1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x29d5d087a9360241031cdf3e69d64102e6b445b5705e1fe4f620b30f4f1f6dde. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0dce695-b51e-4dfa-996c-a89ca2c1638a.json and https://artists.proofprofile.net/proofs/artist/b0dce695-b51e-4dfa-996c-a89ca2c1638a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63e6b43653d9ed2f3ead7fe03aa77e3bd971336d7b204b1a25ec4e2cab06147. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ChuptVKu62lH0o1NsJDc0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ChuptVKu62lH0o1NsJDc0.
All I need is you (Original Television Soundtrack From "The Witch Store Reopening")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c2b57cc8697688cfd09f53e2b84c4beb3028c39faf534805753299617d163. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Y8q8RnXL2Y3T9uqeQq03G.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Y8q8RnXL2Y3T9uqeQq03G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ab2aa336f750fc25f4a515146a6b7db23bec8314f5dc81981cf4a8cb6b30d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3nwQPAN4jq3iPjPf24LYAj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3nwQPAN4jq3iPjPf24LYAj.
{"copyright_id":"0x0b57fc28894642eda8087fa5cae83769f9403e9c466490e6da74dce2f9a0056f","isrc":"KRNAR2303651","name":"Summer Charm","registered_at":"2026-06-17T19:57:17Z","spotify_id":"5RCs6GgJGyvoeoDWLRQB4R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b57fc28894642eda8087fa5cae83769f9403e9c466490e6da74dce2f9a0056f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5RCs6GgJGyvoeoDWLRQB4R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5RCs6GgJGyvoeoDWLRQB4R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd739d6f4e571084c315e312361bdb2427e2ac65e3fdf22ca7a66acdf861e84. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Zc9YRrci2e4lRV2cjGVqf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Zc9YRrci2e4lRV2cjGVqf.
〈Webtoonsinger〉 I Feel You (The Girl Downstairs x YERIN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8217be5cad285c47540533792b60b0db65e41237c4551eda3a99a8038eaae73. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qXlA3qLWeWk0leilPq9Q3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qXlA3qLWeWk0leilPq9Q3.
{"copyright_id":"0x5573afb6972b6be622cb92dfa41db6db69be588007f52bfb3e9e0382225ae97d","isrc":"QZNCB2185813","name":"Love is a Miracle","registered_at":"2026-06-26T11:27:22Z","spotify_id":"6qeBhFGcJ279T4aU5mmjqr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5573afb6972b6be622cb92dfa41db6db69be588007f52bfb3e9e0382225ae97d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6qeBhFGcJ279T4aU5mmjqr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6qeBhFGcJ279T4aU5mmjqr.
Good Job (Original Television Soundtrack, Pt. 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0acf3a2ec8d8ed6bc0f4678d2fdaa5d600b22c09a3a9e45a4359acc29f75e01. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1cMPdr10uHrvTBOiLfA3md.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1cMPdr10uHrvTBOiLfA3md.
{"copyright_id":"0x0d0828abad3cff7e343a66de2a6b91cf6f4a97d7c0cc3f8ff6db1efa987f926a","isrc":"KRA382205087","name":"Intro : Bloom","registered_at":"2026-06-25T04:37:20Z","spotify_id":"7ydnDXXiSoGsyauHUVFSeP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0828abad3cff7e343a66de2a6b91cf6f4a97d7c0cc3f8ff6db1efa987f926a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ydnDXXiSoGsyauHUVFSeP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ydnDXXiSoGsyauHUVFSeP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce31ed1ac52133b0369c2ad376f3ed90c56e983e6d4d7b7dc29b262714d5b2de. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ImbyerPmaYvCAijEsXtoD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ImbyerPmaYvCAijEsXtoD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dce733883b62507fbba63249adfef3c58669b410bfae73f6e6b81347f7c9916. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kawegHn52nQjzxZ28c9T8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6kawegHn52nQjzxZ28c9T8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50968c0e0e6b05938cfacbf28cb4016aa2f2e362487a232885ae2c193bed1c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jIrjpQr1XjunVPonA5MgA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jIrjpQr1XjunVPonA5MgA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bb1a73f965ade12c9d9e596ab89502693dbbabec254b516fb4b60ab39ac1da. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2vwQGB9ySpQDDKN5DxfXoj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2vwQGB9ySpQDDKN5DxfXoj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a989934e7d81066ca2ddd4f6a69d078f45303cb4e1da8065c465422812c5e1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ClmwNjQAz1RwLw16V8hsz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ClmwNjQAz1RwLw16V8hsz.