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 0x459c4aa838e77724d85665ccf4468679e4424f9950c9a32c6afa8c94e63db067. 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/e16de92e-5eb0-4ec5-a511-8f411c9cfd8c.json and https://artists.proofprofile.net/proofs/artist/e16de92e-5eb0-4ec5-a511-8f411c9cfd8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Incredible Lo-fi Jazzhop - Ambiance for Anxiety
Music for Vibing and Chilling - Superlative Jazz-hop
Soulful Background for Gaming and Chilling
Modern Lo-fi - Background for Vibing and Chilling
Chill-hop - Background Music for Gaming Streams
Extraordinary Lo-fi - Background for Focus Flow
Lo-fi - Background for Work from Home Rain
Atmospheric Backdrop for Relax, Chill and Study
Successful Music for Focus Flow - Jazz-hop
Unique Music for April Wellness - Jazz-hop
Distinguished Music for Coffee and Lofi - Jazz-hop
Alluring Background Music for Coffee and Lofi
Vivacious Ambiance for Resting with Lofi
Beautiful Backdrop for Smooth Storms and Lofi
Music for Smooth Chillings - Lively Jazz-hop
Chill-hop - Background Music for A Lofi Life
Extraordinary Music for Summer Vibing - Jazz-hop
Music for Mindful Feelings - Friendly Jazz-hop
Sensational Music for Trill Universe - Jazz-hop
Urbane Lo-fi - Background for Nocturnal Lofi
Debonair Background Music for Favorite Rhythms
Soulful Backdrop for Luxurious Acoustics
Chill-hop - Background Music for Mellow September
Terrific Lo-fi - Ambiance for Classic Stories
Vivacious Lo-fi - Background for Entertaining Spaces
Backdrop for Comforting Nights - Terrific Jazz-hop
Relaxing Music for Peaceful Studying Moment - Jazz-hop
Smoky Lo-fi - Background for Peaceful Studying Moment
Cultivated Lo-fi - Ambiance for Mellowed Out Moments
Fun Lo-fi - Background for Mellow Monday Moments
Wonderful Background Music for Lofi Icons
Music for Creative Chances - Distinguished Jazz-hop
Pulsating Music for All Night Studying - Jazz-hop
Sultry Chill-hop - Bgm for Magic Ballads
High-class Music for Chill Details - Jazz-hop
Paradise Like Lo-fi - Ambiance for Sure Gambles
Vintage Lo-fi - Background for The Time of Today
Awesome Background for The Time of Today
Romantic Lo-fi - Ambiance for Brave Dream
Sumptuous Music for Team Choices - Jazz-hop
Breathtaking Lo-fi - Ambiance for Team Choices
Soulful Music for Chill Senses - Jazz-hop
Chill-hop - Background Music for Calming Chaos
Music for Calming Lofi Moments - Dream Like Jazz-hop
Number One Lo-fi - Ambiance for Private Monday
Music for Balancing Thought - Magical Jazz-hop
Sublime Background Music for Echelon Memories
Backdrop for Chill Out Time - Warm Jazz-hop
High-class Lo-fi - Ambiance for Reading Platforms
Sunny Background Music for Connected Images
Coffee and Papers: lofi Work Productive Day
Pleasant Ambient Chill: Cheerful LoFi Vibes for Cats
Lullabies for Cats: Blended with Lofi Laidback Tunes
Focus Beat: Slow Lofi Vibes for Concentration
Lofi Workspace: Serene Ambient Sounds for Work
Lofi Concentra: Beats for Focus & Concentration
Lofi Office Rhythms: Relaxing Tone for Efficient Work
Lofi Meditation Haven: Chill Music for Tranquil Reflection
Lofi Work Echoes: Reflective Melodies for Professional Flow
Lofi Workday: Calm Melodies for Productivity
Lofi Pet Harmony: Calm Tunes for Comfort
Calm Study Tunes: Lofi Music for Memory Retention
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 0x5022f11f28e6d23ec367d8d759109608cff70632b5b1775813ba93ff52f9117e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZZ972498704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0eb5d03d6a187950515f0ddfef3a825d12477c64ace6690ee6102b37358a331. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ972498707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4585b4f88386d3707e37180027e0002d0f0f2c7d17820379187228f5c001aa6. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZZ972498708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe84e71f94f84f680061a0c7d49f28f25cf1a7dab100a5b5c38a8fe0fc28797d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZZ972498670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdfa7e01941a41607b47aeb03b640fc7e3ff26443d11911f447de42d9a2cbd4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PL0B62334410.
Relaxation Beats: The Essence of Hip Hop Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f4dd1937cf89f9be427e599b03e442fc81f1315972aada7929ba026dcaabc8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ESA012556684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd6d3f67459868c41c1007d1c10f253b249371b27de461962b8ec55c3eda882. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/ESA012556685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ccfba96622cb7aa15ff38450c8d8d9a9057bdb9a1fbf062030b2415b6c96a6. 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/ESA012556686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3336e4910babb84fab9b03076e1d6c220dae82b367ae8bffc014cfecb0e919. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ESA012556687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0580ea924755e38d5f6df170df2320529c2c0150ac2c8ccf2883c8280037fd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ESA012556688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6f46062dec795db7798abfa00fe0e815659fab66643bfbb340e3427984e82d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ESA012556692.
Relaxing Hip Hop Vibes for Mindful Breathing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b9fff2a637cd0196ee6be5caa4005ec9c858f60d3ed99a44385cd86b8c7de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTV32438229.