Alfa may refer to: Businesses and organisations Broadcasting Alfa Radio, a Macedonian radio station XHFAJ-FM, a Mexico City radio station better known as Alfa 91.3 Alfa TV (Cypriot TV channel), a
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 0xae083c866aed8db65f70f2fae968fff05fc8cbe22be447ee8e45835a8c72dd30. 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/856f9b73-f927-4769-8aa6-3bb29d9d850e.json and https://artists.proofprofile.net/proofs/artist/856f9b73-f927-4769-8aa6-3bb29d9d850e.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 0xd957ba8b147eb4c8017e4a3fcb5d21ed7b893f7fe80b76bfbacb3d174ca0928f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCADO1806381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b745ba467d7695637022492ddc8cb7a0f0a866d2107d39e2af0fd5e0eebd7a7. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCADW1883440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d66424fecec20976760fbc6ec395a6360facdc1bd8afb45fad163e6eabe9a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAEA1961858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a690c16f0c6d090436cfef81bdd39524616b34e6f769132b4c74dde32f50730. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCAEC1980654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad5a293dc08f4e14c9127ddccf8803a0e678eb19edaff9270fa179cb069f7d. 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/ITIWE1900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649406c3517ae138e5c046fa1f1bc9e5a94b05cdd27b356e3b8bcca3cc5eb050. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITIWE1900128.
TesTa TrA Le NuVoLE, pT. 2 – prod. Yanomi
SuL Più BeLLo (Out Of My League) - prod. Yanomi
SaN LoREnZo (feat. Annalisa) - prod. Yanomi
SnoB (feat. Rosa Chemical) - prod. Marz & Zef
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b8ad13ec31b806b0fb834d24ca688a8a55714d5b82f62de192c184f9a0cce6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ITIWE2100285.
Serenata (From ''Forever Out of My League'')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0456fc75a0cccc6f6a17d8b2fcdeefa1ba9a3f6855c270b5a38ad09db46a1025. 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/ITIWE2290115.
Non so chi ha creato il mondo ma so che era innamorato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4920b533e0c7bd328e297431f03e07943ee1c1050de8cac19beb9cc958d87a32. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ITIWE2490008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71f8058336aa6216faa70ef052916ca6931ce9933f8ea13d019443b32a90f1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IT2UR2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296838626989826dd71581a7b440f11d1c18766c01cb4d36179856de75ecafc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FR84R2500040.
Non so chi ha creato il mondo ma so che era innamorato (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8927e3849aa8d3d28b3fb8b3374009ba343310e3581b388f59f95a8894ca79. 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/ITIWE2490005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dbb7237402fd3c531549a38fbaf2cee73695b657e83bdd4991bec644514b08. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/ITIWE2490002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4920b533e0c7bd328e297431f03e07943ee1c1050de8cac19beb9cc958d87a32. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ITIWE2490008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b3df6c20f71c0e0c8a2971b185a2db96cdb031b0b912e236f2db909cf5f8d5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ITIWE2490009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011b9622fef7510971a98b47586a882419bbfb4386ed47209b83b44b97fdb7ae. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ITIWE2490010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a4e13ebac75e9b149e47dc78f826dec4720ba9a8d194b5faf3fd307f1d4bfb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ITIWE2390107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a874eaf9e78abe0df06eb2e10bde59ed76688cd4b0674a146e70bd9e3049f1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ITIWE2490011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158962efee29f04f260fe0e8bf9d0d404c64795e44bba903c9f6baef48d21650. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITIWE2490012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fea9f457563e5ddea79381f24497000d199a85ba1234c35aad6b5438a61dbf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW2493885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44fb22c9cd208037b249551741ab4deb09141915bd1464e0a34bcc18eef0a0b. 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/ITB002101273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21153af4bcf5b73d28ab9f3b257cc2a93cddb0cad7f2e29369a7193aa3c0fe9. 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/ITB002200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1be1ac3a0c23d38f997f2c3ca230e79e9176928411b433202415ab5469ffce7. 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/IT6KZ2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eaafd906fe3f55ed6cc97d999168e24636d57bfc723887065a3c4173708d21. 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/TCADQ1805445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bde477cd1c54dbf907c9b0aab1659f2ed8ba81a9e0b6666a391be11a9c2549. 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/ITQ002200770.