Gumi or GUMI may refer to: Gumi, Iran, a village in South Khorasan Province, Iran Gumi, Nepal, a village development committee in Surkhet District, Bheri Zone, Nepal Gumi, North Gyeongsang, a city
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 0xa54d7a9aaff3e0fa43dd02d3914c4647ed2da268422e93bac3b4076500af2c6b. 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/739d1ec7-b58d-4257-ad4e-f73f1021294f.json and https://artists.proofprofile.net/proofs/artist/739d1ec7-b58d-4257-ad4e-f73f1021294f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
[VOCALOID] Night Sky Lover [GUMI ORIGINAL SONG]
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 0x9fb16b833e805a899e7770b4c95bd00bdfee06efa773f1a2fb1760b291e1283a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TCJPC1582996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e1b115ab5e388aa7676bcdd496810a72a6d30a9844aa23d010d9bce5003d1. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:50:45Z), 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/JPVI09806040.
KodokunaMatenrou -LonelyCityBuilding- (feat. keitaroKikuchi)
菊地敬太郎と弁財祈の世界をGUMIで味わって下さい
Appreciate The World Of KeitaroKikuchi&InoruBenzai by GUMI
Work on mowing and growing vegetables, wear Rhodonight and Aquamarine and discothe live house
Matenrounomegami (Goddess Of The Skyscraper) [feat. Keitaro Kikuchi]
ローズクオーツと呼ばれて (feat. 米土句太郎)
RoseQuartz TO YOBARETE (feat. KutaroYonedo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde44a082724ef1b11a7c4e5604b1550518f6aa20375607223c7a30be9169f390. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:30Z), 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/TCJPL2041404.
KodokunaMatenrou (2020Remix) [feat. Keitaro Kikuchi]
Still, it's okay you can be alive (feat. Pegasusu)
なにげない言葉とか、さりげないしぐさとか
Resonance from the Thread of Life (ENGLISH version)
Welfare and Nursing care are tough part1 (feat. KutaroYonedo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b8142f90ec861c3ca651a8d44c84ebb5bcfd7d952453d509199e42769fc73a. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/TCJPY2342905.
I'll turn the live house into a disco (2023 Remix)
Hatred bullet (feat. BenzaiInoru) [2024 Remix]
YUI (feat. Tsurumaki Maki & Tsuina-chan)
matenrounoakuma (feat. KutaroYonedo) [2024SalsaRemix]
Harunanoni Bitter Na Heart (feat. KutaroYonedo) [2024Remix]
THE COUNTRY IN THE HORIZON (feat. KutaroYonedo) [2024 Remix]
Kawaikutegomen (feat. HoneyWorks & capi) [Cover]
Hiroshima Peace Travel (feat. Keitaro Kikuchi) [2024_Updated]
Re Appreciate The World Of KeitaroKikuchi&InoruBenzai by GUMI (part1)
Yokohama Love Again (2024megpoid_V2+V4) [Extra edition Re Appreciate The World Of KeitaroKikuchi&InoruBenzai by GUMI]
There will be no Christmas in 2024 either (feat. KutaroYonedo)
Umon Torimonochō [The Solitary Man] [Remix]
Until the wey such and such a time two people
notunokageri (feat. SHION & Keitaro Kikuchi) [2025summer]
WE NEED TO INSTIGATE MORE (Megpoid Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6064eaf26508ad0853ae42c8e4ba5bb3eea4c720f96fef93f86187fb7dcf92de. 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/QM2PV1875010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe925787fe89b518c21954c7cb60de4364be5d73f6e0dd54e66d8c16610422595. 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/FR9W12100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d46276ba1158c14178b6ebe3e94e8b146c7402fd88b59f5374752ce693fd090. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES82478083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134e1552b10a3c6f111062af2b231fabf61000a0f663240ba619554c5a8992d. 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/QZFYZ2420481.