yahyel are a five-piece indie pop band from Tokyo, Japan. The band was formed by Ikegai, Shinoda, and Sugimoto in 2015, and Yamada and Ooi joined the band in September 2016. The name of the band, "ya
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 0x70811ed5c624053e8b579b564810478a7c04c2e3fd10db094c5a9c5e4466897e. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8091dc87-b65d-4ed8-87e1-904165ee2405.json and https://artists.proofprofile.net/proofs/artist/8091dc87-b65d-4ed8-87e1-904165ee2405.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 0xa0c2f0706bfa5979db54f4bab3a207237f3b89cac3ab6f5226a926de2b35f25c. 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/TCJPU2391923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9ee5e7be232fdd6b643628a362d44c5b9fa873e2d24e87256538aac4a49054. 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/TCJPU2391925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6c02cfa0a22d27858e3624904e82a33186d730fc4629894f6156bf771a8550. 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/JPE471700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3372c5ac38efcc366b023224d526ed00d63b8b4abeba78ea45ca0f81cfc6c9. 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/JPE471700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60d567c6cfada9134a50628205563289221708dbd7f63fc8a98be5fe960bef0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPE471700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48d158292547e256e64c41892a347e304309d0e6998ddbacf1f9b6640a19d2. 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/JPE471700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ffaed6c6d3552a13e66c237013d30033ba60275632c27a95699d55cea5e087. 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/JPE471700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1d12ba4158e00807b122adbabec7514467e8735c4007d2f23f9f906f3ae042. 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/JPE471600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a9c0453fadd316d1fc36fcf79fe55697d4c5b78522971798a2f363a79f6164. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPE471600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3321e4728458511daff31b310b6e15d1aca193c9dbe098b48d27d444bc95399. 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/JPE471600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b8a572f9605ab03b3fa4ba8ed071077e26be30bebe600522acb850d561438c. 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/JPE471600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b51f9671a168939bb5ae9f0a7c0c733caf52da9bc829bb0ec774ee8f821a58. 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/JPE471600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf589d502c663fbf7a21ac5ec1dbd480107a489d23f1639882a4090c904221f8e. 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/JPE471600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62aaf37fa6401c58a87148aeb9dd9f15d5ca6eae32542ab2135804fc313cd82. 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/JPE471600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbf6ed25cb7899b0e22b617b2b873bac6febf6c9d657d988987682557f7b5f3. 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/TCJPT2248059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ffa997e13c120129a9b88eac98c09293a001cb06596821df81020c21989d34. 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/JPWP01801428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14288ade9c4cc37635892a9631c2a1ff0f8bd25b341bd849e5952849e47d1ad5. 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/JPE471800000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6c02cfa0a22d27858e3624904e82a33186d730fc4629894f6156bf771a8550. 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/JPE471700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48d158292547e256e64c41892a347e304309d0e6998ddbacf1f9b6640a19d2. 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/JPE471700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbc48ffb2174617e1c252b3c48f876b8412e46426cdfae317034995dcb85f61. 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/JPWP01901255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba37681646596c604d807d1deb642e0a5a4cfcd21e559c384036bb71ef2a4e7. 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/JPWP01901233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d152bd43c7890f94e7815ebb7fb484c96028d8b27804f086cc2716ea34304e. 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/JPWP01901307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644b5182c64f24e72241e3427bc388c45b6aa931955feec39b70d3a36ec152e7. 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/JPWP01901308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02547a57e4335f0d679d06187ebf1d6b4caa89c49f1e520ed108de36bc9e924d. 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/JPWP01901309.
ビジネスはパーフェクト (feat. スチャダラパー)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab17991d6e86a6ff4c42cf3a36e52c7a5d73bcb3e8d5e4be4d9c32f67304c2. 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/JPWP01901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c087796d1eaa6f8f116d6d83c6c4d6e376d752a58f7d36ce0eef96a89b7109. 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/JPWP01901311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7504d0c29e96d9e801546cd6b964e3dae1f4f119a482bd820713cc50ff07cd. 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/JPWP01901312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0aeae8564d975cf6b14b1b1119d47f249a44ae10b134b8d5eb86e1e48d65d2. 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/JPWP01901313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc541c6d7d35bd144b0a1cc1f7365837258026224cfc6313fab1d1de842c7cc2c. 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/JPWP01901092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622bc3abc659fee77be64cb0b18a6217cb380f4d05123cddf5a83876b2cf2cd2. 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/JPWP01901315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dc14d5bee22f84346879c3284d25189cd80898978cdb4d1f1532d177c46b3a. 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/JPWP01901316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c36d8a2ac4f94c5b273b8330cc7112524e6ee2ee4fa89bf6275b9698b66cd1. 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/JP92L2400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11272fc2f3f20bfb7593ebd233dffaa43040cecc40652515761b53f0ac91776b. 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/JP92L2303740.