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 0x281c64cb537c5832301084cc484e44e3f5157117bb1fec9fffb6c270998ceca4. 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/2a002595-8b69-47e4-8ba4-045e90767635.json and https://artists.proofprofile.net/proofs/artist/2a002595-8b69-47e4-8ba4-045e90767635.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 0xeb68e4f79af1b3bd335c6ec2bfe4b968a0ee65e83460ab5b92258878fee01bf7. 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/JPV502200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e680f534fe95999d3ce56ef0769ac1e989660fb16b0517ffb059b41aa44b19a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPH491016005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bac7d27aa0ffa1de1de5ba0e8309f297284f0bcbee292e7fb7ded2adf49f85. 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/JPH491016007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1892f6f7d12f186952b137d6cdd2731cfcd55f06cc980dc26d7268b52f274667. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPH491016019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0026e5099565257eb80d4fa950892040820faf33febeb438f06202115d3d37. 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/JPH491316025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1892f6f7d12f186952b137d6cdd2731cfcd55f06cc980dc26d7268b52f274667. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPH491016019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0026e5099565257eb80d4fa950892040820faf33febeb438f06202115d3d37. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPH491316025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3401fb10f251bc24db2d271a5c8dfd40092ccad936adf428f113a4343bbf1951. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPH491416009.
Ichimoudajin REMIX (feat. NORIKIYO, SHINGO NISHINARI & KAN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2488d9297e840f4e82e24262a4b5515447a1a8887cda6799b998a75c56a777f4. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:23:54Z), 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/JPH491616000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9efa74c339761b57ce68e720d1edcc29e6d9c74963e8bffa0c9accec713846e. 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/JPH491617010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af9f2e9ae50c076572078352f1b1ed456d0ac714079378fcc854b2f42f18fe8. 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/JPH491617018.
ハードライム (REMIX) [feat. ラッパ我リヤ & ICE BAHN]
Zenjinmitou (Talking About Silence Remix)
カラオケ盤 -サイファー・フリースタイル練習用-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719eb3edf0fa6d8c56bb762a439cf33940d020439ef6a388d89f37dd963cbf58. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPH491619019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b243a5867d6789f2deb4222bf644f65a9a59a3157adc7e9dbbc1317bd312de7. 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/JPH491619015.
イカれてる イっちゃってる 異ノーマル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f403a29ca1ed066e66191381a9c85c350b672f111f5ca8df7af4f0e49775d8e. 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/JPH491619022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4217b027daafe43cfc794d7179035afe795e69b121d3eaf7486240f7f359b3. 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/JPH492016017.
Street Survivors -Blood, Sweat, Tears & Hip Hop-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aac4edcc0631a45adc5a12543a3d1f05c85deba4a72594598784166dc6eac5. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/JPH492016050.
Street Survivors (Fullmatic Screwed & Scissored Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f872b3bbac801cf33359e302b31c6a9680a079e4734b80a83266eb71798977a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPH492116095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd903f9aa72df4f7a5f3c05e24632229c7c6e6e01b36a65269f46c6bd0363aadc. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:23:04Z), 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/JPH492216008.
ファイトマネー (MCバトルビート 8小節×4本 Ver.)
揃い踏み (2022 Remastered) [MCバトルビート 8小節×4本 Ver.]
フリースタイルMCバトル (MCバトルビート 8小節×4本 Ver.)
ジャンガル (2022 Remastered) [MCバトルビート 8小節×4本 Ver.]
マイクリレー (MCバトルビート 8小節×4本 Ver.)
ラッパーズチャンプル (MCバトルビート 8小節×4本 Ver.)
マスターピース (MCバトルビート 8小節×4本 Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fb0ff6be54ac52a6a1603f1d50f2ca1b4b962cd0cc89bb0fa5470e9e2b1921. 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/JPH492016025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f49fceb4735784e3d3e54ebf916843ea663a42cfe5721bb8f5e60d18ddea5f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPH492416029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71237b0b38eafdaf91e35a6122c5a9f4f74e55488ed78b20404d7067cd08c955. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPH492416033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fe41c6d47995944b8c398ec8c5d3edc0551cbfb1b9679bd077018d465ad83. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPH492416034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb49dcc6134920aba059f62a9ff606085e07abaac6224b397076416cfab1b6f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPH492416041.
MY PLAYLIST MIX 2 ~Mixed by DJ KITADA KEN~
まだいけるか？ feat. peko, TEPPEI, コーラ, KBD, テークエム, KZ, ILL SWAG GAGA, KennyDoes, KOPERU & Cosaqu (from 梅田サイファー)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabad84dd42dfc4c7dc32f2f8a3191b75e61f4527e6664f4f25deb2b9aab1d9f2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/JPH492516025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a88da747269cdfc8c5cbc1adc5adf79c4919de340d9b5243cc2a3f103cdd9d9. 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/JPH492516026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e35c913661d2ba5d768d1da5e8cbb0c1ce0d97730446c4da5d6eb9beeba87cf. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:18:49Z), 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/JPH492516027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c66e090bdf9a9d97e8eecc61e07ef01c64caf7a7a48c195833631008ee0d39. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPH492516028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bce88669d99071bfbc63d4deb72e9dd59a3874c11a148d97a5cb20e86f6f803. 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/JPH492516029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9580cd4002d15c068d2eecd6563f61d4c1f491585e80b83bfe815a530cce4a7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPH492516031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313607e9df4e6a34b78ce32cb1ea87ff5689f617496812b4851eceae4ff60eeb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:10Z), 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/JPH492516037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ad17382804c4f2583584349e8353b4a4688dc7fa2f02056e2fbbcc2772a4dc. 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/JPH492516038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa795d5ed7135655e8ddfb75eda25d85b44a6e185d59418a59833de130d848524. 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/JPZ922003385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d2e17d8538e344fe88810b7ba0da4f5ce419ef6b52252c437f676769e2c70c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ921308117.