Growth/衛藤昂輝(CV:土岐隼一)、八重樫剣介(CV:山谷祥生)、桜庭涼太(CV:山下大輝)、藤村 衛(CV:寺島惇太)
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 0x63d486513367a6280027b619803e2358c675e2d3e339fde8bb289c8eda9ca217. 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/db4db5c1-af67-4454-ae00-77805802c155.json and https://artists.proofprofile.net/proofs/artist/db4db5c1-af67-4454-ae00-77805802c155.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 0x9d686a94ab195da9e3187f267147dfd82e6146596cbe9c54c56869649fac7f1e. 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/JPD641500367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc297b708ba7b6341d0ced359e6b8164178b8f1bd85c90704c1331e5d7f13403c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:21Z), 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/JPD641500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ee1304edbede13405e815b0e765d80693cde4bcabc6e47496b5b490d2a2691. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPD641501066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9890eb1d4d2ab8934bccf1604cdbce75e6d088c131bd6d8c5aabef196bd131fb. 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/JPD641501067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a9e68b2b3826e1a06c38232255017a504141eb021c1986f45d348f58b2290. 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/JPD641501068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad367ffe70e541840c3acf20406a70a12018d5a0780d25eff7e7deb3f4602ef8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:49Z), 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/JPD641501036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6f2566582c948796c81f9567a094c1914c618d87b6c79f8f902298633e16dc. 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/JPD641501037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd46bf9233900d7669bddc7cccefb39bc476a9d76d3e1e248ce78f138833108. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPD641501038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcef4e2a07023ed56be9dd29fab01f930268bfcdb8c6dbf3b1ed7565034d5c8. 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/JPR501717730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f847ecd455a2ec189131f82db1c755a3b6a5a430216d08440e6d29fbed265f4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:30:22Z), 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/JPR501717731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98631e100a4f3b37cb71d92b9b992aca3c2db578b43e0e5564e110eafdd2839. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPR501717732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2934e79de0f8492635b2e776708fac3e9f890554b870b986a40ef242dda114. 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/JPR501616020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6802c383c1764512b6e3ee19d8bbab5f9ad52a0ab1f6a6408760358448753eb. 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/JPR501616023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4781788adee5e82322c038cebf38e3e197eb82e79af7df5748fa7a9e5dc376ea. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:24:14Z), 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/JPR501717735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7da6f814b659c91463b956adf0eac282b6d83bebfb3d4b141b81339c1ff2d8. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPR501717134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873147a54c06010454c23f74a0c8c0c536f2f6acee7f0f7b6b8063835bbc9c70. 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/JPR501718319.
TSUKIPRO THE ANIMATION 主題歌④ Growth「魔法のキズナ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bac64badaaee4a6f0762f96261a4825a4e3fb520a0a9b18ae6b14e4d4920522. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:05:47Z), 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/JPR501823636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb1fbc40d1a541ed14a6e1f5b7e0da98627f29bc739f7e56205fa0198c55bc0. 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/JPR501925878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb958245bd4df7f6b4805e5f4a0921ec52579bbf5ca2bcd20b916712734383510. 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/JPR502030505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5069fa14f91c11a55ff8909b4f60ccd2d1d0b132e8c963ab2cbc96b897cb962f. 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/JPR502030506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b522002a58a4e528d560ce20bca95854c29fd2fb9717e4a49c484a2c01745e7. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/JPR502035515.
『TSUKIPRO THE ANIMATION 2』主題歌④ Growth「自由の旅路」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442efc01e2a6144b064fc0efef914655c4c9a5e36a37347d6c3b249cbf144440. 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/JPR502204721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408a595a80a6cac3532ffa0423f43d23ee2095a52fee7c023b0268b812c7672b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPR502204722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fabd07de1bc1cf192a0df70ee13d46f0939a3c30274174bdb29939fcbeefc31. 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/JPR502300907.
「TSUKIPRO THE ANIMATION」ENDING THEME SONG COLLECTION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc95bb08abc971fc68101d6273fecd8b5f1ec9362c288e4a4a4eec68393a0b. 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/USA2P2444644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1d903d2f5c44b2fa54224190c902716ad85df2c40afaa2bf32ad331acb923. 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/USA2P2444648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98768ebe5302e8ad6da52a5a4a215a0a414efa848e33c2b45b7124dc4a6251ea. 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/USA2P2444652.