Fiersa Besari (born 3 March 1984) is an Indonesian singer, songwriter, musician and author. He is best known for his music, which is often described as an "indie music" style. Besari has made several
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 0x0941ebe9be05a4bddcb1eb3848ddc01b3d9a720585dfd51ca722c9ec9cfd8cbb. 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/08d75a24-a9b1-431d-9428-2901a1e04ab6.json and https://artists.proofprofile.net/proofs/artist/08d75a24-a9b1-431d-9428-2901a1e04ab6.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 0x3f1903192de60cfcd43a6f3fad1e2a78dcaa47f0a86ab67783e985cc4d943d20. 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/FR2X41915092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52973dbd64aab7e4ed046d36e07cf516ca8ca34d2fb083bff5ff3a089c0dc8c0. 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/FR2X41915093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fc815b3953c3009408ac545e419af5ec8efe2d56a0645378952f1e2ec53e2f. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FR2X41915097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd77cd539504189844c310b18ff589208416ec297ea1b691cade7441a7f738. 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/FR2X41915099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa7cc7ec0501031d5afb11e895f6216d7e0670fab47a410af5640c71c86c11. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/FR2X41915100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195780bc9162f353f8aabebb1425aea6588f08d9c6deb08b287000edf29901a7. 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/TCADD1770602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc41f1a87e6e31324fd064970799892bf7d59456856f17aa9bf4346d5276c343. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCADD1770608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb51cb7bb723a9620bcdcd19adcebd54fdd90a818366b3c314155d4c8516f3e. 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/TCADD1770610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaa9c0993ec008740e29c61fb290fb81121bb63825640aa86049cec4402b46c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCACQ1682869.
Pelukku Untuk Pelikmu (OST Imperfect: Karier, Cinta, & Timbangan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62a264f02dbfebb98f53a4c6a636c557f86aea6e5520553c4189872afcfcb0c. 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/QMFME2294551.
Kembali Untuk Mengulang by Collabonation Mini Camp Artists
Sederhanamu Istimewa (Cinta tak Seindah Drama Korea Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e81bdd6b4ca348504c35e39a8f52e7bff4b63d8917fba1f7b89e9fd6bb3bd1. 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/FRX201729906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b723420cf983bf18b088a5bc04bada3cf9847744e2d9734d9e19eac33f8e77. 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/IDA182232992.
Librani (feat. Fiersa Besari) [From "Voor Milea"]
Voor Milea (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b413c29830a6f594d1f84bf7045d80c4a169d152839d73b440669d585743268. 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/IDAA22000001.