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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38902ff9c6b917c09bdc75119fa23f8fe140f12ae13224637efb83556179cfba. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77c831ab-229a-41eb-99a0-96dee10e1531.json and https://artists.proofprofile.net/proofs/artist/77c831ab-229a-41eb-99a0-96dee10e1531.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497011451b80e721de5dac4a6962166ad7bc8af716a7385220a6c3bd39b2e0d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI022300649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28453759d990e18fdd240db2b1a332418c78dc6b98a8e0a2b372e45d9785e4b6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITI022300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522a73b3612f6b297a7f15922681bff668f80bff0bec9b02420d10fe5c910b9c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI022300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb857caeaac62ace531c7e9316849e12ce9fe00d3b2de3164b78b84846c880fe4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI022300652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28453759d990e18fdd240db2b1a332418c78dc6b98a8e0a2b372e45d9785e4b6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITI022300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497011451b80e721de5dac4a6962166ad7bc8af716a7385220a6c3bd39b2e0d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITI022300649.
Jazz for a Winter Day, Vol. 2 (Jazz Lounge Vintage Cafè)
Jazz Club (Instrumental Jazz Moods and Themes)
Jazz For a Summer Day, Vol. 2 (Jazz Lounge Vintage Cafè)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6abae97cc6e374179a392b7fa0982cd80cdfa60fafca6b199fce1104e19170. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI022300751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa221b9a4d9d1b820df75dce52c2a9dc4edafe1b350e6111de844821f161a6a5. 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/ITI022300674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe5e6e4b88fc607a5a27782a2911b1746faa1e82bc3995c7718d700154c12f5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI022400107.
Bossanova & Jazz: Summer Bossanova & Jazz Vibes 2024
Jazz On The Highway, Vol. 3 (Lounge Jazz for Your Summer Trips)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ce52c3ade8c193828429e5614e90eb98a29d6b964dfe6ded47d3501a9aca0. 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/ITI021800372.
Jazz On Air Coffee Break (Lounge Jazzy Chilled Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f6de608960bb15b7f771929acd79cb8c37ba04094044b7b0c3d97af0b2266c. 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/ITI022100511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb609a50cd681b356d3c13e410b6e1f66c29f6e6fd4df5aebfc5773c056125. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI022200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7c27e6654a863831838c9167abd24acf03830aeb89efda64b3070e8399fef8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI021700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e1bcb2866f740eaa93ebaabee3a5ec2beab2d85e48afbe90f5c6c19d2c5439. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI021700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda28f516e8d4b457bcc41e8b0ac60012393781a12321db564980efb923bab69a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI021700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19230c30d7c8b7604b1b581f9fc96dbfff28c668d64cbcd21ed73497172c463d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITI021700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dd28c09b5843a182fc21e3b177e2c9209f5b6aeddc6e68e7e3e5b729620455. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI021700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f93a54469258307a0b1efeb2a68f760dfed18c9be8eff3ffd31213e20a8976. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITI021700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6917e4f2c5aeabbd181a0ced86697c25ee1313438c944015f50c40dc487cbf95. 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/ITI021700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b60db7a06ba2688032ff407f38a5e2f661c563839eb3c02aaa7a6817830fb6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITO0P0701092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fd6a9b20169826a8243fb882dccb7d3ce17ac7f2dad109cb47d10e9589b506. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITO0P0601033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eaa83ef02752693f6fb25629a6b26d7740e0f4d63be12e746260d4da6aeab0. 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/ITO0P0601034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a1c22a8cc930ad9d9b089b93f37a483ab4fc730fbc593c8344a0abdceaacc4. 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/ITO0P0601039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb9fe318f239d6e1500c00931a7c24c0332de27d503cf6c835660cc6c840025. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITO0P0502119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd08d064817e4875735eafc2a1fef80145454cc79780f83b4b27d13f2eca07e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITO0P0601028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850eaa5735649ee1f9c5d0cbf30bc7479195265e11094b21e4331dd9065cf6f0. 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/ITO0P0502114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632a61a964454e547a934cd99384db74fb64a260a899a884901bdcfdadeb99a2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITO0P0502115.
Some Kind of Blues - Jazz Mood Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ab48773131f4521c4fef08dabc42c6c534065cf634c7562c10f2be0b9aeb37. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITO0P0502118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c904b07b9963b5af3a4ce3a185be60968ce4ce976aad02607a36a0db364f565. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITO0P0401005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fc95cbc11ba7ee9411b64ac23923f026cc37e09d0f1e190be10b532a5740fc. 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/ITO0P0601310.
The Jazz House Independent, Vol. 8 (Acid Soulful Deep Techno Minimal House Jazz)
Morning Vibes (The Sound For the Breakfast Coffee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974817ded4634ff389acdf97c176a3c01edfdb0fa31116490cb3668ae753a156. 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/ITI020700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4d90c83ffbba940a1235f695c2a8dc94025b7233d54a9e0b9f2a55f7734147. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI022200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f410e82de1771422d8a936010348892099e1ceaf11cfbc87ff09fc36b6aa948. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI022200023.
Jazz House Instrumental Volume 3 (Jazzy Soulful Tracks And Instrumental Club Tunes)
Corner Jazz Club (The Unmistakable Jazz Groove of)
Jazz For A Summer Day vol.3 (Jazz Lounge Vintage Cafe')
Bonavista: capitolo 5 (Lo Greco Bros Presents)
JAZZ IN THE BACKGROUND (For All Moments Of The Day)