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 0xfc44ec4dd1bd328d0db413370f6decd2ff72f798f2c558976b895fa9b536d00d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2751e65-eb4d-4f07-bfeb-f9c525a357c4.json and https://artists.proofprofile.net/proofs/artist/a2751e65-eb4d-4f07-bfeb-f9c525a357c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
From Loud 2 Low Too (Download Ver. Vol.2)
The Rub Rabbits!/Kimishine & Akadoko LIVE+
Samba de Amigo Original Songs Collection 〜Party! Party! Party!〜 (オリジナル・ゲーム・サウンドトラック)
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 0x6c66d95227c8fa2c80bf529f1c87bc388a7ba5203a8af3d324f7ee416ee62a04. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/JPX302363460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fff9485640c8ecf3cdf7c1f535a57aad217cf31fbd78b89b5e99ae4916f4d6e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPX302363470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7665e991bf93a426e72aeea1cd31871b2ea645b0b5f2c1c9600be3db8cf3163. 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/JPX302363480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49263770a944bf7b0623105eabf92a95e763739ff432b05b76053db3db725900. 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/JPX302363490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a4da6f045f8f77d9dc6678d753714e43c3e54f997c301d7626996880bab783. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPX302363540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bc96dcad24726150bc9728bab94d0c08f20a27e0256724f9c7e96f4be2814e. 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/JPX302363570.
Minigame:VAMOS A CARNAVAL - Electric Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d61b3fed06c98ce3c65928196884bc79e76d32e5e3bb634ecc29e1ced1f0457. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPX302363580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c98f163f05785d2127ed10f35ad4a893cb13e691ef781ec15b32af31d89be1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPX302363590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbbb3fffeb0bb96dcf2a3358c7f7c9124e80f9dcfefebee6f1561ee30898fd3. 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/JPX302363620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b6388ca5c4f3c73cff781a9e0aa692760431c7bc54eb43acfa992ae18e7a82. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPX302363650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9b006c622d5a6369a2409190e3b954512f9cbac84ac613fa267d290e413e86. 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/JPX302363670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034382b3797ebd965f3d058101b30a7b01e889285b1176799755b3d63a9846b0. 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/JPX302363720.
404 GAME RE:SET -エラーゲームリセット- サウンドトラック Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59716e0e2d963a3f9d330a74a8fa72003efbc522b3d505a6825784bba39a8b9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/JPX302362840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355d8c12b3b5087d7657340250ce70c1dd86ef22dd9366b87b674854416b0ee4. 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/JPX302362850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa08784a5113006f1c4187a9ca06cc26f3e05fec9469a8baf68c2a45b5abf45a. 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/JPX302362870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d06ae27328840819db6d53c203bb40abfe4db740a95706eb30d1bbda21bf7a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPX302363040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e2adb93c4fa8614b56f66532d06552ea3c5ef5a82a76fcc606ef47faf55a34. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPX302363050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33269794260d4908600f7e5901b2dbf5c306349b8bfac4a96cd72ec1c31ebef2. 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/JPX302363070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463582a1fab20bc5e4d938173b515ccd9bc080e0774e834cdd91ad5a47f98580. 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/JPX302363090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895e9263c3286bb99af6c08d64c622b3ba5ac7eab1f1cb4c57144a6cf27b95f3. 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/JPX302363100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a81af8c77551b8a8d2868efe553933e6905ce1e7240db9732b91a97b65c60. 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/JPX302363110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6d949a1edc78a3e1654ea67e75419e5b9572d7040bfca26c1047ac022a48b9. 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/JPX302363140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f3445496e67105857e158ed02deee877af320aead335c6da76f184b388494a. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/JPX302363250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae9fe10e77e9b7f93e53f4e5ddc7b5d2daf65a5b2826142c823777a11a138bd. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPX302363270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18064b00f4e6f7f98d36831b0d7d5aceae92956ed8ac3cb3c69cf9da074bf31. 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/JPX302363280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24fc9a991333001e2d934926869cc7b45cd4f7ea58f69438609e55fab2c429d. 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/JPX302363290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ace3e6a0fe3b016137cd1fe45d4408a22584f426214e93c467bfe8f4b7bcc. 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/JPX302363160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648cdcac261f6500b0ae4cec4cda45a2a503bfe6a5f99400d3569a1b8898dbd6. 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/JPX302363170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd693d03b0ac70a1bf5c04038e0344a5ddcb1cbe0b7d6753be694a4ddee0d51. 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/JPX302363200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc7a29cf7b04582fdf5d58ac9ac1ea4ab32756913c1d00eaf1b808131c5c0e8. 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/JPX302363210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9f3ed3945d6a82a886504a73b683ca7c95faa5e55a1e0e98bf81f606cd868c. 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/JPX302363220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67735016f0e08192f04a9c2558ebec82b5a574a6ad19c1a4e6909bcab4fed11. 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/JPX302363230.
maimai SEGA Sounds (Vol.4 -maimai chan ga eranjyattayo～ Pack-)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c66443e0c506921c5cc99b746a348b1d8f58ac8e668551415fe64e2c507b32. 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/JPR501306865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c134c0463a6f162ff8382a96447503d8c178895e905e6279e675dd452c50f4a. 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/JPR501306866.
maimai SEGA Sounds (Vol.1 -Ukiuki Wakuwaku pack-)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7fb7b52523e8e08e1edd2c3b3d5820f8d1daf36806dfb31e95885de89b051. 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/JPR501205722.