is a Japanese professional footballer who plays as a goalkeeper for club Kashiwa Reysol. Club career After attending Waseda University, Kojima joined Oita Trinita in October 2018 for the 2019 seaso
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 0xc0c066ea8e37b259a4fd1e4653a67551402aed7a68262d664e85d05ffa6471c8. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a49f3f70-3a39-4908-9e28-3dee548e50c8.json and https://artists.proofprofile.net/proofs/artist/a49f3f70-3a39-4908-9e28-3dee548e50c8.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 0x12ea7f8256901860be5959dfea1960225e31447cadf6b445844540e6d3a51b14. 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/JPV752408682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe867c59d3bf25fe8fa4ad2de434661b6844c8a28b3d266bbba0e0e469cc681bc. 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/JPV751800382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29634e2f19ec4e06229b411f38d393a8de68f22f9d18cdfee1ee62dece445ecb. 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/JPV751800383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51fda1f782038d32f5350dc53c5e05eb9596aa264f8e666807e41db265c520. 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/JPV751800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70d67fdd5672456d4b0c0642ba481e05d9b197f2b2e0e682fcce233d967979b. 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/JPV751901116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20f94d87b3f96373d638a775a90e7aada623d6d70f6e3e983838dddc5419e24. 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/JPV751901119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e315bd5afc9d0ace5cad335da6bac4e3f0fc03791ccd9d7dc70751d5a2b2650. 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/JPP321700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf913e8c8a72025b640d8fca4e8846ac8204ab36a24c186cf376d88a47c28cf5d. 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/JPV752408401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c592db7b3e52bedc813e488099a34083b494aa8fbefbc69cd7aa6fda95afa9b. 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/JPV752307525.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d419b7f803b77dd6647a488afed26e5932c4660c7729d3e1128f0accc497004. 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/JPP321600432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a862672266cad668a2d33fd1d9be90cd4f4de71e4114468e3dcac239f4df8e9. 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/JPP321600433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfa4e435f1a13695b96f53d34f6f4d6755d85daf16a5180e33977cbea8729d5. 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/JPP321600445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ed61787060cfb024fb6aef6f952e975ab0861729ea3be4daa621ef91fa486. 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/JPP321600435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e817163b43fa5e5aa28789c6be139680760663eb1f934abeaa815c65403d67. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/JPP321600437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aa895be85aff32be811f4530a271907b98813851d8c821217f0a039b71db65. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:29:35Z), 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/JPP321600449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835ffa754c9ffe4e454d18e08c9e33ae1cedc66980b5e28b872903ff48ce961. 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/JPP321600450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c292210f87f89c75b6c061c252f3e7b0e26a1bbb6b74b57e4203ee3af49f3e8. 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/JPP321600454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedffca92ab8f3ec234591e418133549530d082b8914cfa711b58ae63d194dd7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:32:04Z), 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/JPP321600443.
TVアニメ「W'z《ウィズ》」オリジナル・サウンドトラック「IN YA MELLOW TONE×W'z」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c4c87b3c250e1dab5fc4378a517a14e144ea5860b92571f02be86da03e9cc7. 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/JPV751900879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb94988da2e25713c8119f6ba98786304a6c0458b16f24317cc50189d6a0b3db. 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/JPV751900895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8d4a12965a2c82c5900291ef5ba72eaf3e4971968b60a5d0f0ec48a168efd. 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/JPV751900880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf04638be7bd7d03a8a4ae3072ef2550819d296200f920c934c7091205d1e59. 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/JPV751900881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfbd0cee31ea3789bc41b66aa7610d29898dd688ae9d4c597fe613f0952479e. 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/JPV751900882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebe429895cd7b7e6c400981cbe3252c0bbe28806ccda459b5c59bffc05c691b. 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/JPV751900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c3cda2f00cbb1987f4669f42922cbad45d90f63903b69c51ff95baeb2c54a. 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/JPV751900888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a5bd5f4646360da6de4624e02074a9dd624eff879474d13b69b8b0aaa41ab7. 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/JPV751900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d7b3714bac8f92b5807c44abdada0484f24d47c5a6ec57ce8ae84dfefe673b. 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/JPV751900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee389278f3b237cfb08a8706022cd2bc333b0368cb4c5b51fa44274337c3036a. 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/JPV751900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48c1164cf747e6ec97db802211775e9ef9ad804cde9498597a212d9adc66216. 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/JPD731600719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91461e307fb08e4fe8f632c801baaa049d1d69f3468940a74dcf27d8e2589ff4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPV751901553.