Otello Profazio (26 December 1934 – 24 July 2023) was an Italian cantastorie, folk singer-songwriter, and author. Biography Born Otello Ermanno Profazio in Rende, Province of Cosenza, Profazio made h
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 0xacd5956267f5dd23f313850b9554e6a6faeec6336425e2ea234edd6d118fcc1b. 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/05f93771-24ff-4845-9bf8-e331ffd2911b.json and https://artists.proofprofile.net/proofs/artist/05f93771-24ff-4845-9bf8-e331ffd2911b.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 0x195c698b4e1346ddc63a1ba48ee157bcb606c8b26e6c1501a4dc91da87bd65bf. 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/ITD015803564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd3a45f625da9366e3d1956f44a85105d8a38c98122257d8476cdd44fe8bf32. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ITD015703535.
Il brigante Musolino (CON LA VOCE AUTENTICA DI GIUSEPPE MUSOLINO)
Il treno del sole (Profazio canta buttitta)
Profazio canta Buttitta: il treno del sole
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2300fb9c9aa8219d16e1ddfbeaa76ef5ffb89978a4fd5ddd1fca5158adfdbc. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR6V80212623.
Vitti 'na crozza (Il cammino della speranza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d367fc66e92970a1bcb8e4f81d41ec03c2846c4b02fe068c45ccc82f823874f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ITQ002401907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad6cd3dddec3ecd70b1aca0baaf2bbe768f7a4765225a928c940dfc8ac13fbd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/ITQ002401908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908f103a2e615989018d24520132e47ec918677edfc915a7af45d50a643d6928. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/ITQ002402235.
Gesù, Giuseppe e Maria (Capitoli popolari di storia sacra)
Il brigante Musolino (Con la voce autentica di Giuseppe Musolino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893ae85b6c3e46e317b9cc6f54e533e4d4cbdd98c6ac72977764f57de29254a4. 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/ITQ002402274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66f0038029a77340ec147a847d433ca75fd983f1feafbd8813721f45b830172. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR6V80212609.
Guardavalle in Calabria (I paesani cantano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce15e61755f824960194668674df677f8fb6423ac5191e70e3aa990c7c1b7a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6V80528989.
Otello Profazio Collection (Premio Tenco 2016)
L'orologio della Passione (Signuri chi di Gloria sì Patruni) [Canti e tradizioni popolari della Pasqua]
'U ciucciu / 'U figghiu du mastru pettinaru (1953)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619322839afee09f1a210e38c681b9da2bf226bcf6d82741ff5260315fb607bb. 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/QZK6Q2577190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01737301b0e7aacf85437b7e2df092da5889bfafdb45b94ca033b121d3995bf8. 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/QZK6F2564241.
Il cammino della speranza / Vogghiu 'i ti viju
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508208f20aad4dc6be6dc01a47f39893377eb0bcd43d05b2ca69980ffb31bb86. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNWR2545230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a23b7fa970188dd74d971f15ad8f45c75dee1b8b250999ff660f7a2a329940. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTBB2581735.
'Mmazzatu a tradimentu/La vecchia crapa d'agustu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2072fd367d51b624b3669a783ebf79feb7f0c7f8c94076cc9b577ec1882cad58. 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/QZZ7L2539341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f1dc34e39a70e38678d1e8ccd72d15ad3367a6372f0be4fccc363540f0c08a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT3F22503755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79728856e53c94c97cee9748298de62186d1eae868982eef9fda7d856f11c5e. 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/QT3F22503756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c6a6881817fc57039deb9833cfb9f02414f28792a9f23d9477022cb01034c9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QT3F22503757.
The Best Italian Traditional Music: Sicily (Folk Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487c38fde17d6c6c3f08321dc2a4ab0fa6c1bd32dde00018529db2f8016cdd96. 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/ITD541100746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487c38fde17d6c6c3f08321dc2a4ab0fa6c1bd32dde00018529db2f8016cdd96. 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/ITD541100746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b6646d412734a1f240775de8b99054b218cd0fa7f54ac7561038dd9dd2e59d. 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/ITD541100754.