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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f9bc21bee9aa02d0639ff3c4f71666ef79854d412d85471989160b4c09119. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6c92434-2303-4b85-a797-f7cc9550065f.json and https://artists.proofprofile.net/proofs/artist/c6c92434-2303-4b85-a797-f7cc9550065f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3ae4fd628546a928f08c0fad0196a8c8d7a80cfff298d6dc06746b02e33587. 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/JPPC02312110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386bee028d940e7386a06c633869e1d394bf6ce9408e311ab657e6860cd1bbbe. 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/JPPC02310859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4190583197fe4813fc723cb47660754e4e2b1404c3f42774582dbf169601ef5. 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/JPPC02410575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbc5ba6bb639d7763eb3ca6ab6504872c130b207a00edc42ac10a21410dcc1d. 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/JPPC02311522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0601f16df1c6c5324bfc89f665b8b3a1d33a8586ad96442a7c969af411588b6. 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/JPPC02212493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb3094281cc002e9433313eaa01362605ceb844510d299c3e64b3c2b67d1eba. 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/JPPC02213247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3676cf591c086a86044bf99410a0b658533fba3e38513e044d624162e55f7d74. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPC02410576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710970545247b1ac19e88504b75bd0b190418b8be70cac7b0829c7cc4d9b276e. 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/JPPC02211934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc91aa8caf42757f2490877b452413343a5106b626175505a42066dbf395518. 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/JPPC02410430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386bee028d940e7386a06c633869e1d394bf6ce9408e311ab657e6860cd1bbbe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPC02310859.
映画「ザ・ファブル」&「ザ・ファブル 殺さない殺し屋」サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe381d00b96eabac47d52d8a5473a06a540c7f778b14b7bc804a91e8fc7177b4e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ922104966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fb6888c3a2c95ed6183d5bc9a6ebb3a1ff49fbe9b81026cc472aa6910a5145. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ922104975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c2170488ce8ddf62918251851fe1721643a288006a1464412103a917fc7955. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ922104980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3afff31b36f6b5aaa3613121a5df31a0899c12dfaeac51af8d1e576a9927b66. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPZ922104983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1d642252a3afcd880646052a76c2510c0a0fe62ba5dad4caa75b14422105a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ922104984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046440a7dc975e4b58903fc90470185a36debc8474632604cd841242807ac326. 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/JPZ922105002.
「サマーフィルムにのって」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85727d799112348217f66285223837e5273ea3e8f2e8b3a206073b8e3619953. 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/JPJ902200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ffaf82b18cb9fd287951af7365468aa6325dd3a1613d985554d282693725d9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPM902200065.
Nihon Gasshokyoku Zenshu Hikaru Hayashi Sakuhinshu 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce38906c73e032484321ad30734b4271b5e65f00b697898b539e4afefcb6e9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPVI08007330.
Nihon Gasshokyoku Zenshu Akira Miyoshi Sakuhinshu 1
Nihon Gasshokyoku Zenshu Minao Shibata Sakuhinshu
Nihon Gasshokyoku Zenshu Akira Miyoshi Sakuhinshu 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf41f9ba9894fd3b95f30fa1a77544f7f5cbb97eda169a5a3ae049539aa0f34a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPC02412732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a89206f3a57db156fad2558e7b4c7e97285692d060772dae286cb011064ed20. 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/JPR502413246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216b8ef6c4f77d6e08039d8176c8f81c229e8d3a0ba40829defcb3da9228f118. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPR502413247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404c21dd78ec2172ec0e20e12cac243e04f1c57ad278f694b04ffcd18b4276fc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPR502413248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c8331f6a694cdda87f4df10f7384fd5014a42f17479c164e1f78e1b71c787a. 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/JPR502413250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f184b5c8ed4b3c0f8f391e9c675f710246362f79a984133a2f5fe15a96fbee9. 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/JPR502413252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8de468d754807f75bafb6776fa625fbe08c7b17b4b4e8f2f9f88ea4ed35738. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPR502413254.
Furui Riho Billboard Live Tour -Do What Makes You Happy-
Do What Makes You Happy - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55bf78bce7fc44a32b023551918b27179019113684fa01bf25a474327df2cbb. 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/JPPC02510289.
Super Star - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91af653fb8ea1c7cdc5ab1af4dd6e5107c0053a589bfa9ad2d6731d0a7d50a96. 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/JPPC02510290.
Candle Light - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f3eca879410ab66425cdf898553cb3144079fe6c084ed0edf38406442710a1. 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/JPPC02510291.
Dekoboko - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d75b0579aedce13ca3cd7fa990abc4f54b50c299639cbc57a8f6db5257d32. 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/JPPC02510292.
Your Love - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163b40f87e7d2b01b64e22e46a580d10cb102cbe6626e0e81b552aa72fd1d3a1. 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/JPPC02510293.
LOA - Furui Riho Billboard Live Tour -Do What Makes You Happy-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10149758f583b5738a816e52fdc5ad964546a895cf9adb22a5b088a2b400d16. 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/JPPC02510294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dbee7333535e928225695ce1797458f6da63df3c5fb02c718ef5dd273e1454. 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/JPPC02413464.
Do What Makes You Happy - Furui Riho Live Tour 2024 -Love One Another- at EX THEATER ROPPONGI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5adb9370b5efea76598a6d551d6ab09b697aeb22ee55b1b6bc30ce79995965. 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/JPPC02413466.
LOA - Furui Riho Live Tour 2024 -Love One Another- at EX THEATER ROPPONGI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb96820aec6f3ecd647ab7cf8557df3835b5254a93d1b67994d683e2c65c313. 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/JPPC02413467.
「午前0時、キスしに来てよ」オリジナルサウンドトラック
Nihon Gasshokyoku Zenshu Makoto Sato Sakuhinshu
Nihon Gasshokyoku Zenshu / Akira Yuyama Sakuhinshu 1
The Min-on Contemporary Music Festival '90
Nihon Gasshokyoku Zenshu Gendai Gasshokyoku Senshu 2
Nihon Gasshokyoku Zenshu Gendai Gasshokyoku Senshu 1
Sadao Bekku: Violin Concerto - Yuji Takahashi: Contradiction - Yoshiro Irino: Wandlungen
はる なつ あき ふゆ - 林光 合唱作品集
Nihon Gasshokyoku Zenshu / Tokuhide Niimi Sakuhinshu 2
Nihon Gasshokyoku Zenshu Shinichiro Ikebe Sakuhinshu 1
Nihon Gasshokyoku Zenshu Teruyuki Noda Sakuhinshu
Nihon Gasshokyoku Zenshu Hikaru Hayashi Sakuhinshu 1