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 0xa7d5f10877ffb58ea66912a5090c0fad1bc890815187c1403fd2396c614fad23. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b837b239-f2b1-4f49-b5a2-04bbd9ab602b.json and https://artists.proofprofile.net/proofs/artist/b837b239-f2b1-4f49-b5a2-04bbd9ab602b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Samo Ku Waar/حياة طويلة مع السلام/سَمو كُوارْ - Anthem of Somaliland
Ålänningens sång/Song of the Ålander/Ahvenanmaalaisten laulu - Anthem of Åland
Elsässisches Fahnenlied (Weiß und Rot) - Anthem of Alsace/Elsass
Arise, O Compatriots - Anthem of Nigeria
Patriotic Songs of the United States of America - Orchestral/Instrumental
Patriotic Songs of the United Kingdom - Orchestra/Instrumental
I Vow to Thee My Country (Thaxted) - Orchestra/Instrumental
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 0xf61ad47635abcc84e6bc87cc0f222d39fd9ccc6ce15bc77894a6bba21fcd1cd7. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX4R52317468.
Anthem of the Republic of Kosovo (Europe)/Himni i Republikës së Kosovës (Evropa)
Om Jai Jagdish Hare Aarti (Instrumental)
The Star Spangled Banner (Organ Version)
Shree Hanuman Chalisa/श्री हनुमान चालीसा - Instrumental
Om Jai Jagdish Hare - Soft Guitar & Violin Instrumental
USA Anthem - Concert Band - The Star-Spangled Banner
USA Anthem - Soft Guitar - The Star-Spangled Banner
Amazing Grace - Instrumental - Orchestra
USA Anthem - Cello & Piano - The Star-Spangled Banner
USA Anthem - String Quartet Classical - The Star-Spangled Banner
USA Anthem - Orchestra - The Star-Spangled Banner
USA Anthem - Piano Classical - The Star-Spangled Banner
USA Anthem - Saxophone & Piano - The Star-Spangled Banner
USA Anthem - Soft Piano - The Star-Spangled Banner
Jana Gana Mana / जन गण मन/জন গণ মন (National Anthem of India - Piano)
Jana Gana Mana / जन गण मन/জন গণ মন (National Anthem of India)
Twinkle Twinkle Little Star (Classical Instrumental Orchestra)
Twinkle Twinkle Little Star (Slow Version)
Twinkle Twinkle Little Star (Relaxing Naptime)
ABC/Alphabet Song (Classical Violin, Flute, Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda46d6b4d66f427d32736cd14fd8041a8f01f9af874b5347d117ff264babe1ba. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/GX4R52490057.
Jesu, Joy of Man's Desiring (Instrumental)
Jesu, Joy of Man's Desiring (Harp and Cello)
Brandenburg Concerto No. 3 in G Major, BWV1048
Jerusalem (And did those feet in ancient time)
Fugue in G minor, BWV 578 "Little Fugue"
Focus Flow: Music for Concentration and Calm
Tranquil Mind Vibe Company: Sounds of Calm and Concentration
Waves of Focus: Songs for Concentration and Relaxation
Anthem of Germany (Das Lied der Deutschen)
National Anthem of Germany (Das Lied der Deutschen) [Instrumental]
Sounds of the Season: Essential Christmas Songs
'Tis the Season: Classic Christmas Carols
Christmas Glory: Classic Carols on the Organ
Advance Australia Fair - National Anthem of Australia
I Vow To Thee, My Country (Instrumental Versions)
I Vow To Thee, My Country (Instrumental)