Sandro is an Italian, Spanish, Swiss, Georgian and Croatian given name, often a diminutive of Alessandro or Alexander. It is also a surname. Sandro may refer to: Given name or nickname Sports Sand
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 0x1ff2583ec7a65785bdf47ebd5b25b9b75945de0333697e3058c4328d8d8fcce2. 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/ba8be020-ee13-428b-b5a2-da7a7e05e2b4.json and https://artists.proofprofile.net/proofs/artist/ba8be020-ee13-428b-b5a2-da7a7e05e2b4.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 0x7f898ee192d302674f720079d128b66b0a2f1af1fc24b7ab7d223e5fc33a175d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEQS91600788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39542fe9dcf8d666004a217e04d4542905badfd6985bfa2d25fd9a2467896b8d. 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/DEQS91600797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd6ba05678f49cfb6e6e448dcee18c8ad391e6455b72a9c18dfcf862b922006. 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/DEQS91600790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aa9cbaa32fc61495339ac3a7b4225571cd1b9e5ffa4cdf9c74f46bee2e07e4. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/DEQS91800175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf615d7e4fa4465a1b31815c71f78623ed35296ae03de9054c069f8134742e68d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEQS91800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf615d7e4fa4465a1b31815c71f78623ed35296ae03de9054c069f8134742e68d. 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/DEQS91800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037a9e47a02d24dcd8f1c647cc92c7ae9c152662ffbddba0eb60d79e6b66e8c3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEQS91700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037a9e47a02d24dcd8f1c647cc92c7ae9c152662ffbddba0eb60d79e6b66e8c3. 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/DEQS91700086.
War er nicht gestern noch verknallt in dich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbadadfab3a3f64d912173f9072f2a02287270b7e9c11fbed687f9f78bdec65. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DELV42300647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123a56766847d5281a9334cdfa89f35c227f43cf40b5ee8a2a0b2dadda9a9048. 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/DELV42300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc414dd2407b6dcc98db09abf525c5c69a04d5f8fd34fe601fcaa95995937d56a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DELV42300649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360f851e8a2a6cae58d9b406e4f8e406bd69f259d3debfcf00180d849a42277d. 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/DELV42300651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808eb76b761d857cd9ddddc6ac2f60c6ac8e6a72951bc6432977999507851fcf. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DELV42300646.
Per un bis (feat. Mistaman, Sandro, Frank Siciliano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0723a7ad2a0f9ce844ffcd4f459600752bd13b4d6f951a8909b1311cc22388. 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/TCADJ1730634.