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 0x218f2cb29ac30c02a215f5b8b68928bd07baca3444c20de888f69b21e76f5206. 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/06d71c82-0995-4dba-ae15-39b51e3ea3cf.json and https://artists.proofprofile.net/proofs/artist/06d71c82-0995-4dba-ae15-39b51e3ea3cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Highlights Der Deutschen Uraufführung 2001
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 0x67f30719a2b91029bbf4db898244d0a6fa620d41744976584310e41b48d26550. 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/7kyWAkchu9nmSbTsfVmRBg.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/7kyWAkchu9nmSbTsfVmRBg.
{"copyright_id":"0xfeea979128fbb0abd5938fb5bb8aa8ab600a4cfbed8b74b9108f00ab0992629c","isrc":"DEN120100706","name":"Wie Du","registered_at":"2026-06-07T17:52:10Z","spotify_id":"4RKlRQ0tzp2vmyVRCeX4p6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeea979128fbb0abd5938fb5bb8aa8ab600a4cfbed8b74b9108f00ab0992629c. 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/4RKlRQ0tzp2vmyVRCeX4p6.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/4RKlRQ0tzp2vmyVRCeX4p6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa942c5808de217eedbeb5b2d580abd4a2bc5733f72508bf872237439ee7755d. 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/6med9XNOzS0ckXLCGZ8us1.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/6med9XNOzS0ckXLCGZ8us1.
{"copyright_id":"0xc7476d7f1fbfd801b6ff2de3dd1977b2fb5b235a4eb7379a21e7685f1e0aac5a","isrc":"DEN120100708","name":"Ich gehöre nur mir","registered_at":"2026-06-04T16:21:55Z","spotify_id":"4hsXbFLO6eJBuxsb2JtaWp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7476d7f1fbfd801b6ff2de3dd1977b2fb5b235a4eb7379a21e7685f1e0aac5a. 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/4hsXbFLO6eJBuxsb2JtaWp.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/4hsXbFLO6eJBuxsb2JtaWp.
{"copyright_id":"0xd7dd9d1dfa861757caf94a65bc17eb3ee24c2df89d9a714d5f504ef960edaf7a","isrc":"DEN120100709","name":"Elisabeth, Mach Auf Mein Engel","registered_at":"2026-06-07T11:33:57Z","spotify_id":"0SGFgF5PU7VqcG1lSf1aW0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dd9d1dfa861757caf94a65bc17eb3ee24c2df89d9a714d5f504ef960edaf7a. 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/0SGFgF5PU7VqcG1lSf1aW0.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/0SGFgF5PU7VqcG1lSf1aW0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47cc8b7d0865ae2f3dd94ff1178c8ea0ec09acf67add03c1278758170c013ce. 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/50ehmDPEBD15ggH7s4MyuC.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/50ehmDPEBD15ggH7s4MyuC.
{"copyright_id":"0x6426a79eab5532eafded6228dc578338c53b6de3a60bc1d1fcccbe404feb4ca4","isrc":"DEN120100711","name":"Ich will dir nur sagen (Finale 1. Akt)","registered_at":"2026-06-07T05:32:01Z","spotify_id":"1zV8H5r0HBkN1ejH7kO3ij","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6426a79eab5532eafded6228dc578338c53b6de3a60bc1d1fcccbe404feb4ca4. 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/1zV8H5r0HBkN1ejH7kO3ij.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/1zV8H5r0HBkN1ejH7kO3ij.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee294b474b6c033023e2c4e123c4b69f4b1af9e0ae11135904816baba1398228. 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/22btLc4Y1192Ct9sx0IAW6.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/22btLc4Y1192Ct9sx0IAW6.
{"copyright_id":"0xfecda65a97bc5087f0ad516ab89ab1b1ed905cc96df8db78b8c97e2aaa59ea72","isrc":"DEN120100713","name":"Wenn Ich Tanzen Will","registered_at":"2026-06-04T16:02:07Z","spotify_id":"2ekkk5hNs66bSSPGFCw3R7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecda65a97bc5087f0ad516ab89ab1b1ed905cc96df8db78b8c97e2aaa59ea72. 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/2ekkk5hNs66bSSPGFCw3R7.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/2ekkk5hNs66bSSPGFCw3R7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fbc3f2d277ad3b26995c8c54f9e1565d9213f564803069c28812d6bf79c449. 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/2dPjFIyKlbJODIoPFA5Fmu.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/2dPjFIyKlbJODIoPFA5Fmu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb657370a056e753e72921fa2ebc742bc9783060372aea636581ccb3c13a31705. 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/5tJe55sESWHKctt9PTCpP4.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/5tJe55sESWHKctt9PTCpP4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341596c7a8f47ec813b4e56f9206ef22d06a2815f5efaa6795ff628d3024bb02. 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/2XawLlCAwdFOSS3Wp9Kd21.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/2XawLlCAwdFOSS3Wp9Kd21.
{"copyright_id":"0xfd96ffe12edd1f54e20ffcb37d9620a4506ca34bb08b9df74e54caffac71479d","isrc":"DEN120100717","name":"Die Schatten werden länger","registered_at":"2026-06-06T01:23:20Z","spotify_id":"1BSCNkV1hNCI0sAoyALGms","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd96ffe12edd1f54e20ffcb37d9620a4506ca34bb08b9df74e54caffac71479d. 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/1BSCNkV1hNCI0sAoyALGms.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/1BSCNkV1hNCI0sAoyALGms.
{"copyright_id":"0x32632d7482db70f8b6656b5186dede3bd6f3cde94a36362893c0a5d7d99cdd32","isrc":"DEN120100718","name":"Wenn Ich Dein Spiegel Wär","registered_at":"2026-06-07T11:30:29Z","spotify_id":"5H7GYfYWcr4cVlWmv6Fa15","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32632d7482db70f8b6656b5186dede3bd6f3cde94a36362893c0a5d7d99cdd32. 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/5H7GYfYWcr4cVlWmv6Fa15.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/5H7GYfYWcr4cVlWmv6Fa15.
{"copyright_id":"0x6f909c3717489e42c8c20d38a7a129b4c38f0c2ff9f311ad6aa9cb5b9c2d1e49","isrc":"DEN120100719","name":"Boote in der Nacht","registered_at":"2026-06-07T17:49:36Z","spotify_id":"6GqYVoYyY91Cij6TL6vBNS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f909c3717489e42c8c20d38a7a129b4c38f0c2ff9f311ad6aa9cb5b9c2d1e49. 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/6GqYVoYyY91Cij6TL6vBNS.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/6GqYVoYyY91Cij6TL6vBNS.
{"copyright_id":"0xa80741740df2a46b38e3c8fac6ba6c5ccd35d9bf9c5a12e95eb6db2160e8cdbc","isrc":"DEN120100720","name":"Der Schleier fällt","registered_at":"2026-06-07T05:29:38Z","spotify_id":"2lb6sHRv00Kk6IpTXCNa32","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80741740df2a46b38e3c8fac6ba6c5ccd35d9bf9c5a12e95eb6db2160e8cdbc. 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/2lb6sHRv00Kk6IpTXCNa32.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/2lb6sHRv00Kk6IpTXCNa32.