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 0x50b840a20109434bcf2ff7ef350fcbe5a562d3605ebbbbf47488a9d155a7d237. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/142d2684-34ab-4a61-9445-887c1ab145b1.json and https://artists.proofprofile.net/proofs/artist/142d2684-34ab-4a61-9445-887c1ab145b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ドキュメンタリードラマ「命のバトン」オリジナル・サウンドトラック
わたしが一番きれいだったとき： When I was young and so beautiful
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 0x2334d162875a46af89d8ec3b873e9542ac23b2e168f5bb202ad9de006c50c8f3. 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/JPU731800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234eade31484f6b0d1f8e2e28cf41e4c59b87f46b2fa7e7ef34b9c1eb472c50a. 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/JPS809917068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665f7e54156080ee1c20a9d08b5c3cc06500333ff4b0a06e1ad5fb8635dc3f87. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/JPS809917070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f55669ab339f14dc5ee7614399160e9ad077b2457cb4eaa2e89fa2cc425e70. 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/JPS809917071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f8b433ee887cdfb8180444ce6cfe323c109a2aeb054e881c56495462fd6ce. 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/JPS809917072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6545dd19721830db7ea9663497ce4d1343187e62cb8dac904589a3e1b96839. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPS809917069.
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 0x459cbf827ca23633982b3d9b20d1c63e9a6d8cdd43c8c74e8d0af8c21dd5c02f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPS809917073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0788d0a4192f17a2f884354527b003c1fca72ed76f2fd36710103095313437. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB351300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb769710bf0d8de52bbc6012a2d2df0712dffefbd963fda3f92d9375236d8e084. 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/JPB351300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc036c410e3584873e05381d7d2da241a7699aafc7b05f17101b771bfa9728d5e. 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/JPB351300567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc286ca91067ef0a42f4bcb3abbeb21350c83445a27bf50bf87637c9f7e3966e4. 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/JPB351300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ded6947b109040ec2d3bb6c211d0f1d7c6cdc3d648a1be5e7cc9d9257919b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPB351300569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1670a0d02750377a459dad798bcc7f129a1739e4c5b4879a560b569e1065d43f. 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/JPB351300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5756620cc13799e85298bcceb2177aa7ebfc6fcafd65606ea72f8026b1bf66. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/JPB351300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dde3648d6ba29a2eeb4ef257ff9b279f9388f78a05927a258b74421b00ba05. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/JPB351300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12391c9f662076589e2d455b7701e5f196dce919e5cbf2fbd2a6a533685ae9fe. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPB351300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f5f66c6f2ee93c124ff1d02ac72b106af7ecfbb9ba0b313f9e5a745b38b4c7. 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/TCJPR2240381.
A Spring Monkey Song (feat. 崎山蒼志, SMTK & 小田朋美)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99487a306923d4145f35cd40913b5a7a730c04546a208f752da3f6cd1491cbe. 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/JPWP02100708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5efb478b7c757712abb90ae8565a0546dffed79a08720bed8fab23cae68d28. 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/JPWP02100710.
映画「ザ・ファブル」&「ザ・ファブル 殺さない殺し屋」サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe381d00b96eabac47d52d8a5473a06a540c7f778b14b7bc804a91e8fc7177b4e. 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/JPZ922104966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fb6888c3a2c95ed6183d5bc9a6ebb3a1ff49fbe9b81026cc472aa6910a5145. 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/JPZ922104975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c2170488ce8ddf62918251851fe1721643a288006a1464412103a917fc7955. 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/JPZ922104980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3afff31b36f6b5aaa3613121a5df31a0899c12dfaeac51af8d1e576a9927b66. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPZ922104983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1d642252a3afcd880646052a76c2510c0a0fe62ba5dad4caa75b14422105a. 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/JPZ922104984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046440a7dc975e4b58903fc90470185a36debc8474632604cd841242807ac326. 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/JPZ922105002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fac67f8f920ba96343d15ebc4079c1680c41df2477db17134dea1c27f727db1. 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/JPWP02100731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c440962a4f7e5d98131d4378f7c94f8ba5c6a44028738cd11c1816060b99fc8. 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/JPWP02100732.
「サマーフィルムにのって」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85727d799112348217f66285223837e5273ea3e8f2e8b3a206073b8e3619953. 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/JPJ902200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ffaf82b18cb9fd287951af7365468aa6325dd3a1613d985554d282693725d9. 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/JPM902200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5a2e11336beeabdd23e63029891356505770f59c744218b6b482c994476d2e. 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/JPPO02100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774d47da816fe308680e711ec029998e15f4aff355ad359e6abcaa554276a65c. 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/JPPO02100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80a6fca0237d010d52527f084b592082daaedb39547770c92421e345e6e1180. 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/JPE871903404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5c748580703f0a39b9c90d574328210079a8221611451caa6b536b5357e38. 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/JPE871903405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2050ca3c433d7041d77fcc200382b8b9e2fbe9031d9c3f42829b8b85219824e7. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPE871903403.
Virtual Detective Tabito Higurashi Original Soundtrack (Shikaku Tantei Higurashi Tabito Original Soundtrack)