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 0x067ded280a3d4f2a238ebdb180cdf6eaac7b8be678ab8217cabea76d425195a8. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0013b0f-de38-45ac-a994-c1b8c9fa7fb2.json and https://artists.proofprofile.net/proofs/artist/d0013b0f-de38-45ac-a994-c1b8c9fa7fb2.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 0xad1685950df4bb9b33603d50bfb1f45ee5c888e052b6a837b79adaac37013c5b. 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/JPS801960207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23250e05180f102048cd644bc8daac6f286fa7ee2d358d470370213f729ecb7. 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/JPS801960208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275da08a97efcea5bd0f9d8956f3c71811205c1037d6f9807408abb4bd3361cd. 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/JPS801960210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cc71fa7403410dfaca7c352a39a04f93257f1ea605a83b451c4210f76fac9b. 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/JPS801960205.
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 0x580a7c36028f94cbe0f6cbf046582b73e12f1889ecefa1042f47b710220f1ba5. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPS801960206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec494618679054d93f2a9166f79e9294b4800ca5aa00e96fddc1e398c763117. 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/JPS801960209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea07dfb063c88a04446308b38d58bc9176e0baa08ad00e7ac18001fe25c1396. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPS801960211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca959bfcca2ce78d9af52ee8651fc90d740d38e6267c2ee9b468dfecb33fadc. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPS801960212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea326c9fa61fc3a6ddd4ae098c25627d7be238d3497eb65f1be5bed0773b3e4. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPS801960213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d749c4333bb9bb796d11577e046114065d2e37ae78e986574aa771b05dc1ab. 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/JPS801960214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc45ac20d130189468043006f416ae408389ca376db5aadbeefd73fa6b2853e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPS801960215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd40740733acc5b0f0802a1859516b4f560083516c4f7bd47ebff3439bcc3387. 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/JPPC01901130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bc308e3273ed72a908d39b92357944e31b3be9c0b70f830fd46d5bec9e979e. 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/JPPC01901132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700169a1a548d0f848a461fa53c55f4610a28821d87c1d1eb5cab044d0a563c. Chain 2 (Bitcoin): anchored in block 957287 (2026-07-09T09:48:29Z), 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/JPPC01901140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce353a52c791b440a8c6bd22df3aaf5ffaf0a239ecbbbddc80380c51338b99c4. 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/JPPC01901137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386da022e6a84015a17e77d99850dc4823b3985275bd790f18a8f5cc3ca684a1. 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/JPPC01901138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a14a42567869fbaa98d0c9868de5b8da94f0e0f20dbff5e33d3ecb6e3daf816. 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/JPPC01901139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76c81e34deddc1f0c933fd523875df265daed261afdf0e8d8a668daccb5dabe. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/JPPC01901129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033fb0179abcb2c7fce6a39555bc5023e76f71b85d190a3d1d3e3c1edd0be2ce. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPPC01901131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e82a17f688953bfd1a20d0c8cd88a88c90219cac9029bd4e00685b7bbc11f9. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPPC01901135.
Mo Jitto Shite Irarenai ! Can't Sit Still Anymore !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042c451cf70b20387764ebd423898763abf895568241780882f6c4af99f55906. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPPC01901136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0321e9c8d9aba486aeaa8b18504e107f918c881c660a51137484674987ba6b. 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/JPL360900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255da3de6e1fe2edb8d07a6d84de151dfb2e218be6c1692035a5a76e17b7108b. 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/JPL360900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0266cd267fe58cb7d6b10137dc368ba22886c7b21e796c2174a89c34f1a9ea4. 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/JPL360900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b58a109b32d36a81006a13f2524ce61c495bfe757aa36cabd067862d6f9b8f7. 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/JPL360900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650973dbb072300a14d532c2757cf1f6459f9cbfc7bf660b688101f012b2e872. 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/JPL360900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014fd7cca5d22057fbe3bb2b48bbcf5771c2363702f4b22e5caf324285dd39e2. 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/JPL360900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ba6b269f349b50d15c7c04d082536d29349fd076a27846ce355816b5b2fcdb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPL360900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf393b43eb322635bccb02d98c5f47bd4ec924514e8346c2163ce55dc724bd7b1. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/JPL360900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae06140f3f04f7a03fd2e7fb147e66ef12eaf9871997daf762abfa1547afeafe. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPL360900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff51f7644792ca9ba051b174d5ce8383e4e01d2512a158e19905a4f387b4e993. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/JPL360900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a63e65ae9ec6b7d884a6a9c7772369f9fb893975ab5d04114ac2398ff69993d. 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/JPE400900540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2096247129ab08c4af2584b25b7431d191b630751eb0404d51fabdebab2c2c6e. 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/JPE400900542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978e23b8a25d2472488c8928e0252626a81da95d12311b2adb3eff00bd0a004a. 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/JP92N2386834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11facba199619617d3ba5c8553ac80dc88c547707ede0c08d2c8a93708e5141b. 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/JP92N2386833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235efd861a5a4d39d16cd69c53240ea985dbefdeaa95e02c7d5bdfb999cc1458. 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/JPB602194583.
Bamboo Moon (As Featured in "La Casa de Papel [Money Heist]")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0716dd62d56d1ed843704b54ef5acb97449f7a67c4804f1ffa5c5f88a74d8a57. 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/QMREU1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b20adab722af969e916fcd9b31f5ebd7d8bbe1e595574ce00b35ebe41b7ace. 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/USA2P2116152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab91f6427d8986a6d7cf3888e2e14f9a7baae5e688a0d9f490c62b54f03262a. 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/QMREU2100944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a920bb123caa0ff3a3a2ba6e64b872e3371240bd67e0f870325e4f019105197. 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/USA2P2209295.