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 0x93f23d81a63495f0275970a975b34fb8b22d79abd394194c91a9cccc764d53a9. 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/2927dfdf-cdaf-4334-b8f9-af3d48f99cd6.json and https://artists.proofprofile.net/proofs/artist/2927dfdf-cdaf-4334-b8f9-af3d48f99cd6.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 0xbcaf64c4f6784c7f35776f25d7d8060ff7b8d219d98f57408c8ed73610e567cc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPX562100166.
TVアニメ「臨死!! 江古田ちゃん」エンディングテーマ曲・第7話
TV Anime "Rinshi!! Ekoda-chan" Ending Theme Song, Episode 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7510a298dd7112ac7de2620d547f1f5f35c9c18756c8d3aee77cd6c0cc21a07e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JP92G2100103.
ベイブレードバースト ダイナマイトバトル
シュガーソングとビターステップ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf045aef34d18c6acd9f8545203ce26f02f5a2142847fc451c92fe21083e315b6. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/JP92N2240280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f1b137b8af3144878cd5b4851f40655f2d2353517197a569b86f147165b99f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPV752206391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155bc1007fd7118e99189bedfdb028f3bc965c74b5cce181a68e3111b0325c9e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPV752205562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908713e02c07511cffbe88e481121a0def1f460f095b396ac6acc9c4ddcb419d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPV752206483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac6d93d139df99b67ef8727957e35e6c07738e96021760ac0f897fc50ff6c5f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPV752206119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c773f15f18716fbb6490fcc98eb33ecb575c7b9d007c15df0629a02ff0e42b. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/JP92N2270735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511149f9cd73d4a2f760b4331f0bd69d9dad31a8aebb5832efdc5972acaf1db. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JP92N2279497.
TVアニメ「ブルバスター」オープニングテーマ「トライ・ライ・ライ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9fdc3e15447ddcdc29131e1f5920ac337b23e2a24889a553481883d111658f. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/JPD732301255.
OPENING THEME FROM TV SERIES ”BULLBUSTER”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9fdc3e15447ddcdc29131e1f5920ac337b23e2a24889a553481883d111658f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/JPD732301255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e546e0ffda79213a213aa1c85ee6ab4fd4c15cf7710299084eeceae0e3af91d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPA652309674.
魔法の瞬間 - feat. 心之介 from ZIPANG OPERA, ゆある, NORISTRY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a0e1319bea40a4396f297897e1678c0b85638108887b6d87e7b4c62eb6f4af. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/JPX522200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128ead357d6a84eb2ac0ea2e0191b98bbba7c221f8c88520274ae9432100b6e1. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/JPX522200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24df9bc243c0aae45e6c60308ba04033a9ea2a5ae60c9037251e64b530e8fd9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPX522200055.
虚構の塔 - feat. NORISTRY, あげいん, ジロー from JJコンビ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9daeda81deab8c3fdbf1b5cb0cc606f5737b3974da52788e762138916bb55fb. 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/JPX522200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd536269d0bb25c54a7e8185da790205e9651c3746613645df529c8de9a26c6f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPX522200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a9bb80e15d40693567a730da53bb48fdf982650c1d370f746860188e119eae. 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/JPX522200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2ee4ef2cefd7502558903a1f45178a3aa08cd08eb7818693e9c36b38e40c72. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCJPT2214046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf64bc89d2e394a89203a3d32f565246656cbe3357a934e4c087380a1779a51. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPX522200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81b3e58064ef219387ba8f955b9d10f4d8ecbfbbc124f6d791f93b3d56976d4. 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/JPX522200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bc6c7a4604ab9166e65c6844bd5cf1c38be88491e7b570dc3d2f60aedf8926. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCJPS2243270.
魔法の瞬間 (feat. 心之介 from ZIPANG OPERA, ゆある, NORISTRY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a0e1319bea40a4396f297897e1678c0b85638108887b6d87e7b4c62eb6f4af. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPX522200056.