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 0x4a2cad5e709f0fc2f4487b843432cb3abfe4d894a7e5c046e753f1d19b41459d. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fe97098-a4c0-4604-acb8-1f446687e013.json and https://artists.proofprofile.net/proofs/artist/0fe97098-a4c0-4604-acb8-1f446687e013.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Morning Sunshine Café: Sunny Bossa Nova Vibes with the Ocean Waves for Relaxation, and Positive Mood, Cafe Chill Tunes
Autumn Afternoon Chill: Sweater Snuggles & Warm Sips
Autumn Café Bar Jazz BGM: Fresh Jazz Music for Relax & Chill Time
Coffee Lemonade: Relaxing Jazz Music for Homecafe
Charming Morning at the Vintage Café: Coffee Shops, Cafés and Cozy Breakfasts at Home
End of Summer, Beginning of Fall: Music to Bridge the Gap
Soulful Moments: Smooth & Soul Jazz for Post-Work Relaxation, Weekend Chill Vibes
Café Sol: Latin Lounge Beats and Brazilian Flavors for Coffee Lovers
Start Your Day Right: Morning Jazz, Coffee Vibes, Sunrise Lounge, Wake Up Tunes
Hotel Monring Coffee: Sunrise Jazz Blend
Morning Espresso: Morning Coffee in Your Favourite Cafe
Twilight Coffee Jazz: Chill and Smooth Blends
Café de la Swing: French Manouche Guitar Elegance
Ambient Coffee Piano: Instrumental Calmness for Cafe Relax
Cafe Bellissimo: Italian Coffee Shop Ambience, Sunny Cafe Lounge, Relaxing Chill Jazz Music
Saxophone Jazz: The Heartbeat of the Café, Lounge Music, Chilled Jazz
Coffee Morning Jazz: Happy Jazz Vibes, Breakfast Coffee, Best Cafe Jazz Music
Café Ballads: Smooth Jazz for Coffee Time
Romantic Relaxing Saxophone Music: Best Saxophone Instrumental Love Songs, Soft Background Music
Sunrise Sophistication: Classic Jazz for a Relaxed Coffee Ritual
Coffee Shop Whispers: The Great Indoors Smooth Jazz Background Music
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 0x5e3d7af4465bdcc9d9a863a976c641b0cbf736ccddcba8259c7580110ff073e7. 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/IEWWH2456456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c798599ecb16a715e05a8261e7d63f0a78de973ac18091684a2942cb7fc12de. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/IEWWH2456457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94924a8e8e6313d96f91e7f12a91f91c1d1462d16a7d307397e93ffd04a1a95. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/IEWWH2456458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1ce99e1071922919fd2fd8088c587cfd6cdc8a0f32e31d412343c30b64f765. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/IEWWH2456459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16353273da8c69de407a8c5bf96b043e7aa42a32b01ff917988cac0ee7f6c0e0. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/IEWWH2456460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5074e8ef430ffd30e8c015a1798ca8d31ba0778c9451caaa9abc17a80f4275f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/IEWWH2456461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf610afb1895c93c04c088a28c7a85af36478ce1145074e3f935383c4b62cdf69. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/IEWWH2456462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004372d78dae788616707e1d72dbabdb8183aaf1622e3ea8cada5c298c44175a. 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/IEWWH2456463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcae2b6834a609ef23f803b34db1df8ffcc92ad4b22cf3e6eaaff6c6e4812260. 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/IEWWH2456464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372d72eaca171b58310683bb8cc02d64aa5419d25f001909a067a243b92ca9c3. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/IEWWH2456465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ed90715aeb234195c5baa19c41a2001d969dc3501bd259004fa0723baca67. 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/IEWWH2456466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d78ad728cf65d79f80291be57502e386384ffc8cbd186e63210bd3b541423f2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/IEWWH2456467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29438ac3dbcbba91dd4ff6171b23cb7d54071c815f3ca8824960dfdb2481c9c9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/IEWWH2456468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fefbc572cf6764cf3d37a49d67ee7808755df120f8f53396418bff68e99681d. 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/IEWWH2456469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aa1b10e4f01f49c80a656dc12a23a8cce348c392b58db68631af2eee11c0c5. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/IEWWH2456470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcca4bd866430f39c4be5908bdb7d857ec1dd6025dba3ba52d2dc81086b64b80. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/PL2E32480102.
Lounge Lilt: Rhythmic Jazz for Relaxed Evenings, Smooth Sounds for Elegant Lounges
Cozy Christmas Coffee Shop: Smooth & Chill Sax Instrumental Collection
Coffee & Mood Venice Corner: Your Cozy Retreat for Coffee, Conversations, and Venetian Charm
Mistletoe & Mocha: Smooth Christmas Jazz for the Soul
Jazz Under the Flames: Smooth Jazz & Crackling Heat for Cozy Atmosphere
De-Stress Jazz: Stop Work, Time for Coffee
Morning Coffee: A Perfect Brew to Kickstart Your Day with Energy and Focus
Lounge Jazz: Smooth Grooves for Relaxed Evenings and Sophisticated Vibes
Autumn Jazz Improvisations for the Living Room
Café Soul & Blues: Harmonica Blues, Late Night Boogie Woogie Mix, Chicago Blues Magic
Bossa in the Bistro: Vintage Vibes in the Café, Instrumental Jazz for a Relaxed Restaurant Atmosphere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4973ee6714000cfce037752175247f52f4be02a70688cc9cc6bf8c02861ced3b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488d4f010e969fd7440a065a508e32c513992b7da21e92cbbedd647f3e2dc0db. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/IEWWH2436519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc710022b54444330e4582cb68630c8d6356efd5127c403434a1e9dc2ed383e3d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543cdccdaf1d8c6be12782fe1f507a87fe12bd265ad87bd4225827fc52a0dac0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/IEWWH2436521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7aeaec32695d17ff3ab5e09b533b3ceaa7219b86fb821c4c4434c1282998e8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0ab0def191e530ef444ff47f57ac45cfab17381c28f054eda1fd5801f2b018. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ef41dde926832eaa03684176e630fdb56e45ecb78553c6771f30989345764. 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/IEWWH2436524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec81a31e0289fed4d0f5ab756f4b6989058c33362868a2c0bdafd5ee755673ec. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/IEWWH2436525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe748e8b1b2927d126b7b2308717f541f44f244a4b1a2939f4b837219a2f8b09a. 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/IEWWH2436527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7c70945498c9198d365d2d5dd47bfdb6d1c590aea7501a09d2aa91fb281b19. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4388aa1099921d58b7267d66e89ac6a80c1a59c07d85c4c9307dc9bf1003c6a4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/IEWWH2436531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e49fe45eca82f38853f2a7c58af59c8010cd986068bd2faae622631f77cefe0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEWWH2436532.
Warm Autumn Café Atmosphere: Instrumental Jazz Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47347234dd0143c7126453647739fe1ed9f950bd45b402100665f9ccb540469b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/IEWWH2401736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d3c61d3677c51e185216233f5b8385bfb5f63c2d9b5be09ef433d9ec55d6e5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/IEWWH2401737.
Coffee Break with Smooth Jazz: Lazy Time, Smooth Piano Jazz Music Collection