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 0x4dd4a78ffde1ad0b79488cdffb9c1406a06ada7d7cb9101f5d21cd84bfbdad5d. 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/1a5c86dd-c765-4c57-9811-ffcc6cfa1d05.json and https://artists.proofprofile.net/proofs/artist/1a5c86dd-c765-4c57-9811-ffcc6cfa1d05.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 0xd940ae123ed28ca8aefd7e20b22c3f3f95856447d7793f766284687c54192f17. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPE560900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175c7889b0e898c33ace0d70143206e42eaa2acbd4478b5386d24c1d8a3c3f5d. 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/JPE560900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd24a82c75a5a1651d0a64619fa42aa040f9ddb448cb812f237fb55b7de5037a. 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/JPE560900623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebdf91f609c1ec19ecd59517262875721953db3f57081c2ca7a0cf48fc1198a. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/JPE561010240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2585f7da22c9cc63c2cadfd8990c56ec89c3e5dd6bfcf478a8548cd81ee424dc. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPE561112523.
生温く真紅い歪な果実、蜜を啜るのは飽きたから腐る前に残さず食べましょう。仮に愛せなくても。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e7ce1a24019d6569e2edb3d90b42f248c7b06e61c8d6d1e9d20dd13d39383. 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/JPE561114291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820c57cbd7bd18579d710243f3bd719d425ea5839b73ff00523ca0b0c9d41cac. 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/JPE561114294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48767b5357aa69c9ff86fd02e29a308acd761b69afb2e58fe78ecbe07444fb7b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPE561200515.
快楽と葬儀、満たされないディナー (feat. 巡音ルカ&メグッポイド)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc31f489ba5d4c66d314cc82cc21ab503c82ffd0bf5f13277157bac4a404a10. Chain 2 (Bitcoin): anchored in block 957684 (2026-07-12T09:22:41Z), 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/JPE561200520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6e8330ad836657be6cbd2df0ca2f9eeee93f21ce41c86e493d03db2da7a13f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/JPE561200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6365651e45ec856e4add498ed31dcabc41609d1c1085db72ca4cf5527f0807. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/JPE561703506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec5d2b56e7303ba44f353a04b9d42caa351b16d245fcbb93de50e2172b48c31. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/JPE561805124.
ご覧、蒔いた種が花を咲かせた。期待通りの汚い花。
Exit Tunes Presents The Best Of Gumi From Megpoid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587b36d0ed7cc2b6861afdd5ea9fb73214312b0a347245b2779cd270844370b9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPC231500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ee905ab3c064a0fa297b0d8b5e71eb8c33619d48c9ec8d88397a174e921646. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPC231300474.