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 0x844ca35300f90416a1b42cecaf0fbd6542ab43685c65bfe7189dcbc8de11e6af. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d617766e-0c53-49c6-9227-aca662b1656a.json and https://artists.proofprofile.net/proofs/artist/d617766e-0c53-49c6-9227-aca662b1656a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd8dc3b136b4460b56239c91edf2ed9b65f15b5dc51c8e053dc480ba9e41af6d4","isrc":"DECE72106449","name":"Skyline Stories","registered_at":"2026-06-29T04:49:22Z","spotify_id":"0Yp3frOCT0TXSbtJ0JMz1j","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 0xd8dc3b136b4460b56239c91edf2ed9b65f15b5dc51c8e053dc480ba9e41af6d4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Yp3frOCT0TXSbtJ0JMz1j.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/0Yp3frOCT0TXSbtJ0JMz1j.
{"copyright_id":"0xb53fe624f61f998ae91fac4572ebeadcc231a66ed4201a8c4d94c9927ba5d917","isrc":"DEYF12300105","name":"Up im Smoke","registered_at":"2026-06-08T19:16:01Z","spotify_id":"1cjn89HlALhLQZGHjvVijc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53fe624f61f998ae91fac4572ebeadcc231a66ed4201a8c4d94c9927ba5d917. 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/1cjn89HlALhLQZGHjvVijc.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/1cjn89HlALhLQZGHjvVijc.
Kanaken Remix (feat. DaVincci, Gucci Qzi, Arrior, FFRAGEZEICHEN, Neysii, Ça Va?, Riccardo, ZINED, LIZ)
{"copyright_id":"0x845b895a92aa2a50346f9600495e9d5f4114748d669fc39865599aaca9f3b6d3","isrc":"DEVY22100024","name":"Kanaken Remix (feat. DaVincci, Gucci Qzi, Arrior, FFRAGEZEICHEN, Neysii, Ça Va?, Riccardo, ZINED, LIZ)","registered_at":"2026-06-07T05:49:11Z","spotify_id":"53aiSvBZocMbvay4BKfYyP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b895a92aa2a50346f9600495e9d5f4114748d669fc39865599aaca9f3b6d3. 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/53aiSvBZocMbvay4BKfYyP.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/53aiSvBZocMbvay4BKfYyP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482. 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/7x6trB7on7Q4nE42FTwC8j.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/7x6trB7on7Q4nE42FTwC8j.
{"copyright_id":"0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482","isrc":"DECE72303552","name":"FRANKFURT IST RAU","registered_at":"2026-06-06T11:06:38Z","spotify_id":"4bWOndbk2tC7mT9gXvs4oZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4bWOndbk2tC7mT9gXvs4oZ.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/4bWOndbk2tC7mT9gXvs4oZ.
{"copyright_id":"0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482","isrc":"DECE72303552","name":"FRANKFURT IST RAU","registered_at":"2026-06-06T11:06:38Z","spotify_id":"3kaSFzrnYErv0OCaCRgQc6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3kaSFzrnYErv0OCaCRgQc6.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/3kaSFzrnYErv0OCaCRgQc6.
{"copyright_id":"0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482","isrc":"DECE72303552","name":"FRANKFURT IST RAU","registered_at":"2026-06-06T11:06:38Z","spotify_id":"3Ka7fxOiGmaUGbS1oFPKF0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e1f61f526c1dd855fbd27bd5e4743a7f21b12725bdb238ffabecca3370482. 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/3Ka7fxOiGmaUGbS1oFPKF0.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/3Ka7fxOiGmaUGbS1oFPKF0.
Der Letzte macht das Licht aus (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44e0b3b3944c44e2b1abd9cb0c5e566ff3333707d28560e24195f144ffe411d. 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/513WgUsyV8UBgYqYVdU1Cc.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/513WgUsyV8UBgYqYVdU1Cc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44e0b3b3944c44e2b1abd9cb0c5e566ff3333707d28560e24195f144ffe411d. 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/6DRI9QTq3K6IHnGXc0UVHe.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/6DRI9QTq3K6IHnGXc0UVHe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44e0b3b3944c44e2b1abd9cb0c5e566ff3333707d28560e24195f144ffe411d. 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/60b9ht7NQkJZNUDSZfVcEH.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/60b9ht7NQkJZNUDSZfVcEH.