624b357ae08909421884066dfe. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR26V1549031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0fd112876ce555570b435f674cfb170e123302eb1ce3c94b1a1184e5326b80. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR26V1549033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96722858714471b44d252d2f36fd7f79c975b70136eae93146df421e66a97a2b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITN5W2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fae274025d4f0ada62bb3b7295132d39c4123c4fa6daeb7e5ee9b31a0ef142c. 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/ITN5W2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e5731ca8967e947238f445605590bf55c905eed0e606db03d897a206af7dbd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITN5W2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96be83a7ca36cc65268127853009be8ea40e89b7c29e6cca9bc6c17b84272f0b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITN5W2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1862394302284e8e70dbe1d9a446a9d7fbb03621029ba471403bca013d1af4b2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITK251710014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c80656027b4b643881688443d006854f4d0723c82bd7aefd039ae11ee353be. 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/ITK251810011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575cc73f74f263ee099903a02a182b21d966b9d184e3bfb458635f2a00123128. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITK251810141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f1e76b99436339e850c590bee0bac0e6b73d3e5f56487b402e0d6cdbfde459. 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/ITK251810142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb181eed4ceb60102e74ba7805608379ddda99120a149e9f06acb5507a8d782. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IT7LD2401626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd385e456b544a7b6f2d04ee225f53ebc723e52ae56555c8849d9052c3ae274f6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IT7LD2402534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d67b3259ff5b2da71256519c3fe3ac10a9bcc868947570881a0a1670280bae6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IT7LD2402535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f55f0a28d78d993809b5a40071a62c152c9dfded00cd06f1912ed0ecf6f03d5. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/IT7LD2402538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6422731e63561e642455ac67083baa60a4bceb3a8cdac6d4696573567f9975. 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/IT7LD2200647.