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 0xdb23615d3cc2143e8e11e27dc49a51ee93252679448f036b5b0af8a7ed971443. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/179beb3c-d02a-4e24-9165-46d104d21199.json and https://artists.proofprofile.net/proofs/artist/179beb3c-d02a-4e24-9165-46d104d21199.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
『映画プリキュアオールスターズF』テーマソングシングル【通常盤】
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 0x9f5d428d33169686ef235bca9c21eec637411ff063ae14350d6e0af6ea605e76. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD602301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bed356e9771df85e096e8f181b57e7bbcd804617ff2a8f1b3349d45e670715. 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/JPD602301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd590e51430ec1cf18aea8037a41daa5116228e2a97eb44cd4e0f5d61d167ce10. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPD602301522.
『映画プリキュアオールスターズF』オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e68935b657fcd00f1f33e7472499fcab99d6fd35f223b2a45c51205871d30b. 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/JPD602301615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e978b1c7e9d309b5dfaa442755823c751fbc32c7b9381dc65a720995e052320. 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/JPD602301616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3607d9493ec2ab1c977bfc65193a45103a1c55896105b61bce2f45e374fcd3e0. 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/JPD602301617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01dc06c098c07438f63ddb4fbf5dac5cbf47f6c2be1376ad0d0439a2b01c278. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPD602301392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8291b6b104db82b3738f8215787fcd37057355f61b7d0cc614b4c798c0ba41d1. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/JPD602301618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bfe8956cf70e4c2fef6aeb3ebe941205480e8ed4dc7ec9dd873bd18ff3e17a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPD601600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2d7fd1f064e4ca6defe5161c09c06b3b9c728f832e2369f228be640ccd55f6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPD601500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b88b022d859dbab7ec953b8caa70d890f12522a7d1195ea852ce20676a760a. 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/JPD602301619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca1ab55aa3969d90d85a1041098f4821cf0571c1764e4af339f6e8a2e2e6cfa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPD602100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403429b13e3451c1796e99861909dd3e53fab92ae5cfa5a0b0de0866983cd878. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPD602301620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cca66008fcb4bfb71ea2ccbae8dd7cb18875966c64459690128d3faf35a8d8. 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/JPD602301621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb28f6fa77417e151c971c6ed109590298082c7fd8dd6a6251d57a79f121686. 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/JPD602301622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882a878605b8b01e6bcf0b228644cb9b974f1da1f14e27049b7eaa10e80b0794. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPD602301623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c15463d0df412efcc402d911066c274112a03fec9bd93f9ec7f86492236339. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPD602200446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e1aa558e641cd04ca8a1d7a518e24df8819a534f872aeae6f5f2a931869a72. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPD602301405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c04b99ea2bad72dc5c47025c03976e0f8da9c500cc30165aaa1374d6d0e7f3. 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/JPD601800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b88b5c6a125dd47de62ca7fcdb1c1c58cd32e212770966b340fe70914994c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPD602301625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba2af6af11283175169e76be155fba4473b75d74a048dcaa4e31d946ccceedd. 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/JPD602000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7b8ee70b415054df9b3d979cb97593a2f5bd70992f2910fb132a93c11799e. 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/JPD602301627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd17890b7f33976b288bce279a0ace5f5991448f1d57273dfb2648cf8301377. 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/JPD602301629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc805bef52737e573b91f2506e79450ebc87d7f29b721d0a6a0612664403d94e3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPD602301630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a5e549977e122cfbbdf2fda658f85224aa181d9bb5be79d9c39571761d8ee. 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/JPD602301631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8cde736957f8e2cd01544bbb401900208acf7354818ab037e78dd4d7fb529f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPD602301632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7cd02bf440695b6600db4bbcc9615cbef202e9503ef7585f2c886793128596. 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/JPD602301634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286fdbb366941c57777b3d1ba30a7271971fe7984a521bc0aeab81afb4c75dbf. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JPD602301635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bed356e9771df85e096e8f181b57e7bbcd804617ff2a8f1b3349d45e670715. 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/JPD602301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3b1725d44f800e7376d6dc96d665b2767f360284d7740a7f516eb5f57bc96. 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/JPD602301636.