were a Japanese electronic music duo consisting of guitarist and vocalist Michiyuki Kawashima and bassist and programmer Masayuki Nakano. They were signed to Sony Music Entertainment Japan, with whom
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 0xc484f56b07972f6a5602fe3cbecdcdd13d33bd769761f8f7458900b1053bc644. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81ef7152-bfe5-4084-a677-099e8bcaf101.json and https://artists.proofprofile.net/proofs/artist/81ef7152-bfe5-4084-a677-099e8bcaf101.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 0xe6598e4d5161e45c5feb7b3c399216e692c01338d49864dfd78a8b0e09369e1d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:23:36Z), 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/JPSR09809081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6598e4d5161e45c5feb7b3c399216e692c01338d49864dfd78a8b0e09369e1d. 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/JPSR09809081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee471a7b23a19ce6fa7109b38ca28902de0de25fba8f361441c7423fa1e9dc40. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPSR00000641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8d4172c1df912390a994b8b4eaa2561995f95e1a35e9a3ec007a8496a6069. 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/JPSR00500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5928979489d3c6844b7b14ede12304279356f80f6f40380f3609965f4b37a6ee. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:43Z), 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/JPSR00600842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d49c59cc3238a1f1eae353e179f3e90c6c7582d7b8b19c5da93a31ed7443093. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:36:22Z), 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/JPSR00600843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda7a87ca871563eb94fd26ab087a583e5fce18ac12853d0a7b4aec6003ccb9b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/JPSR00600847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a231b0f2ce08df4cdbe695f5b974fd08c2b74c0995feefc309cdc7912835cde. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/JPSR00600849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b0a86c632c74019a75e742272bf841b3bd42a072dc8135a58059d263c25151. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:46:07Z), 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/JPSR00600852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd65d09911cfbbb22cca33752c53738065325a662aacda6ce48ef5b05d615b2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPSR00703301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925204ec9ebb3b7fa2d4ecd29f7fb1eca94f7f993d5f31f4966190253c1dbdff. 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/JPSR00703302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0aaddd60bd03ff985b7e18adc62ad123c10713de9e50d8e9f668e83184be08. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPSR00703306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd1201c653fba658fb831c69f8fdbe19362f82e5fa4560f5672721cf156090d. 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/JPSR00703308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7bcad139b382563dedaf57108f52013f3df2db8ed2041722176812e75c02d5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPSR00901401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a817957fff2b143087c5028214ede192ed9fea841c3f97a8a277e83a9d44976. 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/JPSR01204323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62efd164f686652ee966ea023ac01aaebd389b69ee5d6893a4fbe33bf1cbc15. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/JPSR01204143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33157f04d6029b7c1bc7d89eba0e6b8e66ad264aa32228abf24f55f983f12b98. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:09:23Z), 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/JPSR01204081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabbc3e8c5c8ccfbc6bfce3471962c343f2333aaf123a645f6ea91135e4408eb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPSR01204066.
Experienced II (Embrace Tour 2013 Budokan)
EXPERIENCED II －EMBRACE TOUR 2013 武道館－ （Complete Edition）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bd9c874a322fb4b85fe42021ab27bc0ca48961c54c7f69e9d6aff6d4897e27. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:19:57Z), 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/JPSR01301328.
BACK ON MY FEET －EMBRACE TOUR 2013－(Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b7bd32e2ab7910913ede2258fa0d46740021fa5396d755db38e6feab1dc4e2. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPSR01301329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ef9bbfb0b978e999f16d2d6a688d3c44294628eeca5d0f783e6c4418124b80. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/JPSR01301335.
BOOM BOOM SATELLITES REMIX FESTIVAL 2013－Winners－
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4306188bd947254ee7e6f65097c6974b59ba6c6fadc1c46368f17e3e8d7f45. 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/JPU901402587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0176c112532846eb91c2985c2a5cb3e6c240c8dc26a6d57052fb9f869d6bd1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPU901700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a0c673d273c7ee8820a2aafa4bca4061f38afda14c4873d4de3c10dfec9fa1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPU901700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8269187ff068f9bde16bdad6254e862cbecf8ef9b0a25359a7af5d4beceeecb1. 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/JPU901700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3bc38e16d632b29fb44d6685c16d985b6fa7910f7406011886002811fbf37b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPU901700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61384bd224a86001da0d8393e83ee20d42eeda1417968551c8815d617e984883. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/JPU901700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de74ec8fada790207ef46c0b1039504dd8087bf768f65f43587fb796f9fb5e3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPU901700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f5ad855fcf568803f66344b4ba2dc5053f0c99444d204eefe13e28d5b35274. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:46Z), 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/JPU901700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57f6856f7a0cd66f29ae86c1b91fb2e1babd3fa74b061caf82b2c54143b789c. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/JPU901700190.