Sandro Giacobbe (14 December 1949 – 5 December 2025) was an Italian singer-songwriter. Life and career Born in Genova on 14 December 1949, Giacobbe started his career in the early 1970s and got his
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 0x848b715daad1655e761b55679f736bd27e5c079ba44b8997710c100fbcbcc2bd. 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/6a139ce1-0ac4-46d7-b7df-8ce7c080f919.json and https://artists.proofprofile.net/proofs/artist/6a139ce1-0ac4-46d7-b7df-8ce7c080f919.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 0xe16f0599220bdcafb6fb8ac035acc1bf64346aeb3c75564767ba92cdee9bf627. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ITR007500998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4454a40929b7311c57106ee38a1488eb7d55d684c53172f7bd836b27ea1f4c. 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/ITR007900635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf108e3b5466fc69a7545e1002a811369efc87167d6173c468fef61c5d9172789. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITR007700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed27eb28b7e4d2e669718036d274d96dadd5f2d5b5d958e9653a8be0d1c1a37. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/ITR008001036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e4f55a5494eccab1f016ccf8e3db956fb1094307fce94409a7f094bb4fddf2. 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/ITD560201067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56844c0022837b5a4e7fce49bf19b34c02a30b419bcb8b62576bc13b442aedef. 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/ITD560201068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e56991af6d46c05a5918d3b031d604fb325bebabefd5dc6c22810dde39e5e7. 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/ITD560201070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576ce16a3dc5404a2c75dd4bb6565e5741adc69abf65df1209c9c2cfedb9bb6d. 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/ITD560201071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccef46946be22e6b85d312f9cd6a8f279c3bbdf35f5ce3c35c73337d7efa36e6. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ITA619801976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cf43a99a65a9211384b0c78cb8a53ad79681d78c870a1ecba15ad0e0b38312. 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/ITA619801979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeeec2c674cc109216e2a36a49c19e54e9c3177d5b6736f07608f7f667ca55e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR6V82111461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ac12d2098d61b8ce95c6782b309bf3cb2db7d1d99d26f2229eca01b443d786. 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/FR6V82111471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f5c41cbe815fb18f201a34953ca7c638d323a06a68ed63e93392f809b24f42. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR6V82111472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe672406341ab7b448007ca67c91883aa3bdd98ee234093baf52267f4dbe4d85f. 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/FR6V82111474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba3558be5c3533fd98587b00709a4d3c659700720f4705744355168a1050554. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/FR6V82111464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca0115b53490ef97542475b0ebf9c2307332aef96abdfe9137abe5c0047336. 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/FR6V82111475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cf02ffdfebf6f101d50560238d85f86c18b0b2ffc4f4c31d3f9f2b8b010c6b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FR6V82111476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f23a41a34c90cab6092a77c6f3822f1c5306d606d388477f1b9e24dd61b636. 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/FR6V82111477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e23e47039dd5643e4ee8b5bba0615eb072b369f1576a2367d047f2cbfe045. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR6V82111467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806fcb5882b22e4519c3517280dc9a22994eabd057ea9d3944c52d4372674c80. 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/FR6V82111469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd9b8c51f834b5f769d447f8fb402cec22eedb38cb0bb36c8920c4bf2a1c2f8. 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/FR6V82111480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d045b74eebad02b6d71aaf335096a0f6a47d98cbfc0758e1a62886bd7de8d5. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/ITG821400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678b2183485ca4b02c0111bb05d1364aa04058f3d50d01c57a3004d72ae40d84. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES5379900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a169c7bfe3e09b65178c125b5e399364f1a1de69e18db3e422a3e8437ab03f. 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/ES5379900131.
Signora mia sapessi... 50 volte ti ho sognata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56149545a00bb159ce03949a6c8e0a5033564877b984db6e9151aa0f7722c219. 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/ES5379900132.
40 Años de No. 1 en Español : Los 50's, 60's, 70's y 80's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56149545a00bb159ce03949a6c8e0a5033564877b984db6e9151aa0f7722c219. 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/ES5379900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e53f8b71370c4bcdd6caa5cfdbb8f33fb099a449bbbba66f2083a5ad405ca2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USBL10100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c93127c59052774e766616a0b32256a6a9635d10c3ee4ec5e64f4a1105a0f6b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES5379900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4c6dc546af385e94a82e4aa0e3f0b07d18023182c2ebc689d32f406ac06aa8. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/GBWWN0801630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb7dd40d8043b86d47022f5a68523421c12f27e29377e54a6c8798674453c0d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBWWN0801660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c93127c59052774e766616a0b32256a6a9635d10c3ee4ec5e64f4a1105a0f6b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ES5379900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56149545a00bb159ce03949a6c8e0a5033564877b984db6e9151aa0f7722c219. 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/ES5379900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d2021465ab7e3b932dee084f24968198346d3c6f84ba584d5b32b3d7f9616. 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/ITR007500981.