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 0x8d52c91ed125786e04003fa7fdb6d6bb841e2f674e4512049d03609f3c7233d7. 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/626c2252-2430-42f8-b743-b51cf481e79a.json and https://artists.proofprofile.net/proofs/artist/626c2252-2430-42f8-b743-b51cf481e79a.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 0x6d7e4b6fa2ac2dd17ae355f06329f9addaee7b326d71169a0d16e48db20d18b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPWP01970946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cec96b42c3ec7dff0a34c07c0e51542c114ae6024b949ffa15395e91a589a5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP01970947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2ceff2191482087427bf56fcf3e4348953dfcd2c28ede5d08e5fb25bfeabea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPWP01900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71ff729b817e2e9f95179d244f25b983e463d3d9f612d158e69353bee1e9915. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPWP01970949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2c6067b1110571e617c15d4359af73bb51739ca101e222b2d0998f3cdc941. 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/JPWP01970950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6a7b3ef85c1329fb05c613c5525b68204bb38b26943e6ea51115dc439359b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPWP01970951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e51efc06007d8f1d63606c5cd7a6ca9f0968bcde3e708b335b01348ffce5de. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/JPWP01970952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81df7e0ef95fac88d0ec2e9ce73393e7a5e678985daa55dba796f1f563dcf03. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01900335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa110ae93f50f0db9054bec550e69f7e648a674213869eb98526ad56e137c03b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPWP01970954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe3d17b3864f8b254714f59343a4a0a64192616100043496cebc2c3b5975748. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPWP01970955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab3fa62c8a5c5ca545d183c77ea9f0e57bf16cf063702c50d6c97b13ae98329. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPD732301660.
THE BAN(1.5TH ANIVERSARY SONG FROM GAME ”THE EMINENCE IN SHADOW: MASTER OF GARDEN”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aec23bd17fa4c114733d7421fdebf987ae629b4becff611c0ca7c9dcaf0a40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPD732400394.
LOVE OR HATE? OPENING THEME FROM TV SERIES ”VILLAINESS LEVEL 99”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf673a2042156213f884b336924767ef72900bb87e0292818e82549f40c69274c. 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/JPD732301436.
TV SERIES ”THE EMINENCE IN SHADOW” 2ND SEASON ”Everything is Changing”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21adcecfc6f3540289414b4cf0f78b23f566c1226ea5b59305a23b314b409099. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD732301254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c051a217a046224015e5aeb763c08fb9d95bea79b92e1417e6abc51a989b5e4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPD732301352.
OPENING THEME FROM TV SERIES ”UNCLE FROM ANOTHER WORLD”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6625fa12c6749ee092b01cf36478bc13fa09dd2f8dc542b5cec5743db5a4823. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPD732200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d06aa8bb1182a496449854bd07306385c43caabfd1c249dc1a529f31b472c5a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPD732200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279cc57ef98a08c673cddaec090284c728d5790192efd363bb62e58380d4d8cb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPD732200133.
ENDING THEME FROM TV SERIES ”OVERLORD IV”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9272b84df9ad1e3116b79af02308605e372f0970800fbd935f593b89a8701. 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/JPD732200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5130b3321cf6cb8cadf4022b5038a8d0ef09c1ebd40c81f40c19f419338e9858. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPD732200128.
TVアニメ「究極進化したフルダイブRPGが現実よりもクソゲーだったら」オープニングテーマ「ANSWER」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac0dfa0c7fb249e0e5f6375753944a3d4acd342be32225df51d95175457f146. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPD732100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cea2db7a75b5cfd0b07283f280dd0b81bdf4cf62af4a06e949a3d27e89f501. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPD732100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164317a57df71ac9d78a2d811fe51852941af82aa3fc66a8bb7dbba5fbde634. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPD732100131.
TVアニメ「Re:ゼロから始める異世界生活」2nd season 後期オープニングテーマ「Long shot」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb088b171cb85d1f786a8a9793a9ac7c55c1989e0e32adf53f49b01a88b1ed05. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPD732000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507937596e19cb36b198a997d10c0a43701a8091ce6f25528668265d31995e09. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPD732000474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0e2d7dddbb24bb2a950741aa288698d71b8f77b4233abfce11379af46232b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPD732000475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936103b67661455a57b2433c0458a995262066d3009e1b9340eae62795392bb8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPD732000476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2ceff2191482087427bf56fcf3e4348953dfcd2c28ede5d08e5fb25bfeabea. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPWP01900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81df7e0ef95fac88d0ec2e9ce73393e7a5e678985daa55dba796f1f563dcf03. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/JPWP01900335.