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 0x2e5ea3b6d15822f90820c4cc778125336b3b9ef48d447676df4123a6092636f4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a184f64-c66c-4fbb-a075-8b76c65e6e0c.json and https://artists.proofprofile.net/proofs/artist/4a184f64-c66c-4fbb-a075-8b76c65e6e0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Convincing Myself Not to Sell My Guitar, Vol. 2
Convincing Myself Not to Sell My Guitar, Vol. 3
Convincing Myself Not to Sell My Guitar, Vol. 4
Convincing Myself Not to Sell My Guitar, Vol. 5
Heart and Soul: Throat Singing for Yoga, Meditation, and Relaxation, Vol. 1
Rockfall: Throat Singing for Yoga, Meditation, and Relaxation, Vol. 2
Spring Winds: Throat Singing for Yoga, Meditation, and Relaxation, Vol. 3
Draining Geyser: Throat Singing for Yoga, Meditation, and Relaxation, Vol. 4
Soul Sun: Guitar and Nature Sounds for Relaxation and Meditation, Vol. 2
Lake Essence: Guitar and Nature Sounds for Relaxation and Meditation, Vol. 3
Soothing Sounds: Guitar and Nature Sounds for Yoga and Relaxation
Refrain - 20th and 21st Century Guitar Works