Iwa Kusuma, also known as Iwa K (born 25 October 1970) is an Indonesian rapper, singer, songwriter, TV presenter, and actor. Kusuma was born in Bandung, Indonesia. He was a pioneer in Indonesian hi
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 0x74b1bdc172dcc3f3bbf755df163c26f6dfcffdf7370c49f5f3c1b76400608507. 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/40c97f26-cb1b-469a-88f2-57790b98861a.json and https://artists.proofprofile.net/proofs/artist/40c97f26-cb1b-469a-88f2-57790b98861a.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 0xd6168903579e9d57da0dca26a8ee3b96dfccb37a0fc4bb67cd7f5a6a3971f970. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/IDA181203302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecfd7f7c57b2ba894afedf8f61c0331e6c4a28acc1005a313eebb8613e82c48. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/IDA181203303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0b0201f310e700c8ad729d564baf2412aa86a472fd3368d5b2170b92b9c44e. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/IDA181205002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc8bec71e4e13c32d57a19cc7a9dbb1e5794b0f9999e917b3fb929775efead5. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/IDA181205003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bfe952ae93f955092aff446dd014016e111ae63b0dd81edb7dd700cc1e663c. 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/IDA181205006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372e47ff0bb5e7cd726a8b4f67f93f4b8934a21e7634ef933833facb70c49f7c. 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/IDA181205007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b65c57a912eab130b9dd6ae2a9c302345c30848258ad26d329bd2459069816c. 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/IDA181205009.
BEBAS LEPAS - IWA K Together Whatever Sessions (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0029999195987779df0010c871372be4500b90b696a1d7048083cc7a199a360. 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/FR10S1875795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b7c44ba04315006a6097504987592b15f560a6bdb08af2a63ba56d18f7c4ab. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FR96X1896112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb3b4a7ba6ca7a9b8932719143b2adb6f226f1e92db9e164cef9b3f68895027. 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/FRX872289803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdae6efa0915258e6755da94df3a41fff21e16587f74b5fb7c3d08409922992. 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/IDA822300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d6b275534406ba474136f58a1ab453d22665d320fd3ad977655bc2da0a9c1e. 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/FR59R1588700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0313622e6aadccf47c8fb2982a81ed7e967178280a54bd5f50cb2a6cb057d1a6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FR10S1438028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659e8a442919b8b3b402e0ad67a53bb064eb11e53a6fb9112284a954af370ce2. 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/IDA141902083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c765990577390d20c995ddc87b71014442195d3fb9d5e07bab99fe961629b64. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1944354.