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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f97229aacfad98581918f250db4c92e0ced3d6b1afcfc641c81cb3b20664db. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9f9a056-9d28-4a8e-901b-52d9fc769b89.json and https://artists.proofprofile.net/proofs/artist/e9f9a056-9d28-4a8e-901b-52d9fc769b89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nature Sounds of Shimanto River in Japan
Yakushima Island Natural sounds that are kind to the autonomic nervous system - Relax Nature Sound
The Relaxing Sound of Nature at Takachiho Gorge and The Spiritual Sound at Amanoyasukawara
KYOTO Suikinkutsu and Natural sound Healing relaxation sound
Natural sounds for relaxation recorded on the islands of the Seto Inland Sea
The sounds of the baby stopping crying and the natural sounds of prenatal care and putting the baby to sleep
Kamiarizuki Natural sounds recorded in Izumo and Okuizumo Spiritual Nature sounds that is kind to the autonomic nerves
SHONAN Seaside natural environment sounds The sound of waves that is kind to the autonomic nerves Healing relaxation sounds
The sound of a bonfire ASMR that is comfortable for the brain and ears 1 / f Fluctuation healing sound
The sound of wind chimes and the sound of nature.The sound of the murmuring and the waves of Yakushima, Higurashi of the Shimanto River.The soothing sound. The healing sound that feels cool.
Goto Islands The natural environmental sounds of the islands of prayer Healing nature sounds that gently soothe the mind and body
Okinawa The natural sounds of the beautiful sea and Yanbaru Soothing relaxing sounds