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 0x7dd529e7c5577af9748bc17f0f6fa1469415cb6f8a39a5ef9c0ca522d5fe5fd9. 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/e5db2bc6-3803-4d20-bbd1-b9f2c4b688a5.json and https://artists.proofprofile.net/proofs/artist/e5db2bc6-3803-4d20-bbd1-b9f2c4b688a5.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 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 0x84f7c6734c7227f2f0cee551e6f4fd299d68cfb64abd950c1ec7ee9cce635237. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPVI08400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085eb1a781a4e48f8b00ed3f32339b5ce85450f6758c7e368c2f938b6883210a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPVI08500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f4565701a0787dcb9a7e91c5c4fa75cf3306d696a84212ac95a2b2b4167d37. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:45:05Z), 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/JPVI08500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e06b83e286f8bde3f11745c9f5d01b3162e142aad64054cf6d3b8af24d9b984. 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/JPVI08500290.
自歌自賛 ～ザ ベスト オブ とんねるず
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f65de1f0a161f629726fd990274bd2ac543ac4aeacdbf11bd888ce8c57d79d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPPC08601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ff4e38d627173b57a328884ec2d73811eb5a1fae8ef44c25477d623d43f3d7. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:29:09Z), 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/JPPC08601070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5942198b8f501079cadedd56fa99225a9204246a5ce790bacb05bf3754ddf07c. 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/JPPC08601110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb902bde9ae76e21adb3cbc9a4880fcc3152631b7dee394513fcfd3b9a02cc18d. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPPC08701380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcad1dd12cfa8c22973fae8a2afb6f0a2361e0d857caa009c3cb8026d9eb70b. 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/JPPC08701420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65c607ea502442910617e9ce0bf2d50ff9d07bbb37bd295482c2ecfd6b7ae5f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPPC08701520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e22a5cd74b2349846928c6ed9ef162dcb1dfb4913172dd2eda4820956c6b47. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPPC08601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46139faff5b6ab6d8e3c43cb7d45d7f746da60367ea31e4bf0beb1a96bafe12. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPPC08801790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb902bde9ae76e21adb3cbc9a4880fcc3152631b7dee394513fcfd3b9a02cc18d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/JPPC08701380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f65de1f0a161f629726fd990274bd2ac543ac4aeacdbf11bd888ce8c57d79d. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/JPPC08601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572d9d63e4de7fb570d21ddbea398f972dfc888665ff375bc2aa9128cfcb4f1. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPPC08901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828ace6b4bc6aaa972dd38c1e92c1e955ef30706007dbb47e8e66b20bbfff115. 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/JPPC08901860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65eee62b2985a1e38cbaf4561b075f66f7e4fe62bf9a306b6ac0d2a09c818d9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPPC09002040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0b8c21b4d0d15874fffae8570f02537d54fb8711e51d5341ca14cd2418a0f6. 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/JPPC09103400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274638310faeb844fb387f2ed5a9556eba19efe151e3bf252a70ecf780ce4c35. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/JPPC09103470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e726ec5ffe20bf30d2f38dc2bea75acf88ebf6cb54d40dfcb901f87267997a2. 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/JPPC09219780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e170f583a6fab14d476d3ba5e94a9908143356bda21dab2ec243573f97b618. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/JPPC09219820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc5dec9c305a9f772a1826858ea4e3d730fa30080fad8eb933734741e2d7a62. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:01:26Z), 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/JPPC09234560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdfd5ca8f67fd6321fcdc3c0fcdae277c13cd017c1f8469c6a29765d5d1534a. 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/JPPC09321680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89fab6a2b2a4cbaf076379a20bdca6a834f9016f85a4765a55c35bd7bba407e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPPC09321690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9117c16b741da010d2ed4293c4a8473dd08e54cf376a4849a7708c2fdcdf8957. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/JPPC09330180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a57337ed4bbf0a010b631c7987c07428a513bfd8f99498c232ae44a5409798. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:47:21Z), 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/JPPC09424460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ece0cdea578e33f3d95a0431c5fe36464091ff0ba0b3a6dad648ab0d835656. 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/JPPC09539800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b88b3446502634a755c496ddb0f990094a2ad35e43bb987662f3f560cdc402. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPPC08801750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572d9d63e4de7fb570d21ddbea398f972dfc888665ff375bc2aa9128cfcb4f1. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/JPPC08901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828ace6b4bc6aaa972dd38c1e92c1e955ef30706007dbb47e8e66b20bbfff115. 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/JPPC08901860.
ゴールデン☆ベスト ～ビクター・イヤーズ・コンプリート