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 0xcffece8873eaf1f4cd36dadc8e925621b55f89687dd836fc3a824dc64414fb0c. 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/1822d282-8312-436f-8437-4addba1b54ff.json and https://artists.proofprofile.net/proofs/artist/1822d282-8312-436f-8437-4addba1b54ff.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 0xb839fea4783752a202cc3f13c25d5c041164fea770ab2007dd1e41bb02ddf055. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/JPCO01821640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352c016ec398ca26fb6e204fc130628226b1098d773e786517acfa7cfeaaec78. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPCO01918200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d1cda50af86c1ea572b7566b88b55388c45c59d8d3b4a4d599f5afe8056d09. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:59:19Z), 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/JPCO01918170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fcf5cf69bfdedadc54a13d563d38da698a7cecfd2e0d3388530614e3634eaa. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:11:20Z), 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/JPCO02002790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4695fca096d43f0ed54c1af322ed665f3c6d9b352b036c742224eba2592abbd9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPCO02025270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7910d84be21ecc9aa801043b1c5c52ce33f6b87050bc5010cedf6c6560d3a1. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:31:57Z), 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/JPCO02002800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dcf9db7e942b80b2ba67da3b07f1730b783b1274b17f661c1f9f8b5e51ccd2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPCO02025760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae608e2c55e186dc313a5801d8927f5ef373e7bfb37cd42e3ae159293d0c4e5b. 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/JPCO02025770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854756569f0b9b3ca85d0104672d3941a016d8cb45d1f7973fe720510b711fd2. 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/JPCO02025780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abbcc90ec990c9fd23f297cbb56d44721e75817a0f8c45c0217ecfff47682ff. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPCO02025790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a815a269563095eaa4ffc2076883f9c1faafaeada88a03cc10b98807d18f05. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPCO02128990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5093237768a39464b004a9c83db2d32b95fcdb6c4afbe110d925cedfa989702. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPCO02129000.
Wasuretakunai One-Man Tour: Life Goes On (Live at Spotify O-East, Jan. 27th, 2022)
忘れたくないワンマンツアー "Life goes on" at Spotify O-EAST 2022.1.27 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64859c8e968b5747874a61d1cec042844beb6cad4beea07b8cdebab239a1d61c. 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/JPCO02221210.
best answer / サムデイルーザー / ルックバック / 車の中から / サンシャワー / ハングオーバー / tear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64859c8e968b5747874a61d1cec042844beb6cad4beea07b8cdebab239a1d61c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPCO02221210.
Best Answer / Someday Loser / Look Back / In My Car / Sun Shower / Hangover / Tear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a22aa7edef626fc5566f204ade719d3079691828b904d8e0b6ebb7c7518587. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPCO02202840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5fe2ecf7d01fb1391b8b9fc4e8ac2108e27c4c1f9670c201be9eadd4f91671. 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/JPCO02230920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9da3ea701be75670cbde5416c0acab1840a1a568f4768b66454aa072b7c6a6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPCO02219270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16337b256b8fac9d7acc123c6961afdd6daab05114917f291c4d66bb82c23f5. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPCO02230960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdd4e5293c9a299f04216ca2182aa317b471d1701ebdc9d64ef486e92c643d6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPCO02326310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9b12be86efeb6ba6ac29bda19b447ca4c288358572bb0ea63fc9b0830c3d26. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPCO02328450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab662b5c3811df293b91f4ff105d7a788d710516b08a33c3267fc8c827b99c0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPCO02427840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0b48ac2941eb2e691ff547928a5e722735159c6407999c3b81d7f8e000d905. 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/JPCO02512720.