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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f7233081006953b258865fa46105cb0ce564d75d28a292d428067de327c7d1. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/452b4172-693f-414f-8a87-c372013d555d.json and https://artists.proofprofile.net/proofs/artist/452b4172-693f-414f-8a87-c372013d555d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popular Songs of 10.000 Maniacs (Karaoke Version)
Popular Songs of Garth Brooks, Vol. 2 (Karaoke Version)
Popular Backing Tracks, Vol. 91 (Karaoke Version)
Popular Songs of Garth Brooks, Vol. 1 (Karaoke Version)
Popular Songs of Aerosmith, Vol. 2 (Karaoke Version)
Popular Songs of Aerosmith, Vol. 1 (Karaoke Version)
Popular Backing Tracks, Vol. 96 (Karaoke Version)
Popular Backing Tracks, Vol. 97 (Karaoke Version)
Popular Backing Tracks, Vol. 99 (Karaoke Version)
Popular Backing Tracks, Vol. 98 (Karaoke Version)
Popular Backing Tracks, Vol. 100 (Karaoke Version)
Popular Backing Tracks, Vol. 92 (Karaoke Version)
Popular Backing Tracks, Vol. 93 (Karaoke Version)
Popular Backing Tracks, Vol. 94 (Karaoke Version)
Popular Backing Tracks, Vol. 95 (Karaoke Version)
Popular Backing Tracks, Vol. 89 (Karaoke Version)
Popular Backing Tracks, Vol. 82 (Karaoke Version)
Popular Backing Tracks, Vol. 85 (Karaoke Version)
Popular Backing Tracks, Vol. 86 (Karaoke Version)
Popular Backing Tracks, Vol. 87 (Karaoke Version)
Popular Backing Tracks, Vol. 88 (Karaoke Version)
Popular Backing Tracks, Vol. 90 (Karaoke Version)
Popular Backing Tracks, Vol. 72 (Karaoke Version)
Popular Backing Tracks, Vol. 71 (Karaoke Version)
Popular Backing Tracks, Vol. 73 (Karaoke Version)
Popular Backing Tracks, Vol. 68 (Karaoke Version)
Popular Backing Tracks, Vol. 61 (Karaoke Version)
Popular Backing Tracks, Vol. 62 (Karaoke Version)
Popular Backing Tracks, Vol. 63 (Karaoke Version)
Popular Backing Tracks, Vol. 64 (Karaoke Version)
Popular Backing Tracks, Vol. 65 (Karaoke Version)
Popular Backing Tracks, Vol. 66 (Karaoke Version)
Popular Backing Tracks, Vol. 67 (Karaoke Version)
Popular Backing Tracks, Vol. 70 (Karaoke Version)
Popular Backing Tracks, Vol. 55 (Karaoke Version)
Popular Backing Tracks, Vol. 46 (Karaoke Version)
Popular Backing Tracks, Vol. 47 (Karaoke Version)
Popular Backing Tracks, Vol. 48 (Karaoke Version)
Popular Backing Tracks, Vol. 49 (Karaoke Version)
Popular Backing Tracks, Vol. 50 (Karaoke Version)
Popular Backing Tracks, Vol. 51 (Karaoke Version)
Popular Backing Tracks, Vol. 52 (Karaoke Version)
Popular Backing Tracks, Vol. 53 (Karaoke Version)
Popular Backing Tracks, Vol. 56 (Karaoke Version)
Popular Backing Tracks, Vol. 57 (Karaoke Version)
Popular Backing Tracks, Vol. 58 (Karaoke Version)
Popular Backing Tracks, Vol. 59 (Karaoke Version)
Popular Backing Tracks, Vol. 60 (Karaoke Version)
Popular Songs of Garth Brooks, Vol. 3 (Karaoke Version)
Popular Backing Tracks, Vol. 36 (Karaoke Version)
Popular Backing Tracks, Vol. 37 (Karaoke Version)
Popular Backing Tracks, Vol. 38 (Karaoke Version)
Popular Backing Tracks, Vol. 39 (Karaoke Version)
Popular Backing Tracks, Vol. 40 (Karaoke Version)
Popular Backing Tracks, Vol. 41 (Karaoke Version)
Popular Backing Tracks, Vol. 42 (Karaoke Version)
Popular Backing Tracks, Vol. 43 (Karaoke Version)
Popular Backing Tracks, Vol. 44 (Karaoke Version)
Popular Backing Tracks, Vol. 45 (Karaoke Version)
Popular Backing Tracks, Vol. 34 (Karaoke Version)
Popular Backing Tracks, Vol. 26 (Karaoke Version)
Popular Backing Tracks, Vol. 27 (Karaoke Version)
Popular Backing Tracks, Vol. 28 (Karaoke Version)
Popular Backing Tracks, Vol. 29 (Karaoke Version)
Popular Backing Tracks, Vol. 30 (Karaoke Version)
Popular Songs of 3 Doors Down (Karaoke Version)
Popular Backing Tracks, Vol. 31 (Karaoke Version)
Popular Backing Tracks, Vol. 32 (Karaoke Version)
Popular Backing Tracks, Vol. 33 (Karaoke Version)
Popular Backing Tracks, Vol. 35 (Karaoke Version)
Popular Backing Tracks, Vol. 18 (Karaoke Version)
Popular Backing Tracks, Vol. 24 (Karaoke Version)
Popular Backing Tracks, Vol. 23 (Karaoke Version)
Popular Backing Tracks, Vol. 22 (Karaoke Version)
Popular Backing Tracks, Vol. 21 (Karaoke Version)
Popular Backing Tracks, Vol. 20 (Karaoke Version)
Popular Backing Tracks, Vol. 17 (Karaoke Version)
Popular Backing Tracks, Vol. 16 (Karaoke Version)
Popular Backing Tracks, Vol. 14 (Karaoke Version)
Popular Songs of A-Teens (Karaoke Version)
Popular Backing Tracks, Vol. 10 (Karaoke Version)
Popular Backing Tracks, Vol. 11 (Karaoke Version)
Popular Backing Tracks, Vol. 1 (Karaoke Version)
Popular Backing Tracks, Vol. 12 (Karaoke Version)
Popular Backing Tracks, Vol. 3 (Karaoke Version)
Popular Backing Tracks, Vol. 4 (Karaoke Version)
Popular Backing Tracks, Vol. 6 (Karaoke Version)
Popular Backing Tracks, Vol. 8 (Karaoke Version)
Popular Backing Tracks, Vol. 9 (Karaoke Version)