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 0x98ae06d177ee93e1f81a8c75f605c5c35fcc7ff9c1fd52d0f8e3d3dda4597614. 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/82941da2-9bb7-4a1b-bf7d-55735389da74.json and https://artists.proofprofile.net/proofs/artist/82941da2-9bb7-4a1b-bf7d-55735389da74.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 0x8a170aa224dcaa7e5f6feebe71a3c3aa4309f6fecef86892b7c513f80eb8c46e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPT551800771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85159227c96a476179b666e749488a125aefa82134264a18eb8921d814402dc0. 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/JPT551800765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d007f8da527c4c1564ef9a0d6ac218ca307fe962efa0549aaa08cddbd478520. 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/JPT551800769.
ゾンビランドサガ フランシュシュ The Best
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cd7c0c831445be9f484725f435a9fe6642a2430d1d664d2d30d96975cb3559. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPT551800865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f93129295de1bb8663587f3370367da3f4914c32debdb5c4ce4e12c79e13cc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:20Z), 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/JPT551901184.
風の強い日は嫌いか？ - FranChouChou cover(TV size)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0aa1783b02101206926325fd9c593d5c0cdafec1a046294c17d5af5861691d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPT552100240.
目覚めRETURNER (Electric Returner Type "R") TV size
目覚めRETURNER (Electric Returner Type "R") - TV size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c21a51c6104282e42ef76f1c8f8862b5dd83c3dc368713cc8efdcf68043c31. 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/JPT552100248.
夢を手に、戻れる場所もない日々を/風の強い日は嫌いか？
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bda3d9121a11533a53afaab892ea4f328710133658ec47e1c228b5148eda11. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPT552100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4eace5c63c48581b2bacd3e58b11bb207e787bbbd93af172da64d82e0ac5a. 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/JPT552100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6255895bc161e7978df02e0fddb8e61aa0287a1a5507785679a3686747285309. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPT552100484.
ゾンビランドサガ リベンジ フランシュシュ The Best Revenge
イカの魂無駄にはしない～小島食品工場株式会社社歌～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e17fc81eecfc07d5f71c602acfdd9d7d61c41aacbc52485d11d03e8df1c2b1a. 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/JPT552100458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149f37c094f8b724e68ce73b6dc12ebf7afc167e94fb1dc122f4535b54380b6. 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/JPT552100739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd574b10362f0ac3b7ed1f63185c78939812c9044fea6a7242739db3e94a9bd95. 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/JPT552100667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0c608975cc9e56c8970a740aafa68fe231a9ce8eac68a32e4d9b78e59cd62a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPT552100734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bda3d9121a11533a53afaab892ea4f328710133658ec47e1c228b5148eda11. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/JPT552100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eccfc34bcb8f4f409c113a5e16f9d6bb5fa4dbbd3f4b666a5488746b96c364. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPT552100735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d18e63c222dc25a98324ddf80a20d07f5a90071947f033548c9d53efa9e8ffe. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPT552100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988ec7403e6af26dabe864b5bee9bce51147d25b7d2c210563a18bb1bbca55d8. 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/JPT552100483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aade713aa59fe004e19d17d4fc3a128c2357246f67e048b4c53fa06b3ac722e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPT552100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b70bd0d14b534ae057d6f918ce2da94b75353d82d01f7384e39a6c6fe780fb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPT552200865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed5621a2ac77fc4e10411e454c1652729b81013003e07f54767d17e0a629ea5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/JPT552100480.
今日はカレーだイェイイェイイェイ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43720141969b45be9b3ae9dc2605ae6b630c0eb674f122574d9fc634011f5201. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPT552100481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95be03236b5653017058ed3d47602f0fe233623a2f5c974fea1a11bf775b11eb. 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/JPT552100233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f7bcc720cdd7d3579bee75bdeb3a33a080820ec9dc238fdb99148aa584b2e8. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:43:23Z), 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/JPT552100737.
ゾンビランドサガ ゆめぎんがパラダイス フランシュシュ The Best Paradise
ゾンビランドサガ オリジナルサウンドトラックス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85159227c96a476179b666e749488a125aefa82134264a18eb8921d814402dc0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPT551800765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde31225ee3e3162e75b2075e97820729d90ee3490269c7a1672d273bc461c6fe. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/JPT551800768.
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