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 0x2ffbf0457c548f8c38ff61b7d839b3ebcfe52fe24483a2aa8bd7eca33425a88b. 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/943bb034-3344-466b-8b9b-dc77a009ee3f.json and https://artists.proofprofile.net/proofs/artist/943bb034-3344-466b-8b9b-dc77a009ee3f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Voyager: Relaxing Bossa Nova & Jazz Instrumental Music for Work, Study, Relax
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 0x99f5aeaec8dddc6bcf0a59feaafb6003fd6884c94f69c5a8072258fd4f2abc93. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262100883 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b24f994edb7465c96e7c9a80aedbaae304b323b7d0dddab6642e94b39cb358. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262100884 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8bceb8003e6200ba900b21e356199dd8b17e94ef0424078ccf825d5419dff3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262100885 — a six-check JSON result.
Passing: Jazz Instrumental Music for Relax, Night Time Jazz Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfc0bb7f4cc0f095b4202ccbe0c690024e6e6c58ae8d78be50fd91a4d14c6f9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261700237 — a six-check JSON result.
Time to Travel: A Smooth Jazz Trip with No Destination
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c36a2f10f7ecbd748afd91018c39ff42a72ca91f315362710204b737e102b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262100938 — a six-check JSON result.
Have A Nice Day: A Wonderful Smooth Jazz Journey
Bossa to Travel: Eye In The Sky, Message in a Bottle and Other Pop, Bossa Nova, Lounge Style Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ca9f36f67658736d3c56f8b6f7b478f3b325654941a4fa74b62d2029ef5c11. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900216 — a six-check JSON result.
How Deep Is Your Love (Chillout Lounge Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd88743f1dddfb66e191e36f4512846d77c15a140e635db6618e949218da2fc4. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900217 — a six-check JSON result.
Can’t Take My Eyes Off of You (Chillout Lounge Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e3b3d43b2f46ce69c91f3f9b488ff7f2af5760d9e04d8fbd45205d9f2ff9a8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900219 — a six-check JSON result.
Arthur's Theme (Best That You Can Do) (Chillout Lounge Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee8cf5cd4b52d9afad191623b10d54c34e2ae7cd66785b273d7957e84812377. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900221 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2e293aaacb89fdcf1968eae874f5fcab8d9d908b21f4043461f706375daf58. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900223 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaf68d3b3fc9998d572dfa47619bfb51585c81cd1ece1b272d52fb7c4dc7079. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK261900224 — a six-check JSON result.
Bossa To Travel (Travel Companion Meets Jessica)
Jazz Funk Beats: Funky Jazz Grooves and Positive Vibes (Live in Cremona)
Jazz Funk Beats: Funky Jazz Grooves and Positive Vibes (Live)
Don't Give Up: A Quiet Blues Jazz Traveler in a Difficult World
Don't give up: A Quiet Blues Jazz Traveler in a difficult world
A Travel with my Bro: Acoustic Jazz Fusion Across the World
Travel Companion and Friends Live: The Electric Jazz Fusion Session
While The City Sleeps: Soothing Sounds of Guitar and Soft Jazz Music
Wonderful 80's: Rock Guitar Renditions of Famous Great Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d15c42aa4b8a4e42ed2c78336a49fea356567d2339c797c8fa618f6ca95ec9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205193 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c5404350825975f21d9072d26beae6451f5526e22b42dda0dedfe929f64536. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205195 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d73d1eeb1dfeb9b2a59b84a5229b3ccac3426451a34ef16bcd0953dd5cb1b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205197 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe636bfc1771452787df4b43ed9e9be4741c73fc5163795918dae650c1408466b. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205199 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58829412625d10eb6840cd2e871f17324fbd9882fb85bc2e53399f02758512b7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205200 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d61f745b7bdaa623cf04b8a4ab0e454ce1715e8509fd3c68413e6243e303f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205202 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0a4088c4bf5118b2872925797a7a183ab90024d877824c76f6459e4fb9e02b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262205205 — a six-check JSON result.