Year 171 (CLXXI) was a common year starting on Monday of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Severus and Herennianus (or, less frequently, year 9
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 0x9a0051676737af28f8723a6b695806c354feaea69a8be9c2a2d2789c792b5747. 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/58e7fc4f-c95d-4a5c-ade6-3d2d92b60f0a.json and https://artists.proofprofile.net/proofs/artist/58e7fc4f-c95d-4a5c-ade6-3d2d92b60f0a.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 0xdf4da1715cf21cd355a7b8b5d73f297de9b4c2bbe9d126f375afd828ccf2e240. 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/TCJPK2068518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3250fc7117d376e335781ea2036b4f53265392ac089a0e528ba97903d371e23. 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/TCJPK2068521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75722a8e175e66bf1c516603935976df46c41b2dbda3dcafd9a825a82b676e3. 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/TCJPK2068523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b1b353c0fcbbf8fead5b22205d3395307dcdab5c77c5d598d043ac0d359f17. 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/TCJPK2068525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82b0a4bff856c61122d01dded01d135457756eeae5a996bbbac73b19b916b4d. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCJPO2144640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e446e91daea14895f05200d77f8e7311cf35ed037fc8ef7625d968a648b35b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:14Z), 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/TCJPO2144658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc576a97effd454781c9dba38c8c8eeb3773a25b3f0a8e907fa671610f6eb61a1. 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/TCJPO2144662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf67fdd4f9688c2d4b073f4ba467b9ff618849d3453d7b1453874b1b72bee7e3. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCJPO2144672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce9a5026d2bb8b245cc7895efc80b661cd375fc8c3b4f08a2c8753ed5c6ed4. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCJPO2144749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280859ccae9cfcfc64763d51a999e5af2170dd5f3ac4ef0375903db1bea31b34. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCJPP2152950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e18d0ff8aa4367b358e6d934990551cb75a36491bced4bfd9851d56a916cb. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCJPP2153457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd435d62e2136d5ae55bf19c02217ddab9a63df5e2f75efc09e2a3f31c7de26dd. 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/TCJPV2361173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6d44376c8ec9dfdde94f8d8fdbdb6efaee5f9f24846b83f33a69d4e33298b4. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCJPV2361171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3988a109d0fbeefc8caaa70be23d874ecc3948ae3ad5a90965cb6af5b115d34e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:55Z), 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/TCJPV2361176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d540fcb0816f3552b97afa4b6b62cb6478918883f166b1648ec5c7d92676263. 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/TCJPV2361178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8209d1269f10f3b85b3c311c0c442598a2616f1fb4ec0f43996e0f609d21c5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCJPV2361183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79897a5e0bb4e7b3747b83e9e1278bfed686029a13cdc255218146d6436a9ca7. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/TCJPV2361187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5ec4e0daf1beea47e93a5dbdfdaffa1623decc8b7d116214b1439b08a424aa. 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/TCJPV2361189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04cced90b008b9da5010813ed4554bae109e19144ecef9620337500ab49a50. 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/TCJPV2361191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a16ab066b21b2276160f0dca76c10cf12f03d81a5d573ba8e7a5cb5d6e703e5. 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/TCJPA2487205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5935a5af1324f82a8d49b9f158aacfd298bc52ec0aac7c88d594409a21400727. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPA2487210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce9ee37e528063388e5e929842dfd14586a0ddc1b212e7ba66cf491616a662. 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/JPVI02403990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce9ee37e528063388e5e929842dfd14586a0ddc1b212e7ba66cf491616a662. 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/JPVI02403990.
爆風マグマ音相撲Vol.10 (Live at 京都GROWLY 2024.12.28)
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