Tetra-Fang (stylized as TETRA-FANG) is a Japanese pop-rock band considered a "limited rock unit" and was formed to perform songs on the soundtrack for the 2008 Kamen Rider Series Kamen Rider Kiva. 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddba397b288e0b975a40c9e399686a9c638ebc7894c25725f0e9739b56019e1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89a36499-4ff1-4275-ad12-b4524958271c.json and https://artists.proofprofile.net/proofs/artist/89a36499-4ff1-4275-ad12-b4524958271c.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 0xc5460371605d3616f8f32439901b75b8932316b7c730dd69148cc095dec9d42e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPB600824101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7c56c5a7990d7c164ac57f622691e65390fa13cb982846563c4dec6436ea3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPB600833101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba5e8d3f4fb88bcf2ed9833034d2128db421ca468277e7127676f618fa14ec2. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPB600844903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f3ca9ac212ab844f7928ce361fb7fbd1c9c8a514fb55bfcf337218032f6742. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPB600844905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95fa56a041faabcc114ddd4bd6c4698d27242728180569cc0e0a185e135b421. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPB600869701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e19befd0b219bb8739b75007bd02154d1cf8e524a4fe1ebc8869fb4ed57eac0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPB600869704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a0630ce9bb5a4ca7079b5742c6d409cd9af027a0133343fda680c1062e8aea. 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/JPB600869705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4a7435188a4c8b700ef74d7ec98065bb631e39fd6cb24a95dcfc9271f6ab8d. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/JPB600869706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb164788a7342ee34953236332d342890741e816bc9749f62b55f9ccffe04b24. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPB600990809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0b5b607845ed443fe6b86d0ff6ecc8068ac26efc62e87650900b01265672b0. 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/JPB600844902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f04edf01ea04359f958edeab5b0c4dfa12512ef497a33134fa118ec1944cff3. 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/JPB600869702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7c56c5a7990d7c164ac57f622691e65390fa13cb982846563c4dec6436ea3. 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/JPB600833101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f3ca9ac212ab844f7928ce361fb7fbd1c9c8a514fb55bfcf337218032f6742. 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/JPB600844905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce1254d5a7fd89d50549c7a8d9216d01ebe23eddeb95caf2cdd0acc6283311c. 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/JPB600869710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a0630ce9bb5a4ca7079b5742c6d409cd9af027a0133343fda680c1062e8aea. 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/JPB600869705.