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 0xa7f5d2da8f104db91a70e2445a044be70ba596f725a6e403e3e865a8d0fb2752. 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/fff403d7-995c-44ef-9a11-103790ec2fc7.json and https://artists.proofprofile.net/proofs/artist/fff403d7-995c-44ef-9a11-103790ec2fc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5cb873d412d41643dd0a9c39372f5554c0ef4a39fb178d83ad6f3377eb1a9280. 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/435gfUA572IpaPLw19cKkx.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/435gfUA572IpaPLw19cKkx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa3d21acbc3dce334012839f6b0c5b351fe53e5f33c550855c1252b8150e840. 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/30402m0JNTEIvajilK8uKV.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/30402m0JNTEIvajilK8uKV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de45fa6ba4f1ed3d6b5642addb1b2e1887734f5282f3b0fda15531ea5bd571. 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/04u4F6tHX1StU8TZh20f8y.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/04u4F6tHX1StU8TZh20f8y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1f9714551f4609a240bdd650afdd2f10154aa6d3f5661bf53ed6ad3f8b82bc. 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/30GKVDqX2p10mxbpVorYzC.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/30GKVDqX2p10mxbpVorYzC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a9d58d25e9f95a67395d9643ff7344fd7fa40fb9333f144c249388a2081b6e. 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/4Jvxjtn5gP60ROLdcy7wlx.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/4Jvxjtn5gP60ROLdcy7wlx.
20-LECIE GOLEC UORKIESTRA KATOWICE / SPODEK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bebdb0e749381e4286ad9f6d3df30785a44ee85f1be17bfe12e010f87f60fd. 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/53NqCxsrhchqYw5DJrtcYd.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/53NqCxsrhchqYw5DJrtcYd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bebdb0e749381e4286ad9f6d3df30785a44ee85f1be17bfe12e010f87f60fd. 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/2J4wUvn3v0d2hAKeT4lXvr.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/2J4wUvn3v0d2hAKeT4lXvr.
{"copyright_id":"0x80d7a05d028c89b659688d047cb75e5162c76baf794d0ed91983afa61fafa6cd","isrc":"PL14O2100020","name":"Lampa Alladyna","registered_at":"2026-06-27T13:09:36Z","spotify_id":"5ipbC9CzGYC0drS2qGwkMA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d7a05d028c89b659688d047cb75e5162c76baf794d0ed91983afa61fafa6cd. 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/5ipbC9CzGYC0drS2qGwkMA.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/5ipbC9CzGYC0drS2qGwkMA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6adaf388677c98d9dd8ce435fdd86e14d78283c807f3a3e6792647fc873b6bd. 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/1VHy8yHY2FO8JOOow5c0j9.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/1VHy8yHY2FO8JOOow5c0j9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771194cb986f1fbd49c22bf91e0365a8e96a5f3497eb82f0da27055ab82b4b82. 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/3A8ZgjDp0pO5FFchxB66dh.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/3A8ZgjDp0pO5FFchxB66dh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f67947e99bb67005c92786a756a554eab0eefa6896506bca3b383ca589bf42. 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/0RTVDJtAC04Hzx52c0B1gU.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/0RTVDJtAC04Hzx52c0B1gU.
Shot Yourself (feat. Kamil Bednarek) - Acoustic Version
{"copyright_id":"0xba1b0ac43dcd5a146851da20777392c4ec5f11287243f2d6d6099991e237c595","isrc":"PLA551200262","name":"Shot Yourself (feat. Kamil Bednarek) - Acoustic Version","registered_at":"2026-06-08T21:16:21Z","spotify_id":"3VRbRVVG9okLdHbMtZ5Urx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1b0ac43dcd5a146851da20777392c4ec5f11287243f2d6d6099991e237c595. 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/3VRbRVVG9okLdHbMtZ5Urx.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/3VRbRVVG9okLdHbMtZ5Urx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10a2e0b0eb587787bee960736eb8579ea1a7125235a013af791a4b0f2908bff. 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/7oPpfqZfZaCbaermRMVD7e.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/7oPpfqZfZaCbaermRMVD7e.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10a2e0b0eb587787bee960736eb8579ea1a7125235a013af791a4b0f2908bff. 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/4m4DP8KmLsNHEP66Sv37c7.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/4m4DP8KmLsNHEP66Sv37c7.