thumb|A low precipitation supercell in rural Northeast Colorado. A supercell is a thunderstorm characterized by the presence of a mesocyclone, a deep, persistently rotating updraft. Due to this, these
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 0xeec506d2fef2fba4c0ac91ece00aa4a92c2695bb7c9e999b67cc5aded64318cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9618995-829f-406d-aad4-e74b90060157.json and https://artists.proofprofile.net/proofs/artist/f9618995-829f-406d-aad4-e74b90060157.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 0xd168b8148a86d0a771df5091a61acb73bc1942650d6d0edfcb734e7179fa478e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPSR00902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026de9309c72072c16445f3f2f518a9243bd9819662ec3879f45429c0a3871f. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:03Z), 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/JPSR00902103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1bd55b421331a48a4e0ae71b65595fe03c2b65fbeae359c43f0546e9d35566. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPSR80901341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54e60b923d61436f4787e4302c53cb32dee266323bd3557f533806047a1524. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:16:58Z), 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/JPSR00904166.
うたかた花火／星が瞬くこんな夜に
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec4936d241365cb952f7ffbda600402143951f48a3992dc80420255c91e106a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPSR01002788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f789ef762f1027598715a2865ee77f3a99c9b2e28da8b3098fab7f71daa863e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPSR01002789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c6f5b93216d2702c39c055660f74bed88815b0a07b4f60c30c31f3db47f244. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:02:18Z), 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/JPSR81102521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c4ace9150bf433d9c11967daa95177c861de7f191b38946c2f31d9385f62e2. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/JPSR01103083.
「僕らのあしあと」ピアノVer.(アニメサイズVer.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5563243698c39d33efc0375ee5d033ed89427ba6c98457c51afd24c154a6a2a6. 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/JPSR01200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd6b9cb7e7441d93a5fa8dd46075674130da07705a04d3c968f1477229a4a9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPSR01103621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e51261d227f0bbef54112b391bb5a42ce17fd07c714090bdf58533758f6e49. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:47:26Z), 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/JPSR01103701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069139245f7ed3e86ed62f0cc42fb77ba78f02173473471b7f2af960977f3e49. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPSR01201101.
劇場版アニメ映画「ねらわれた学園」特報用BGM by supercell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512277307755b5b3ba8f3b771cdd45cc150e088682fc274ec3038c65b6af3add. 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/JPSR01203941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7946c467f84069faaf6020d660949db50e14fbd4a384ce22c59b0448980281b0. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/JPSR01203942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f91ace214010d482815572af7c6b40bf1afad288046da1923f2471f7c29eb05. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPSR01300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9722884ab5fca3cf9c46ee04bda2fcfbbad3c8e1310230a0212d30759af16b60. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPSR01204283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd786dad41df98b73b861b9efa45086ae5b4434534ba4ad0931ece6e47e336e56. 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/JPSR01300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa45398c4a4b52917faca25ae3dfcd131e7a76aada21801a456546d4f430d915. 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/JPSR01300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5395e570c01dd8e08a12378acc7d17be1244ca208c57d60d4cb322e9094d50. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/JPSR01300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a26545d5fee2fdfe340497f475d1f861e403b3264518d4a32669913ffebf2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPSR01300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056f7935647eee3a1165a2f03451d0c614fad1245b9858334f7b04ed82d75719. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPSR01300724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a06845cc994c2cfcb36b62638652ea9d427416b6c6de32502e233a3e2554c4. 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/JPSR01301357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8130136455ca1cad48cface768241b3299b62241e1483c2cf19e0bac74cc5ae. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPSR01301346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833fe6a28a9c323828e2b7980b6cbd94a9ff24e2c2af1516be08129b79fb393f. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/JPSR01301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc1fe4ed63fe7ad35fa7417231f5a93e7230fc57c42cac1b171f0836db265ae. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPSR01301361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa45398c4a4b52917faca25ae3dfcd131e7a76aada21801a456546d4f430d915. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPSR01300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6531426b618c578a10d87c901f0ca0372260ab0fd6ab6d0072661c756bb6fa99. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPSR01301363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dff606e6d2f354a1e52c63f92e57b6da849c646b1972f4623347060def5ead. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPSR01301364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd39ae844254f207cf60ffa5744c2f4ae5db46f2bc15f06fd47690ac2e14143f. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:28:17Z), 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/JPSR01301365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7e35edaa755022fbb841dbddfe4de037f52479f8bde53ab10974f7cb10d0c. 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/JPSR01301367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2751dd024a00f35f75d0ed01062a779cc499a0b62ad673bd16906f12bfb6950f. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/JPU901901944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e88ef26dc6603c88e3af2da0664c66c1481c3576892d07f528d9f57f7c2e6. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPU901902065.
Utamonogatari Special Edition (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a9eeab13c6e62cd7e312bda3b5dc88d83f7d9304ee8d73b5fd44cefbc2eb49. 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/JPSR00901782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e886cb2d3277d4220a12785be2f4f7e6503f8c033853bbb13c85a0b4afe4cb1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JP92Q2400755.