Rosa Balistreri (21 March 1927 – 20 September 1990) was an Italian singer and musician. Her hoarse voice charged with melancholy and strong personality made her a Sicilian icon of the twentieth centur
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 0x6a0ff4d6148e3d50b8a2be7a70862563cda609cdb28e3aadc5a2c202ce11991c. 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/235d2f06-2ef1-40af-a294-691fb97f5c40.json and https://artists.proofprofile.net/proofs/artist/235d2f06-2ef1-40af-a294-691fb97f5c40.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 0x51236d5f6d8edf37318526c2610f106b4ead609fd8314ba291be9a77dccbe90a. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/ITD017800454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e6850a3def6c078081abdbf53e27acc539d6e67fd77636e44f49933f0d4eb8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR6V80719794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5c05e0c2e44951b28f41e3726ad6f72a0cfc0da9c9545b5ab01e01a05c5e96. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V80719799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e938137e93b7e90bbf5f9966994d974528ada2e021a38d4a000b47746586d1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6V80719802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a33efd391a309bb7141bbcb53ee5d69c3508571a6cf966dc113308948218f43. 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/FR6V80719806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4763d87f9f9e8b999fea277f0e6ebabfdbd203fbb9a367ac7b440e649825642. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/IT0371002805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07674747ec2d420f5b16babd1f7fd03e3fcd6330ab500a1d5a07a8f4be4e935. 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/IT0371002807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e4a258ef572f7d6d139788f24d4469174743f1a7b228229cfced500629415e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/IT0371002813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16206e34df7e6c4bc681c0163d060d480f96198abdda3b8991f8a238daa5c6bf. 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/IT0371002820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d40886da5b173806f6c6711a6000e3053044871b66addf6a1637fc50dac40fe. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/IT0371002852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ec82982398f017bcb349a5977ebeba1d4d2bdf8cba537427640fcfb209e70. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/IT0371002853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfb3e1426aa4630f747a6a9c7c96649a5c275fa1dbe0ae005f62f41bd4dd935. 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/IT0371002856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d385d085cf736d2c3e544070db48ae6ae1ae809d122c49426dcc0a26957749. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IT0371002861.
Ama chi ti ama - I tempi della vita cantati dalle donne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5eb811ffe18e93292e7d99dfadd845d01baa963f4aeed05bd71b3af487976a. 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/ITOOJ1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ec9d1d271d239c0df09b53e638c5a429a2feeb5d4194c8b5f5ca816b02507a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ITOOJ1800028.
The Best Italian Traditional Music: Sicily (Folk Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e035b655d7b8fb41a83707ad99c9faf1b75863afae478d3fd9a80d271c3263b. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ITD541100753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e035b655d7b8fb41a83707ad99c9faf1b75863afae478d3fd9a80d271c3263b. 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/ITD541100753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75032f6aa2fb0a005c73fac6a38286d6ff101b74695166115d9ffe26e512c1ad. 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/ITD017400778.