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 0x99913e9b1cd0b1e4d0b87d30276e39a8b5fbd8f74ff074a8c375220281b4ef1a. 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/c8fe2aa2-8129-41f7-9d28-b86d9beccd7f.json and https://artists.proofprofile.net/proofs/artist/c8fe2aa2-8129-41f7-9d28-b86d9beccd7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
芸能生活40周年企画 シングルパーフェクトコレクション（4枚組）
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 0x09cc89b5a42373973e052c6a0d096d4d5555b9f956d44035890bbec47dd5aef6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPTK00202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde662567268abca736d7ed63a8e53320c001ca4528d41b3b4821d39081b5c446. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPTK00300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c6486d4ea108f3e538f97e28968841128f585b77c2327b59ca562fe5faa813. 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/JPTK09700830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42784fadee8af590cdce3651c46790fe1198162255f8d879f436577efe9653e7. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:01:20Z), 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/JPTK08900550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd677ada11e29142764be96ab6fae8ccc7e616e459ea264097f37c12d826b1cd3. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:44:43Z), 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/JPTK00401590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46423d5e64e5ffd2be0a84de12aa3c0af789f77ba0435441d4f9c12e41b7fd52. 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/JPTK09800520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca9e2f010c58c798630d473e983462ea85f527e6313602dddd17213fef3cdd0. 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/JPTK09801090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf758efc1598b3eeb4d6a50abdaa78390853e241513370092f2a804313d1b3828. 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/JPTK00708180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b0de5859d04e02215d086017efbd851885050c2c0c6ed9b323af9fbb883dd0. 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/JPTK09200740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e22fe0c4b60aeecb5664c92c20958950633926144fce9e94094a714cc4a50f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPTK09300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea7542f1d4b02a4d6a87ec5f7bd1450e2bfd76c62bc71aa92bb2ca97a4ca094. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPTK09400970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6c6e2c9d56e555875e0a177dd3951aeb81b429ddfe5d22a92510521e6962c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/JPTK00100570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09a3e3650fc3d9cb2b9098729fc7a0a42838c8ce81d23c4223fc9df1567b34b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPTK09400980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef63adbcda5a848ea3be52271f1cb68d8e39e86cc24ee0b1ab28b5e1f57f316. 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/JPTK01102100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546b6f8ce216c0a4fe38998255985707983e534748f1a1cbacba35db80ad3f7a. 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/JPTK00201340.
35周年記念 すべての人にありがとう
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec88eb4b0eea782f2128f50968e5fa7b04a5d879442ec6872764d959d1c3111. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/JPTK08501040.
Dream(ドリーム)(新日本ハウスCMソングより)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cc89b5a42373973e052c6a0d096d4d5555b9f956d44035890bbec47dd5aef6. 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/JPTK00202210.
風に吹かれて・・・(ワークマンCMソングより)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a42fe510b2ae8994fdf9c3edf5fd361611362cfc612b04fdb1e836fd30ffdc. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPTK00300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d5bc9681201e5edba2a13b701b9bad8889398d323b0c27032f7bfc79afa8b4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:20:35Z), 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/JPTK09000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1edd2350ea95ef95de5a6c8fd20296f0d3654f108977d489ec8e95eeb2a971. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:11:52Z), 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/JPTK01203100.
芸能生活40周年企画 シングルパーフェクトコレクション2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856ce7d6d77615ce0c99056be323fd57cb743ce77569d08b433570b17e566722. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/JPTK09500010.
芸能生活40周年企画 シングルパーフェクトコレクション1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bf5527b2261b3fba3ec55c98c464777f41ff8565b74ca67267150f0f7c7423. 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/JPTK08700020.
芸能生活40周年企画 シングルパーフェクトコレクション3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79c19a1c4d20c03be9373ba3703cb3d7aadac1a23cc89b225987bbd82575710. 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/JPTK01419110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bb200e85d4353fbd63a498b85505eb30cf5ba94dedc08e34d82e72e2afd343. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:18:24Z), 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/JPTK01604220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad2946c60c2b9b1894adadd4d4fa40937ba50c69d9f5979ab761acc02167546. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:31Z), 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/JPTK01604270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8119118f8306c1b7d8aeee937e8262745dae6fe361966798a9b17b29e502c. 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/JPTK01604280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a090fe019415520aaa90115b33a673e02d0c6c49615b4b9c5ad6d74d59d7a3c. 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/JPTK01604300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c652f012ee9aa34f9d717d12adf13b2dfd2a39c527b060d442f6e9a204702f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:51:23Z), 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/JPTK01604360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d5c4a7618f80b6d0d55981310d803f7c9fbfb67cc15a7fafc81d2250596bf9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:34:28Z), 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/JPTK01604240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c1e9a72cab3dcd8a47363f0bd1e6316227092ed8b8078d9b4a3b2657bb2798. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPTK01604330.
感謝を込めて～あの人が歌ってくれた詩‐吉幾三セルフカバー集‐
あの頃の青春を詩う vol.4 グループサウンズ編
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f00a630d67e28183744ec26d4b2bc8df4d578464bc07fdbcc8ef4f494d149d5. 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/JPTK01901660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77583f9e9f45335877fe52fd08710a1cbec2b21171d4505124522a59d1a58020. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/JPTK01902940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90a6743a05c2f069e33502aa8cb26a1f829df1c3c758ecc98994fe8d6c23a96. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPTK01908590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd967024ac3cb47a236eb809d736c097125dacf15687c81db462aa55bfdba533e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:41:07Z), 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/JPTK02018840.
吉幾三のおもちゃ箱～令和エディション～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7e5a6c9bced5bba99759096ae36c6c7dccd49ddea7a27b11a03130670c0a89. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPTK01211420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c390b5235ac713fb939d7f708bbb42a741a1179030dee291a18bad19b2b239f. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPTK08400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe9bede796b3e610647b8e3c4f2ae75d159f81790b1e18874abbd45d9bb220. 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/JPTK08700600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3086a6e6e1ade2700b6a4b1bcda932cfb4e381448c9cf29f4da61b6da2e32d9d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:58Z), 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/JPTK09000630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7ce28e1d64529d967fb8f264547be69ffaf41f01e53cc63083b0cdc6476a52. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/JPTK01800800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd967024ac3cb47a236eb809d736c097125dacf15687c81db462aa55bfdba533e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPTK02018840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac31ebb1c2cbe738f72fa7263994be6e1ae096c0d7217ce154390e81c474ae7. 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/JPTK08800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1040f4d6a8496bfb288e0c4ab134962af2de1ff70836bce4281e0d5cb75befd. 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/JPTK08500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c390b5235ac713fb939d7f708bbb42a741a1179030dee291a18bad19b2b239f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPTK08400220.
50周年記念アルバムⅢ～あなたの町へ吉と～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a92f080bacfa0d0cdfeea07a79cf83a7ade94ab37549d9977157703cb06e03. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:04Z), 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/JPTK02207130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cba9b8fa94dda14be59db5b43be963b2a5a350f09fac1e35861650d0dfb11ce. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPTK02207160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4366f873b091d6e03cfe9324e00f0497b054210a6c19b8c2adeda4acc051cb3. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPTK02207180.
奄美で待って・・・<50周年記念アルバムVer.>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e194142a5b27369ec19e26e229036a036f5b44725ca70d964bd8a010b4a237. 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/JPTK02207190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3023f95b8ba302271332a42101612c57017b1713fe81022c26643dcaa8ff4f7b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:57:48Z), 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/JPTK02207200.
涙・・・止めて<50周年記念アルバムVer.>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26d084054d3197aebf1cfa4d2e431616fc0770c13920068f7c437a5ac4149c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPTK02207220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58d80ed5cc3a97e3c692b62fc62eef53bc1b1c3406272fc40cba1aaaa0f663f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:39:12Z), 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/JPTK02402980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cff7be6722bc57f74d6d0dcb5fefdda121520b001b010e8d7d5bc45ce6e3d8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPTK02406680.
エレジー～哀酒歌～-ニューバージョン-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82a100985526961d39bc83aa18e8e5d857f5022a9581619dc4eac06a5d727b1. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/JPTK02503610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf737c0a5cb185da7aa86fb52266edc1b46f6e22d307835644d956a5d602cfe92. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPTK02503600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f01995c60322e9934ca1e1564cb1e463301fc52e872c565e9b1f39e07cf53d9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPTK00003040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7aa6a22ed91208e3e3f86c25b85379f0ad6f0638dd9222ba0af108f4f0abf9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPTE02402390.
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