Cocobat is a Japanese heavy metal band, named after Bobo Brazil's finishing move Coco Butt. The band formed in 1991 with four members: bassist Take-Shit, vocalist Ryuji, guitarist Suzuki Shinichi and
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 0xe0f011f15f9789663e43f9b484c8b570d29d13412ace63c61ad10dc6a076cfd7. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55c4f482-a97a-4b66-bc39-93b5c7557c78.json and https://artists.proofprofile.net/proofs/artist/55c4f482-a97a-4b66-bc39-93b5c7557c78.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 0x0a73dbf5d08b5bb13376422758226fd6e470d278d244c5c03d0a0645aca348db. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPTF00900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f17919d7377839a3c0a80ac3b869992ac3dde6b35db4bd27e4d64e9f230a73. 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/JPTF00900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b72931bc73f15d278cbc424acf3e073555dc133d2ba5b43b35a45d5ccfb0b0. 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/JPTF00900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c4fcc4818cee8ca39ab1174c8f44c65245cc358c0e132da250c68d316eff1. 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/JPTF00900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef00f0f69f6d2551e7977b12d5547e8ef8e4031c511ba798d2fc75777668680. 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/JPTF00412504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350f13b51abbfe8872f1d95f71e9a79eca7f9748f9981af41e778e66a28ad06f. 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/JPTF00401512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113e37e7e1c9a328932ea25bb8f49d0efc4fbe6c0a7914d018dc2c2013e94590. 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/JPTF00401513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64e0807a23dc3cdf8c4ee6ab5fff374d003e50359efcb81836138d5184c458e. 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/JPTF00205607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d02de68d25960149ce219558cf07bcd3147815843f8d765972a3318966858b9. 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/JPTF00205610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634962a68c2cbf1545782e9c74c7c6407546d8362246a1877d2c490796386047. 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/JPTF09610213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123e87e0769db61ed0ae47f5b4639c41402fb916b1ff54d3d4a1602790bec049. 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/JPTF00015401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6d97462c704930a8ef93966cc328b8bce6b0ca50ec2f896bba0078cec7b043. 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/JPTF00205614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62fbb0316290d52e5113f6ff1dd20744b06170b1b7b634eba9de8a7152b7f9a. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:28:46Z), 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/JPTF00205605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b8a87b7752dd9bbb0899395a174b65c348f5614df6635f35c6c1dd23311e77. 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/JPTF00113902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a5380403d0b068b84503bf4b02208e2e680cbd4d536342350a37eaaf9bd8f. 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/JPTF09910501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8909d37d6c52600f2c26963421bf7ae1d18dd9ab41ca153eaeda8e9aaaad56b. 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/JPTF09910506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69c8f4e09c72b0d9a9fc65bc0a915a0dbf25b5bac631c494d9769ad3858b0e. 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/JPTF09610201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b7984bafb60b7c9f74d87b57375e3507ddc14800fab280fda294c39b06d58f. 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/JPTF09610202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a3feb88f979f295f63560d5b73d51e0e13641c0636143a3cfac6e4644ae4f2. 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/JPTF09610203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1301fcd01e5ed7b9cebe129f5465d29571cb92175ad6497aa9e23976504307. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPTF09610206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68535f2c3320dfa623130b458842c89a5b63e077df4c2b6e11c6d8d1f2edd67. 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/JPTF09502305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfde744e93fd29314cd9a8a907509952a50e0e5f8d471c4e97e4ab25b5884d3. 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/JPTF09304101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3444c19a6b44a17c0e8658e53f7f86a4024299e9fa1318982618f438e937af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPTF09304102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567beb87550ba6b7168422e2a4f957b61c968f9cb7d7aa4d61aff1edc0441efe. 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/JPTF09304103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c80b3ddddb4d8c3572ebb6255dfe5ef94599f6da4419630509e9825e32d6ef. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPTF09304106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b1e7bf09737726c8d935c82c0eab98fcc92908349e26faaa50eb41a1f52b8. 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/JPTF09304107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69112328d6221eece2f0b537e17c2ef94d44f7f4f8a9c0bbb19e1997b133b672. 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/JPTF09304110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e522aa624e5545fb28996970e84611bbe51b4395535240531bbbf20d237887. 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/JPTF09302102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf162c988a685fffe3a71c8620bb27fbcb8d01dede2f2890d0fccfc5b9b39c961. 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/JPTF09302104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4811da68956bc3916dae1988a1daaabc24734290eda2bd07f05a4576cff435. 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/JPTF09302105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125db4866d14991b8152fceca9c41160f0d4f5807564b791ad9923b7b7b78277. 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/JPTF09809102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa37d02d62fa45ef845d3e4df7fc22849643f5011c2536221523cd972f3663. 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/JPTF09809103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c9a53dce2c116e74148c073eb08dad18b9d09128eeade38e231aabf421b5d3. 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/JPTF09809104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a94fc68c021395a6437fe27213377d84eee210d2aacb7e2280a9364e543206d. 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/JPTF09809105.