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 0x1480969c64392aa9f2ef75f00cf4a0ef80f2630604b5e179e12823b770490b88. 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/661371f9-811a-4e7f-aa2c-799e6181fb31.json and https://artists.proofprofile.net/proofs/artist/661371f9-811a-4e7f-aa2c-799e6181fb31.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 0xce25de12d6d4a71d3199d3e805c0b6922f84aa88d5b9dc5661015c83f2db34c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/50uyJZ8OBvnP3C25jVs5B6.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/50uyJZ8OBvnP3C25jVs5B6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da37f60824c0683e9cd9c1b3a97eeaec9a14bb3d309d680b75892fa7eb14191. 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/4Rz0P4dIS3gLBoPKhzNxXa.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/4Rz0P4dIS3gLBoPKhzNxXa.
Ain't a Party (feat. Harrison) - Radio Edit
Ain't a Party (feat. Harrison) [Radio Edit]
{"copyright_id":"0x98206a96b59c9f936016e212594f95551b25da446309d3493a060e78b56faaf0","isrc":"GB28K1300027","name":"Ain't a Party (feat. Harrison) - Radio Edit","registered_at":"2026-06-05T11:03:50Z","spotify_id":"2RLnTmeIdGPEGivjXAR6QT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98206a96b59c9f936016e212594f95551b25da446309d3493a060e78b56faaf0. 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/2RLnTmeIdGPEGivjXAR6QT.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/2RLnTmeIdGPEGivjXAR6QT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0431e3777ede00840225881c96addc19e783232064fd9d838bd595e69a52b354. 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/0Nazz7Eq3kzsYvCQP91RCo.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/0Nazz7Eq3kzsYvCQP91RCo.
{"copyright_id":"0x7c64f0e2d4b61cdbea304156cceaf403c0a89f6d9bc7340310e657d6010a578a","isrc":"NLS241502428","name":"Sally - Frontliner Remix","registered_at":"2026-06-11T18:11:04Z","spotify_id":"3JHwV3drTv6Qr3R3wpbrya","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c64f0e2d4b61cdbea304156cceaf403c0a89f6d9bc7340310e657d6010a578a. 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/3JHwV3drTv6Qr3R3wpbrya.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/3JHwV3drTv6Qr3R3wpbrya.
Earthquake To The Club (Mix Cut) - Hardwell Mashup
{"copyright_id":"0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb","isrc":"NLQ8D1800154","name":"Earthquake To The Club (Mix Cut) - Hardwell Mashup","registered_at":"2026-06-10T16:38:08Z","spotify_id":"4xDSER1FkdFEO8GZoBye6j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb. 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/4xDSER1FkdFEO8GZoBye6j.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/4xDSER1FkdFEO8GZoBye6j.
Earthquake to the Club (Hardwell Mashup) - Mix Cut
{"copyright_id":"0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb","isrc":"NLQ8D1800154","name":"Earthquake to the Club (Hardwell Mashup) - Mix Cut","registered_at":"2026-06-10T16:38:08Z","spotify_id":"3lyVwYiacjoMTq0jWaaZI3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa7300c5a33a282e200872a83e2614cd4cde98a2be6e483df1fefc5e0a51afb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3lyVwYiacjoMTq0jWaaZI3.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/3lyVwYiacjoMTq0jWaaZI3.
Revealed Recordings presents The Best of Big Room Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201462bb2edaadb3e7d7365bd94875e1fcfe39eea1938d5c9b7014ec225cba48. 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/5YX3hw6WPf0a2Sgf0b1L0u.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/5YX3hw6WPf0a2Sgf0b1L0u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201462bb2edaadb3e7d7365bd94875e1fcfe39eea1938d5c9b7014ec225cba48. 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/51lNSgccz20lC4CCATJejy.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/51lNSgccz20lC4CCATJejy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12963181cf1edffbaa8373105208b260634fef4a335dc86001a6c5d105cf4ae0. 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/3CQSJlsU5i5hFqsmsL1PhA.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/3CQSJlsU5i5hFqsmsL1PhA.