SolidS/篁 志季(CV:江口拓也)、奥井 翼(CV:斉藤壮馬)、世良里津花(CV:花江夏樹)、村瀬 大(CV:梅原裕一郎)
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 0xa36903ad154321d8d925b82417849863cefecf2c7bacf06f7528a8a76a22803f. 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/2e865003-eb3a-4e7e-a933-13993b01b504.json and https://artists.proofprofile.net/proofs/artist/2e865003-eb3a-4e7e-a933-13993b01b504.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 0xad7d4b322f40dc279d4c7abe4d5d034637438b3b9d720a0935b2e44487ca0ed2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPD641500991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad1772342914baab6da625078f08fe574145ff7ddaf595975df606bf7bf036a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:45:01Z), 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/JPD641500992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72720048d828a43906c07258926db497344942c984af045194779b6230881b8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPD641500994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82df5aa6163a3cf82443036ec85c4e61a2f256f3ce36b65cb8666bab891ddde4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/JPD641500995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c3ba7025ae1e77775df77004ebcec089279a443ab37dbef7c6b467ce76b347. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:30Z), 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/JPD641500996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa82c02169b5889f5e3d744f21a292f90e0fcd44d4cb871470aba75e3b6ba84c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPD641500997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33c6b6067ad6c3497b795973321b6c982a77065191035de27be554ef722b5c8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPD641500998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad5992a311960c703b2b32bf1d0167f4f08aa1bce00bbd5d87071eb3287e4cd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPD641501008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8433f99af659e2df5315d677b1dc4515a35b04688e34e5dbb1e16611f9840d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPD641501009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd2cba6564bcaa3e8cc79872e5939d503402a4cc1f93397214163e7086d1e26. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPD641501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8d475ed4849c9cbf289276c5ea441bb7b0bb7baf6a933b0ee4e1a59633a058. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPD641501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8896da3a69195a3a03b9fb86221954636cea7eb988acff416ad33d05bce8cd2f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPD641501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8279fbb563cc0bf74baaff1be88aa1a73021692f94d19d4b2ddcf4748e8e796f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPD641501081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08b00eb576c1b69789c9edb8101bbd6eb43bb5f7d16a8cd48bb911994bc56c7. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/JPD641501082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9d21101e76eb773b5872eca4b47636d68410c31c72c622a9f09d3478c8cbbd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:50:44Z), 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/JPR501616026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1272eee99d07700d49843ca75b687ff36d7b01d2044ae6d984d88f340d95f6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPR501616027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4ce34c025d920e29336f6c3de91ee174528c140f5bb075081f5518fae9ef43. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPR501616024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a80ca37610bd42ff2b03d8f288f248efe960200523269a919af55a08739685. 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/JPR501616025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624db2bd0017e95af730f05cad24ea453094f7fa771aad003db4e350463ef5fb. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPR501717867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b00078594131e066d8c6f2911115657779db56b0e0898fc466f022eec8eb65. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPR501616111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bcc780c3f9da23f95c4c53dbcddf328acddca206ae20bcb5c6d50128e9ebf5. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPR501717144.
TSUKIPRO THE ANIMATION 主題歌① SolidS「Burny!!!」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9725f6a99cf0df43ac13eb410cff0e801fb1bb80c28b5407032145c45c83b13b. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPR502031754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7db4338a77d33b9befc7e472132c29a0a1ae10a69d721be640025ec7e472ed. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPR502031755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736f219a1386efd74b56e22652ec7a1f807d2c76e1b8830c681961f6447ab639. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/JPR502035517.
『TSUKIPRO THE ANIMATION 2』主題歌① SolidS「LOVE 'Em ALL」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afd5c66f4eae04980157ac9d0a5f0bfc3acf8c7c8ce673458fedfceb732848e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPR502147139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312e714bf8bfb70db4c459b73ee1541c15c0e0372202523829d10cfabdd58380. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPR502200645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde21fc9309c88e277b7cb1efde1349a548686c3bd7c087d1a8216f6e30bdcdc9. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPR502200646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f64e62fb99548269e42701cda892e99187007a1cab760e7d8707b66cbe1988. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPR502300923.
「TSUKIPRO THE ANIMATION」ENDING THEME SONG COLLECTION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0193eb224c0b534078b3e3f18d3b7ae4668826e589f131b83ee65ba1b5cc1f02. 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/USA2P2444641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99584f88ef24b7e7f8249578237323d31057de8bd07e6d001889932feeab9305. 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/USA2P2444645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656bee4b5a10cce8c4857301ab573264383ec2ef68e0c556978f4c213a747d97. 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/USA2P2444649.