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 0x6f2c6805e49a3bb2d8eedf9c91192ecf8ba6f4752af25a5acc44f1161bd1fe94. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c95072b7-0994-4b4a-b382-68850e193af7.json and https://artists.proofprofile.net/proofs/artist/c95072b7-0994-4b4a-b382-68850e193af7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbc494a5d1a04ba54c9044f0bd977739d2d00cb4d5899a08c2aa4cc65ece4c522","isrc":"DEQ022390447","name":"Butter rein, Kuchen raus","registered_at":"2026-06-25T22:01:42Z","spotify_id":"3IDzdEAGqXxMyLnNtcimcr","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 0xbc494a5d1a04ba54c9044f0bd977739d2d00cb4d5899a08c2aa4cc65ece4c522. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IDzdEAGqXxMyLnNtcimcr.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/3IDzdEAGqXxMyLnNtcimcr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9067616af69d232b7be35a99a3ace4f4960fb064002c0f259fcfe586571deb36. 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/37pQdoDwAPlvPodOl3sJbb.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/37pQdoDwAPlvPodOl3sJbb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd396de10c07e814540f8092a3279e3c14d2a2ddf30a9b21b594b072f8af0a455. 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/0QDwGhVC2VuaoRTUPqhHUz.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/0QDwGhVC2VuaoRTUPqhHUz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeced4d9c38edb9c9e210481f381e6c7fd18a4ed9b5e455e86b4366cbd81c65. 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/7yuaFlksJa8CiH4Ge8AgiQ.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/7yuaFlksJa8CiH4Ge8AgiQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de3520a5da7e3f126751684161fc388f4a7a704d18e38a8abaa2f7697bf5645. 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/5CThjAYMPXDt2kJe1ley7O.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/5CThjAYMPXDt2kJe1ley7O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4900c542c6983913336ef55cdfb029001fc94d7be207a7cac78990f463979b56. 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/5IQxqC5A2I8jVhGHyWx1sQ.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/5IQxqC5A2I8jVhGHyWx1sQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ecefd45b52ea7a42ac2817ce6e31ddb876530b599eec0726cf3d7521d56f2e. 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/4Fh3YavtkpXqagFe73QMux.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/4Fh3YavtkpXqagFe73QMux.
Mula 4 Life - Figub Brazlevic Remix Instrumental
Husten - Figub Brazlevic Remix Instrumental
Mula 4 Life / Husten - Figub Brazlevic Remix
Unterm Untergrund 3 1/2: Upstairs at Björn Eric's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9df3b340a51e080ac9d41cd6b4d5e2567c134f51f6f0c3b67c79c040f5c4f8. 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/72LltDVzEAPRGFI1AIIZiF.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/72LltDVzEAPRGFI1AIIZiF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6da3f0357612d91956e12765c347acfb5ff8dfecf228fb4112bd4646b871a00. 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/7MDeS95jnCrgnomHZ3BIJA.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/7MDeS95jnCrgnomHZ3BIJA.
{"copyright_id":"0xab4dd085fb627f0a9d52391552e3f5cf0f93ab0afca4c67fcdca2ce02effa754","isrc":"DEQ121855983","name":"Bar Bezahlt","registered_at":"2026-06-11T02:58:32Z","spotify_id":"6BHFjUknL8t4MeAdJD2krX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4dd085fb627f0a9d52391552e3f5cf0f93ab0afca4c67fcdca2ce02effa754. 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/6BHFjUknL8t4MeAdJD2krX.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/6BHFjUknL8t4MeAdJD2krX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81561ac2933327fa96ea39a10843013d2f2c7efb7e406cb6ca3ec4336a33e450. 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/4C4Y5QZ795idSXVcSer9z3.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/4C4Y5QZ795idSXVcSer9z3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ca4b076fe8bceb255ae4d3edb45d5fea0527875731adc06aca5142ddb0c92a. 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/5gFZJeWnucDcMFNu0Qz4ox.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/5gFZJeWnucDcMFNu0Qz4ox.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a604a9fadf071faaf150060bed5beff5c85fe1409946e5e129369f262c85cf. 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/1YlqFVurRgHPn29vRp8A9y.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/1YlqFVurRgHPn29vRp8A9y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a08f4ac0d2f2e372aadbbe22b63bcfb80fffd07041d2a733d95d594446ef8a3. 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/18NdV6rGI3rCkp3jUC6pA2.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/18NdV6rGI3rCkp3jUC6pA2.
{"copyright_id":"0x5748ce55b6e2f0f6c6a8da597573dbe8a52a0021cd0f7a07128b4d78f3ad6dc6","isrc":"DEQ121855988","name":"King vom Hustlebach","registered_at":"2026-06-20T06:35:48Z","spotify_id":"1lJIrqjIy8oAxfsQTY185x","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5748ce55b6e2f0f6c6a8da597573dbe8a52a0021cd0f7a07128b4d78f3ad6dc6. 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/1lJIrqjIy8oAxfsQTY185x.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/1lJIrqjIy8oAxfsQTY185x.