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 0xf544b52237327272eaf244ecd4a78711db6139175f843cb91ea4f12cf48f8f15. 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/a1b4b6a9-b63a-4e4d-9ee9-0a693cde59fa.json and https://artists.proofprofile.net/proofs/artist/a1b4b6a9-b63a-4e4d-9ee9-0a693cde59fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x86c35ff2205ae3549e78975d1ecfef653ed4ad4a277cb5de413fb52d4cf68e2d","isrc":"CA5KR0030184","name":"My Darling","registered_at":"2026-06-08T05:09:42Z","spotify_id":"4dCa3tf7dhIuFw8JokedvG","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 0x86c35ff2205ae3549e78975d1ecfef653ed4ad4a277cb5de413fb52d4cf68e2d. 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/4dCa3tf7dhIuFw8JokedvG.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/4dCa3tf7dhIuFw8JokedvG.
{"copyright_id":"0x677828f4b6be37777e0bfce5a6bb862d79af4bc2a0cd7222ccc759bf251fcc5f","isrc":"GX8KD2415732","name":"Floating On Forever","registered_at":"2026-06-04T16:21:17Z","spotify_id":"4lGsyxLCUy89VWQm9rM1ad","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677828f4b6be37777e0bfce5a6bb862d79af4bc2a0cd7222ccc759bf251fcc5f. 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/4lGsyxLCUy89VWQm9rM1ad.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/4lGsyxLCUy89VWQm9rM1ad.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc6a3821711e6c8ebedd0bd223fdcd45f143796508aec647df3c728cd52d5b2. 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/0fvlZ9a5CzUp1vsgKA6fHy.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/0fvlZ9a5CzUp1vsgKA6fHy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ef5c44fc924470c02ea08af4ecc8a6753bcfc5e971b9b2344e1ed6675c9966. 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/63obeYelW3jeGukuEJl55v.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/63obeYelW3jeGukuEJl55v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5758ae41f6b18f405e37014b2002730b92f881228825a475ce36ea5dfc925c. 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/7mikFzgZIpagQ3JEghvOaz.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/7mikFzgZIpagQ3JEghvOaz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b26ff43c2926f34580eb78ee43585b5ceee9fa047f5ce5203e98fd03746042. 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/3uZtjB28HBY9CjOm2sHg5A.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/3uZtjB28HBY9CjOm2sHg5A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7b6623a46d2f901817c7474616a635954720ed36691f684ebe0717cfde2cb2. 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/6eYQqQhTcEkeSxkJ6wHMmf.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/6eYQqQhTcEkeSxkJ6wHMmf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038ba15abc0abc71c1bff7b06d04154e831b97f7ab858c789393f4c1f35a2efd. 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/6K6t1d4e7vSN7ScHW5txAL.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/6K6t1d4e7vSN7ScHW5txAL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c65a57b5ed5561a460d9af574797e81658bd0ac7c8f1474cc66a0c2d3a0120. 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/5uaC4S9C5CsMBY8QeTyB1E.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/5uaC4S9C5CsMBY8QeTyB1E.
{"copyright_id":"0x9826de76fff2b5eb2defdb45d82a50c986e54240ee4fe0c143dfde2456dc0191","isrc":"DEXW62300068","name":"August Nights","registered_at":"2026-06-08T22:24:23Z","spotify_id":"597fX3fYuGJsOwTjSC8l3N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9826de76fff2b5eb2defdb45d82a50c986e54240ee4fe0c143dfde2456dc0191. 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/597fX3fYuGJsOwTjSC8l3N.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/597fX3fYuGJsOwTjSC8l3N.
{"copyright_id":"0xdce7e02af0ce2014c5d99f929c4f2b4e7da3bfd5106d3dc3225cc680552d15c9","isrc":"BE8LH2200154","name":"Say Goodbye","registered_at":"2026-06-18T04:30:15Z","spotify_id":"5A0ixQqRiDB7yPKlMcIYRL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce7e02af0ce2014c5d99f929c4f2b4e7da3bfd5106d3dc3225cc680552d15c9. 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/5A0ixQqRiDB7yPKlMcIYRL.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/5A0ixQqRiDB7yPKlMcIYRL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32133d78e5ca8467434a930bb11988cf5a06c5906f3120bf02b2a795dbcb9fe6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6XakZY8dpvFsecV1qJ4DLL.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/6XakZY8dpvFsecV1qJ4DLL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeb5e7c479b1d9f7ddf54807d9d84d6c684d35c50dd62cae11267b298db6c7a. 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/2fRFQMBELPELAzbUG2PKWC.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/2fRFQMBELPELAzbUG2PKWC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fa38b6482cd8dc8b031aa547026b66b94b6dbcbdd23a56bd4f21a392843a8e. 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/2KS1OL0gbg5oCtKcNoKt1J.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/2KS1OL0gbg5oCtKcNoKt1J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9520d65d7dc1ed2891ac061a1a7973cb059e7dad101db49f9aa222f12e30d5. 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/33dD4N02kxUbBxl8og8UsO.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/33dD4N02kxUbBxl8og8UsO.
{"copyright_id":"0x9e5d3ffd552fbd6ca8e9ad2d9a823b25971c2ed26c6211883438ee7cf45ad55b","isrc":"NLT2H2200209","name":"meet again","registered_at":"2026-06-06T18:53:00Z","spotify_id":"7pTHDsuijpklYBKDDiCh8f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5d3ffd552fbd6ca8e9ad2d9a823b25971c2ed26c6211883438ee7cf45ad55b. 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/7pTHDsuijpklYBKDDiCh8f.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/7pTHDsuijpklYBKDDiCh8f.
{"copyright_id":"0x126f97bb8e177bf4dde0d22622da163d21f158861d32a46f59f6682af3be805a","isrc":"NLT2H2200147","name":"Give Me Something","registered_at":"2026-06-27T11:38:11Z","spotify_id":"3wACqnnsqWEvbLN2vtrCrS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126f97bb8e177bf4dde0d22622da163d21f158861d32a46f59f6682af3be805a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3wACqnnsqWEvbLN2vtrCrS.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/3wACqnnsqWEvbLN2vtrCrS.
{"copyright_id":"0x3388bfbd731e6f70a4bdb3c7cca376d7f6b1ed5d6ff822f6a0475a673fd2336c","isrc":"NLT2H2200091","name":"With You","registered_at":"2026-06-22T04:57:08Z","spotify_id":"0YbswEaD217LLxRUkNfk4R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3388bfbd731e6f70a4bdb3c7cca376d7f6b1ed5d6ff822f6a0475a673fd2336c. 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/0YbswEaD217LLxRUkNfk4R.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/0YbswEaD217LLxRUkNfk4R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1896cf4064970b5a5de0c0072b254765ec375b7197d1901770849179a9ba632. 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/1B9eIRSUIgHjdZzIJxoupN.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/1B9eIRSUIgHjdZzIJxoupN.
{"copyright_id":"0xcb290820b8cacd5f2b2b414b13fdfd6e509be317690beff6899ca0aba12dabe9","isrc":"DEXW62400152","name":"when will i get over u?","registered_at":"2026-06-05T22:20:48Z","spotify_id":"3fIkdJQmqMm45YfSmpuYqP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb290820b8cacd5f2b2b414b13fdfd6e509be317690beff6899ca0aba12dabe9. 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/3fIkdJQmqMm45YfSmpuYqP.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/3fIkdJQmqMm45YfSmpuYqP.
{"copyright_id":"0x9cca60131fb8f0e8bd48e3d2235e102abcf20a5c42debf4219f865e1c26a93ac","isrc":"SE5752425875","name":"Like You Do","registered_at":"2026-06-08T13:52:16Z","spotify_id":"1oNQNtCaAvapF5wpwSy6Xb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cca60131fb8f0e8bd48e3d2235e102abcf20a5c42debf4219f865e1c26a93ac. 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/1oNQNtCaAvapF5wpwSy6Xb.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/1oNQNtCaAvapF5wpwSy6Xb.
{"copyright_id":"0xc7f46aa474f4af6c8a8035d01ef7678f58474f80402ed221d6f1b8ef977c6b3e","isrc":"NLYK92400198","name":"Silver Lining","registered_at":"2026-06-04T10:51:16Z","spotify_id":"6zhKCjORnUNqRLS6hDKCTE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f46aa474f4af6c8a8035d01ef7678f58474f80402ed221d6f1b8ef977c6b3e. 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/6zhKCjORnUNqRLS6hDKCTE.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/6zhKCjORnUNqRLS6hDKCTE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9520d65d7dc1ed2891ac061a1a7973cb059e7dad101db49f9aa222f12e30d5. 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/5zGjTsKmQCfk2k5pjKRYSY.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/5zGjTsKmQCfk2k5pjKRYSY.
Lounge Covers Of Popular Songs 2023.01 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeb5e7c479b1d9f7ddf54807d9d84d6c684d35c50dd62cae11267b298db6c7a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vmIyxve5Dh3ZED4M6IAI9.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/4vmIyxve5Dh3ZED4M6IAI9.