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 0xd0cee725a7a0b43e1c9edeb7a8d3d10373f5177e4b74fbd95fee345e09f84201. 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/4100b78f-aa0e-4ede-8319-28379f4854dd.json and https://artists.proofprofile.net/proofs/artist/4100b78f-aa0e-4ede-8319-28379f4854dd.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 0x7a521118e84ee1d90bc01ffe8f5fc9a169714f46f9f6bad7424e576799f3e4d3. 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/JPWP00301750.
オマエ・がむしゃら・はい・ジャンプ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f4f1df538e563bdf69fed13219dbb4ab1257d1d1ce4e93baad5f0f01f19f48. 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/JPWP00304930.
パーダラ・ブギ〜後悔するにゃ若すぎる〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f88dc3fba46af304684401eec627f9323c514e5a5e99801facce5999b70d57. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:06:08Z), 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/JPWP00401116.
全身ゴーマイウェイ/さらば青春の日々
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dbcc902e6db36f3e3e9d37ca6d42bd2504b2137902cb98d0b246b2ccbba208. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:19:50Z), 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/JPCR00602020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ef897bcdc1a6a9ea9c3fcbe1f46f504955dcc04fa9298d2d0935a3cef7438f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:56:05Z), 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/JPCR00700890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ef897bcdc1a6a9ea9c3fcbe1f46f504955dcc04fa9298d2d0935a3cef7438f. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPCR00700890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf24260e7f5f585261202aa99e6af12f0901e6c97587d6f1f5806b29040cb22. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:39:09Z), 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/JPCR00902300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1059775adf13c2a8c9ce2c31ca2c0130d254eed9b850a72407f1cc3bfecdf28. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:11Z), 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/JPM901100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5c174938fb28711ac95633b099e4600b51dd4a067d3ae26fefe546cf3264d0. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPM901100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb928504219e1c82f3b9b93cfa4dc01a48dfb4d30df3d18ab01ebc7336c0e7964. 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/JPCR00801910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2e472f77c16007af228057f701859c73adbf5fca425f8ae25361675cb457ff. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/JPM901400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9568f8665288208a92529754483b098a9d812631787d7c697c2d43d7ab468cf9. 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/JPM901600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b351cfe4a9e44c2dc2ad2db9a1fed08b47db8f94f894da8480fa2135e5cf28. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:31Z), 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/JPCR01701800.
オマエ・がむしゃら・はい・ジャンプ -20th anniversary ver.-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8266523c9281e0152ad1fa9ba1b89199ed69930bcd58279573f960120c4b1e8a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPCR01701860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a847cbdd9b81e6b5d44a18457f3dd39c9d44aa4a9257f35064309285741ac1. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:54:41Z), 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/JPCR01701830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98493aceb5c7445aefaf130d956b1ac1d8de4a58c6b4eefd150ed09c880b929. 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/JPCR02001020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb273ac5d1894962d1901583f75deb9275562abc4c74c5a8468fe09982a54e2be. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:43:11Z), 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/JPCR01907610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bafeddf33aff6e449657c341afea3d9ea84abe9787357468318f2fb2551427. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/JPCR02001030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19355fed23eef3ccd450df10cf10a9f6e545fa259aabc1200d65fdab925db45b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPM902400038.
奥野真哉(ソウル・フラワー・ユニオン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5b445fc20d0083855b93f389f51a739ff68d4b31d8497d719a41b2e224cfe2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPTE01906750.