Danilo Rea (born 9 August 1957) is an Italian jazz pianist. He is a graduate of the Santa Cecilia music conservatory in Rome. He made his debut with the "Trio di Roma" (with Roberto Gatto and Enzo Pie
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 0xcc00a5b478fb91e425a2c4959699992f37559b7c5161e43fc00065a1c8715cc6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f8bfad0-9f0a-4ca4-a013-9ce32e385341.json and https://artists.proofprofile.net/proofs/artist/5f8bfad0-9f0a-4ca4-a013-9ce32e385341.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 0x9228fd2ab3b3afd73238b19b456ce5679466145ebb1dedb24bcc64d734c9cd39. 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/ITK601700336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddabbc24be3477ba92dcad5d8b64edd4a15c1e9fe9677aa8da3bf4e2fbda066. 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/ITK601700337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c2f3b24c8406908d721a44c13aa895bb177dd30da9311a24e4b20b7551174b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITK601700338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ceddf5f98143b4fcf73f61107b3e404319afbe98bcc42e3873ed235ec310b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ITK601700339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfade6d7afa281de39ab21e6e42891688285ff9200ed8724f2d744078e99ba1de. 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/ITK601700340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219cbacd3883d0ad1df9848946a3279d1fa872620c7404632355fc3b790bcd6b. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITK601700341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23673c23154d549c057ea0afa485db9f41517ad92e201ce4ca8feef2cb8cbc4. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ITK601700342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e5e22d63c934076f384a28bd9ef1e045cf25bdb93edf2cd0ed6be14c63cd4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITK601700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6a87cb5a811c0688d61eb78a94af706cab10b0f075f66beda6788acbe5a28a. 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/ITK601700344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cc2bac7336fbb2c2522588bf6cbb08e60a45515af13f0de8bda08612e65b19. 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/ITK601700345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062148ceb014de4ffd6f47f6c13ef57a41668fc48579353b822d24c82604e55d. 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/ITK601700346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5df2c53d4d9a05c7494d7975acd70a7adb9c526f811598b7335c6c737d38fd6. 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/ITK601700347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e80da02f9fe6e459063934453585a36ff937c4e5c48f7bb2b467ec4953a730. 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/ITK601700348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6ddb98ad5ed9a5d1d2e6203044688b3ee0b81325df3a26ffbad0df149f6e24. 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/ITK601700349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff51842200ca0436a6716920c442b74ca70bcac4043811d495deaeb9d56fb9ab. 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/DEA891101001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2befe4f331c10582d207a2ea75805f985585839ea48cb45f92c125f65ffd4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEA891101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46c5c52fdc16091fb7ec3a268ca386a84c32f49432c9bf42af15dcc49e84b4b. 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/DEA891101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb820cfbda32bf080f3968bcbb34cfdfd5e1e446c23de8f43803581511c2fbbfb. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEA891101004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4043b5edd9858311d6592484ae3f0ecfa738df4e15865216aa762bbed357023d. 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/DEA891101008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2275e8afdec996aeff49b35d1d6e1834c77e0a62e98c9488af5a839498ae2655. 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/ITKCT0700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be5a38f6b89cea29fa4c09094eb940986580225fe2daee87ec647612641310a. 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/ITKCT0700033.