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 0x70f6fe028db4cf51f95b54480e76cce462680c7132eb8e575b8b5f0089834fc5. 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/519fc7ce-cf85-419c-9e3f-7767386d4e58.json and https://artists.proofprofile.net/proofs/artist/519fc7ce-cf85-419c-9e3f-7767386d4e58.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 0x04551c3ac83f61358e2ed1cc5ae95a5fdfd3d8a34e66288ecf93306d8e3beece. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UKR4Q1823783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca3e31d1345b6022ac1724c55de38e6ca08d5956d541b421142e82da01b94cb. 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/UKR4Q1823784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091e1111443702b60e4f944de3f377c51aa743d5bd0a969839d5073badeba67d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLS921846496.
Valentines Lounge Music: Sensual Saxophone Mood
Airport Mellow Jazz Lounge: Smooth Background Jazz Music, Entertainment During Travelling
Perfect Days Like This: Spring Sweet Thing, This Are the Days of Feelings, The Shape of My Jazz
Easter Piano Songs 2023: Beautiful Easter Morning Breakfast Piano Collection, Instrumental Christian Music
Good Morning Cafe Music: Mellow Jazz with Soft Piano and Relaxing Saxo to Wake You Up, Perfect Breakfast, Start Working
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd2c69ed32f4c078384e5c2396aa9ef58bfc0042e614baa4b5ad632f87e8b62. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UKR4Q2062066.
Italian Banquet: Instrumental Jazz Music, Candelight Dinner Background, Nice Time with Each Other
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998518e2353fe52204630b2cd78134a7a09426d09ebd996d44967be0196ae663. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/PLS922294420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815403700c224b14c0f9a3bbec77c485f07b04a1501f61b11fde2308aba7312a. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/PLS922368581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840a864e407c938e3fbcc89e7f2e8931a81cd470bad05473fed82b0bbcae8df2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLS922368586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8803c0e04968bfb7ea8796593480ee65b2e8f55a4593978eb6b078cdacc86caf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PLS922368587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4ab73b41e0701e6b1a36fcc56afda610632e122f1c3502d7e5d5295ed29e34. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/PLS922368588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70f5b42847bf2f043ac8460e945ec88830586573703f6344d46f835a4bc4549. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/PLS922368590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa886dfef9a48570f3126222f7eebd7455d6349ce03d4f9566a6e7b2c0a8a38. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PLS922368591.
Winter Mornings: Upbeat Jazz for Good Mood & Morning Coffee
Jazz for Your Valentine: Intimate Valentine's Evening and Night of Jazz and Love
Jazzissimo in Cucina: Taste of Italy with Upbeat Jazz
Movin' & Groovin': Saxy & Smooth Jazz, Late Night Saxophone, Sunset Summer Jamming
Let Love Flow: Celebrate International Kiss Day
Quiescent Room: Magnetic Jazzy Collection, Anti-Stress Instrumental Background Music
Bossa Nova Warmth: August Sunsets and Coffee Dreams
Notes Over a Cup: Chill Vibes from the Jazz Café
Piano BGM Jazz in the Restaurant: Best of Moody Jazz for Dinner and Cocktails Party
Love Under the Mistletoe: Christmas Charm and Intimate Dinners
Rooftop Jazz: Chillout Sax Jazz Music in Cozy Bar Ambience for Relax, Study, Sleep
Luxury New York Apartment: Elegant Jazz Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e7638257d4a9f8f54fdbafc4eb67271220639a86441a29349ef5f75418178f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKXN22444133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ea1afba57e915eac70963a020af6ed11b8244c60e79bdaf1ec1e13114a6013. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARQIW2405701.