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 0x618b1ed1560ae95aa9646770ae4f8342feaefb8e02eeb6f7eb9565aee4558ab4. 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/e5b1906b-f784-4bd3-8fed-ccc06a695658.json and https://artists.proofprofile.net/proofs/artist/e5b1906b-f784-4bd3-8fed-ccc06a695658.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bukas Makalawa (From "Para Sa Broken Hearted)
Bukas Makalawa - From "Para Sa Broken Hearted
Bukas Makalawa (from the movie "Para Sa Broken Hearted")
Bukas Makalawa (Original Soundtrack from the movie "Para Sa Broken Hearted")
{"copyright_id":"0x77b21b338dd5a2cc10774ef5e2bfbd35e9f68cdae855206f62bd486810602c8b","isrc":"QM4TW2083135","name":"Loved You Better","registered_at":"2026-06-25T10:34:30Z","spotify_id":"666kvHaPcLhiXAseYwvbPo","type":"track"}
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 0x77b21b338dd5a2cc10774ef5e2bfbd35e9f68cdae855206f62bd486810602c8b. 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/666kvHaPcLhiXAseYwvbPo.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/666kvHaPcLhiXAseYwvbPo.
Dalisay (Miss Universe Philippines 2022)
{"copyright_id":"0x255ddd910a19a2a47c407a7ae6ea8e9ee8cd8859d64b94317c5ee8b4bca6a73c","isrc":"QM4TX2254917","name":"Ikaw Ang","registered_at":"2026-06-20T10:21:14Z","spotify_id":"4mBPOnbmtoddxAGeHlllwZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255ddd910a19a2a47c407a7ae6ea8e9ee8cd8859d64b94317c5ee8b4bca6a73c. 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/4mBPOnbmtoddxAGeHlllwZ.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/4mBPOnbmtoddxAGeHlllwZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37862a9af15c5d0fe0e49b4e76862a33b1d0b849fabe81148c0a43d6b39624d7. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1EMOkGmVVOE8R9ZlVX3fSr.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/1EMOkGmVVOE8R9ZlVX3fSr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ef77f6b73af78d3a2aa350a69cc4a9572c6cf30cd1920e1adf7b315779533c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4z91Ta9wBP9MIrMirFH5VZ.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/4z91Ta9wBP9MIrMirFH5VZ.