Deep Sleep is a series of point-and-click adventure games created by Polish indie developer Mateusz Sokalszczuk (also known by his online name scriptwelder). The series consists of three free browser
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 0x639d7263b572cf2e933ce0d8a4923114063078e2da1dce51b2207d413c47803f. 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/954be982-5961-45e1-81d5-848ec4c68096.json and https://artists.proofprofile.net/proofs/artist/954be982-5961-45e1-81d5-848ec4c68096.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x7a1cadb13974a5c3fa0450ef13c02420d6cc9792539bf09b12ff1846a85ff4ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS81501380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f6ef1fa1f0808c1f356540ffc91593222b5eb684f8347b6df07bd886d94b3d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5UL1006385.
Sundry of Brown Noise, Brown Waves, Tones, and other Ambiences (Loopable Soundscapes for Insomnia, Meditation, and Restless Children)
Relaxing Home Feelings - Reduce Anxiety Well Rested
Reading in the Beach - Serotonin, Mindfulness Ultimate Relaxation
No Stress Zone - Sweet Sensations Cosy Evenings
In My Place - Ambient Music for Stress Relief Pure Waves
Heute Wird Ein Schöner Tag - Happiness Frequency Deep Relaxing
Heaven on the Keys - Break Time Soft Dream Music
Gold State of Mind - Evening Calm Relax, Reflexology
Find Yourself - Peaceful Music with Wind Noise Cozy Life
Deep Breathing - Reflexology Evening Relax
Calming Tide - Boost Your Focus Warm Summer Evening
Anxiety Removal - Deep Focus Music Cosy Evenings
Ambient Sounds - Focus, Yoga and Massage, Calm, Stress Relief Music
Winter Deep Relax - Peaceful Music with Wind Noise Chill Music
Wellness and Calmness - Bliss Music, Sleeping Managing Stress
Under the Light of the Moon - Spa Treatments Relaxing Bath After Wor
Textures - Oasis of Peace Sleeping Music
Spirit Calmness - Nature Energy Healing Long Sleep
Sounds of Thunder - Focus, Yoga and Massage, Calm, Wellness Spa
Soul Soothing Music - Easy Sleep Complete Inner Peace
Soft Relaxing Sounds - Evening Calm Chill Music
Slipping Time - Trouble Sleeping Aid, Good Sleep Grateful for Life
Slipping Time - Boost Your Focus Cloud Forest
Sleep Time Sounds - Break Time Calm Within
Sands of Time - Break Time Cosy Evenings
Remembering Serenity - Nature Energy Healing Well Rested
Reiki Afternoon Day Spa - Yoga Movement Boost Your Focus
Peaceful Waves of Nature - Cozy Downtempo Music Nature Sounds to Help You Sleep
Peaceful Home - Bliss Music, Sleeping Body and Mind Healing Music
Our Spirit - Deep Sleep Power of Concentration
My Life - Calming Sleeping Music Easy Sleep Music
Melting Away - New Age Healing Chill Music
Loving Atmosphere - Inner Harmony Quiet Nights
Kundalini Yoga - Delta Binaural Beats Beautiful Sleep Music
Heute Wird Ein Schöner Tag - Nature Energy Healing Easy Going
Heaven on the Keys - Soft Meditation Music Cosy Evenings
Heaven on the Keys - Pure Waves Stress Relief Music
Soothing Waves of the Sea, Ocean and Lakes (Loopable Audio for Ambiance, Meditation, Insomnia, and Restless Children)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4dd764e5e22933f2fd2f87d7b7edfb202245bf7a114d21df101d2073f816a4. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMHNS1301858.
White Noises, Brown Noises, Appliances, and other Audio (Audio for Ambiance, Meditation, Insomnia, and Restless Children)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705c2876c11864435a685f69be857308f347edaebadcf6afc93405f6b66ace97. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMHNS1302195.