David Sun may refer to: David Sun (businessman) (born 1951), American businessman and co-founder of Kingston Technology David Sun Tak-kei (born 1953), Director of Audit of Hong Kong and former pres
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 0xf5442a43f269142e395d91400d455ad3a9b6c8b6191f6736f631a7d0f8a6d3c8. 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/a3e68fcb-d6e2-4e83-9488-29193134217e.json and https://artists.proofprofile.net/proofs/artist/a3e68fcb-d6e2-4e83-9488-29193134217e.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 0xa5e4ed28c8dab1222f69edde4bb1f406189bdd5d6ddbe6635eca762703161dfe. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6P41496281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11f76c667c86d149975c54beaf2c9fc4ba90f9e7e1d2041e5f760d8d8508dff. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QM6P41496457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c5853eb5bc613f9caf73ae6d7b0005adf3983e5044727fabfc24dc7f728b9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QM6P41496458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43844fedd67084d08180c092cfe25605ad9aa5087cc95a2a3cacbc28a67315a4. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/NLA930600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd083a2a39e89cfb8dd5e58feff677eea03b22ac2c8040e17bc9d3e6971f592d8. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/NLA930600230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468d4b4f73f8572ef986c0fc234e6c60c768d4e654d19f8b6598227b8d6f0390. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/NLA930600231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3b237b2b3768519134486f4d2cf3f91f02185b15b6c3e267ab9f90b500cf3. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/NLA930600233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2371e2e07eff83c2debab857d2b71a73c61fdf1dee132eaa1b99e1808caf8f62. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NLA930800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6947159156b8c7e9af4658497e7197979588d29f6c308b7cc41b6c6cfcbf9cb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NLA930800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6180cfe09ec84e5ae7f0ac8c8179868b602b7a2960b91e6cfe39dca5552d964. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NLA930800092.
The Sounds Of Nature For A Quiet Mind: In A Monastery Garden
The Sounds Of Nature With Music For A Quiet Mind: Deep Ocean
The Sounds Of Nature For A Quiet Mind: The Secret Garden
The Sounds Of Nature For A Quiet Mind: Waterfall
The Sounds Of Nature For A Quiet Mind: Bird Song
The Sounds Of Nature For A Quiet Mind: Journey To Tibet
The Sounds Of Nature For A Quiet Mind: Tropical Ocean
Nature Sounds For Vibrant-Dynamic Energy: Stormy Weather
Nature Sounds For Deeply Refreshing Sleep: Gentle Rain
The Sounds Of Nature For A Quiet Mind: By A Babbling Brook
Nature Sounds For Yoga & Relaxation: The Sea
The Sounds Of Nature For A Quiet Mind: Zen Rock Pool
Niagara Falls (The Sounds Of Nature For A Quiet Mind)
Rainforest (The Sounds of Nature for a Quiet Mind)
Purrrrfect Peace (The Sounds of Nature for a Quiet Mind)
Tibet (Temple Chants and Ceremonial Music)
The Enchanted Cavern (The Sounds of Nature for a Quiet Mind)
Storm at Sea (Nature Sounds for Vibrant-Dynamic Energy)
Log Fire (The Sounds of Nature for a Quiet Mind)
Wolves (Nature Sounds for Vibrant-Dynamic Energy)
Dolphins (The Sounds of Nature for a Quiet Mind)
Raindrops (The Sounds of Nature for a Quiet Mind)
Sea of Dreams (The Sounds of Nature for a Quiet Mind)
By the Stream (Nature Sounds for the Very Young)
By the Sea (Nature Sounds for the Very Young)
In the Garden (Nature Sounds for the Very Young)
Lakeside (The Sounds of Nature for a Quiet Mind)
By the Pond (Nature Sounds for the Very Young)
Song of the Nightingale (The Sounds of Nature for a Quiet Mind)
The Meadow (The Sounds of Nature for a Quiet Mind)
In the Meadow (Nature Sounds for the Very Young)
Plant Music...The Secret Music of Plants
In a Country Garden (The Floral Orchestra)
Bird Song 2 (The Sounds of Nature for a Quiet Mind)
Bird Song with Angel Chimes (A Sound Sculpture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87a3843f8510b3e59d7096dc6fbcf7a72050ccf84eb5927b59b7277857e9c1b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBKPL1242946.
Bird Song 3 (The Sounds of Nature for a Quiet Mind)
Guiding Spirit - Music for Natural Healing (Remastered)
Over the Rainbow (The Solo Piano of David Sun) [Improvisation]
Summertime (The Solo Piano of David Sun) [Improvisation]
Autumn Leaves (The Solo Piano of David Sun) [Improvisation]
Peace Piece (The Solo Piano of David Sun) [Improvisation]
Moon River (The Solo Piano of David Sun) [Improvisation]
Spiegel Im Spiegel (Eine Stille Meditation)
Gymnopédie No. 1 (The Solo Piano of David Sun)
Jesu, Joy of Man's Desiring (The Solo Piano of David Sun)
The Jazz of Tranquility (Solo Piano Version)
Le Petit Mouton Noir (The Solo Piano of David Sun)
The Jazz of Tranquility (Piano & Sax Version)