Japanther was an American punk band established by Matt Reilly and Ian Vanek, then students at Pratt Institute. Japanther was featured in the 2006 Whitney Biennial, the 2007 Performa Biennial, and the
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 0x70b0b330dc902decf2154c3e120035799cae15145591ec890872e7ee0ca55783. 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/d0ea28dc-f70a-4f20-b587-0468d4a4b10d.json and https://artists.proofprofile.net/proofs/artist/d0ea28dc-f70a-4f20-b587-0468d4a4b10d.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 0xe43b132387e08e6eccf3edf1b5cf4c692af6e53af88d6e6760d5fa80a0f5a5ac. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/US99F0502815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1016ec317d8a970634b62a40c74c13500e7e7ac5c8c1be1f9126f256d8bf9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US99F0504602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6c5816f75617d9de0e6f059fba97e325403a2f5bc11552300e732c1128e2f6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/US99F0504606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab72ccf35099a6a6edd61db7b6fdb606510dfc208576def815d4b2ee76f4be53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US99F0504607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d32077a86e669a41faa90aedcd36592a522c95503459f6a8ad319890094370. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US99F0504608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d20a11791583caa0635a555513a72f830b38a878aa4584151b78500e788d6e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US99F0505106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770cf16272e9bcebcd05d00754742a9f8c5ae3d520ad7e1f432e90000e663332. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/US99F1005503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aad8fe2301195923b9180d9ac59345f2e906b95f17bce0f56db37f0de6d1f55. 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/USA2P1641421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a877070e6b66e883da5be950c0af6336e463fe69480d5b195227a7f2006275b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA2P1641423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb38de1ca125b7f5b473b0554b4784f69fa400fdb92a5a45783ff65fa148b9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P1641425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a69db68b6147ac97a17d8f78fbdc897880a4d67bd7790607636a56538e6f6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USA2P1641426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffd32ad84bc820262a631992c971b69f2c925010eaed4e0d0e28d550cbf1c23. 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/USA2P1641428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afc4ea13a61b0fa9935cd18cd42691f04d6b93f6fb0a1314eaef95a5dd5f8b8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P1641432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0275a1650fe8245bdd0f7e38e488b983f4ede677d41cbc9dc342dbcc92ce4ca. 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/USEP41231011.