1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x03f3942599ffc61279c799334136aea111a9c4a99326fe1d4a0d6923a2d4c9d2. 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/541f410e-80f6-4632-9add-e42ead124d7c.json and https://artists.proofprofile.net/proofs/artist/541f410e-80f6-4632-9add-e42ead124d7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x0ab660de38e740d38b223624054c0fdfe7def368f1d8ff3bed4aea63e5e707d8","isrc":"USRC11702829","name":"Wolf (feat. Quin)","registered_at":"2026-06-05T15:42:04Z","spotify_id":"3SHJLQK4Nfgg7eYMvMElnF","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab660de38e740d38b223624054c0fdfe7def368f1d8ff3bed4aea63e5e707d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3SHJLQK4Nfgg7eYMvMElnF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3SHJLQK4Nfgg7eYMvMElnF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69c5248cf07c6506419b99e10dd8d8c10b97c5cd61e4e47b4901874601e27b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1w62bHcCzysJLbKEGuXykx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1w62bHcCzysJLbKEGuXykx.
wunna dem (with QUIN) - pt.1 Endel Sleep Soundscape
Since I Have A Lover (Endel Sleep Soundscape)
{"copyright_id":"0xd0d318686e5a2c319a9816b3d9fffd405af1758b4484d69de842fdfac895ce8c","isrc":"USUM72309755","name":"wunna dem (with QUIN) - pt.1 Endel Sleep Soundscape","registered_at":"2026-06-11T14:03:31Z","spotify_id":"1r1s6XqsjAB5IsVp7TlMNF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d318686e5a2c319a9816b3d9fffd405af1758b4484d69de842fdfac895ce8c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1r1s6XqsjAB5IsVp7TlMNF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1r1s6XqsjAB5IsVp7TlMNF.
wunna dem (with QUIN) - pt.2 Endel Sleep Soundscape
{"copyright_id":"0xc0d00201e0b3ee5572ffa3a65a73f41f8db846fd2df1f3dc24ad0c36d2ad1eb3","isrc":"USUM72309756","name":"wunna dem (with QUIN) - pt.2 Endel Sleep Soundscape","registered_at":"2026-06-11T14:00:48Z","spotify_id":"2KQnJoeDU7oinmm2obk1rX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d00201e0b3ee5572ffa3a65a73f41f8db846fd2df1f3dc24ad0c36d2ad1eb3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KQnJoeDU7oinmm2obk1rX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2KQnJoeDU7oinmm2obk1rX.
wunna dem (with QUIN) - pt.3 Endel Sleep Soundscape
{"copyright_id":"0xedbf977284906f112c7d722b4e530b4db02b2996e76c88bb67af8b0c1d7cb4d4","isrc":"USUM72309757","name":"wunna dem (with QUIN) - pt.3 Endel Sleep Soundscape","registered_at":"2026-06-11T14:02:36Z","spotify_id":"5yvPIObiswYHK7jHDjsqdc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf977284906f112c7d722b4e530b4db02b2996e76c88bb67af8b0c1d7cb4d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5yvPIObiswYHK7jHDjsqdc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5yvPIObiswYHK7jHDjsqdc.
wunna dem (with QUIN) - pt.4 Endel Sleep Soundscape
{"copyright_id":"0xbabfc1cc3f06928541568b8c6ec0efcd0ae60b392800e41981021fe9af70c2c8","isrc":"USUM72309759","name":"wunna dem (with QUIN) - pt.4 Endel Sleep Soundscape","registered_at":"2026-06-11T16:07:45Z","spotify_id":"3WVTMnmp4AexktSHdsTJz7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabfc1cc3f06928541568b8c6ec0efcd0ae60b392800e41981021fe9af70c2c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3WVTMnmp4AexktSHdsTJz7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3WVTMnmp4AexktSHdsTJz7.
wunna dem (with QUIN) - pt.5 Endel Sleep Soundscape
{"copyright_id":"0xf6810fb30488ec6470dc66abe97ca7b190d0d0a3cf24fc4a23aa1aae194f584a","isrc":"USUM72309758","name":"wunna dem (with QUIN) - pt.5 Endel Sleep Soundscape","registered_at":"2026-06-11T14:00:48Z","spotify_id":"62m8Qz6RWGxWsIktDx76KQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6810fb30488ec6470dc66abe97ca7b190d0d0a3cf24fc4a23aa1aae194f584a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62m8Qz6RWGxWsIktDx76KQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62m8Qz6RWGxWsIktDx76KQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd28f80a1387f83832ee8da565859cde33a35700e5668428a05048ff0097b04. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6biOWQ7B2x5VDxfZrQxg44.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6biOWQ7B2x5VDxfZrQxg44.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7ea72712ec796e53d651ff4bbb13b523f364bac5377de76986f7bc6fa5777e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75lHm1sBz6m6ytBR4CBmBP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75lHm1sBz6m6ytBR4CBmBP.
{"copyright_id":"0x056cf1bae6f24cede1f6b3a1036d0d21cd0d3b247f77c38522a8b7873a0ba823","isrc":"QZCE61884682","name":"Ready 2 Ride","registered_at":"2026-06-07T07:02:45Z","spotify_id":"1q61CgKSbNYxkKbkOYKblr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056cf1bae6f24cede1f6b3a1036d0d21cd0d3b247f77c38522a8b7873a0ba823. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1q61CgKSbNYxkKbkOYKblr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1q61CgKSbNYxkKbkOYKblr.
{"copyright_id":"0x2a413157f7fead67e616ac32afdd896af7222d2a208bcfdb03ab35e54db574ac","isrc":"USRC11900967","name":"Old Wayz (feat. QUIN)","registered_at":"2026-06-24T11:37:59Z","spotify_id":"1KepJo4eckxQfIV283JUZU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a413157f7fead67e616ac32afdd896af7222d2a208bcfdb03ab35e54db574ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KepJo4eckxQfIV283JUZU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KepJo4eckxQfIV283JUZU.
{"copyright_id":"0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0","isrc":"USRC11502878","name":"Think About You (feat. Quiñ)","registered_at":"2026-06-04T14:28:38Z","spotify_id":"0RFY3tFgxqyWSwWZ9MMR6Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0RFY3tFgxqyWSwWZ9MMR6Q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0RFY3tFgxqyWSwWZ9MMR6Q.
{"copyright_id":"0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0","isrc":"USRC11502878","name":"Think About You (feat. Quiñ)","registered_at":"2026-06-04T14:28:38Z","spotify_id":"76cdpJtbucm5LkjJ073uwP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/76cdpJtbucm5LkjJ073uwP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/76cdpJtbucm5LkjJ073uwP.