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 0x67b23ef64979b27df123f6ddde5673a08ecffc1c0dafef26ed7ce006175c7120. 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/6e062f41-b0b4-42fe-8056-0adf3eff93ee.json and https://artists.proofprofile.net/proofs/artist/6e062f41-b0b4-42fe-8056-0adf3eff93ee.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 0x06550824c8d7fee0bff2e99e0872d6c883b43a99eb403809f9e9278f43333312. 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/6Ep56mDirnv1ORaxN061KY.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/6Ep56mDirnv1ORaxN061KY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7913c04db78b6d1eb36a4260c3168499932a3ad95cbf7623585147923d6de3be. 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/19OUxy8UVnHci0iGE5wphJ.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/19OUxy8UVnHci0iGE5wphJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1c65914cda050261bb5709b4834bda812ed46549b37b109a9de2d456a75098. 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/7gQGYDVoMwhvxpRg9jThlg.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/7gQGYDVoMwhvxpRg9jThlg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc18db72df41713b7ce912750ec20c36a9189fb94d5c099f060a8298dcd29282. 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/16utYD2Ugar5dtXE9ho2dY.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/16utYD2Ugar5dtXE9ho2dY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e182a5e3e12d1083f9d75c1d506b52676de415b0cb66695eb0fa14fd904f63. 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/44lG4OnSPFtMQfY8WLBBto.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/44lG4OnSPFtMQfY8WLBBto.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb118d64704386aa937406f5808a1e86b3e5661e12c80aff2c8bf366b62003b0c. 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/4cWIp0nhjr39id5gyxzuyh.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/4cWIp0nhjr39id5gyxzuyh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739e30931a1e41778b79569776073f0f326be5434d5ab071d7c1f44a8cd56263. 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/6XffDErDdL4ekOjbtYbzJn.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/6XffDErDdL4ekOjbtYbzJn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb288bbfd5d5e3223bc12657a890422cf367a6ba2969784f1d54175bab2037715. 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/7aSBUHT3Afmr0DZpCK22Yq.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/7aSBUHT3Afmr0DZpCK22Yq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73af435079bf4c20f86745de6f7058b06534e7abfbe8fbf4cd2a7c25f0eb1f20. 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/0cjYr4GUeZ75Lcd3Mt81uE.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/0cjYr4GUeZ75Lcd3Mt81uE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e9a383e41c18351748982e6da6d4e4da7a866a3abd6e452358a2e202403790. 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/6kCFkQcHxGS93U03eeXxxL.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/6kCFkQcHxGS93U03eeXxxL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9665966daf1ac444d3ae7a6a55507549e57ea509f5860af87d31a192baa1f5f1. 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/7ngDzdm5Wj63p72yzXyVWs.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/7ngDzdm5Wj63p72yzXyVWs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd66e92ef73c746e708cb8d9793aa810c1c82904b6687fa82b7f52894c51b317. 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/0Qk9dWXOtDK7yb2rFGaJco.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/0Qk9dWXOtDK7yb2rFGaJco.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c63047ba0a543d102db2a503249d58ab0f936087951c2b35ebcdc4abdfb67fc. 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/1tIzdM1luneWhGbVEKqw7g.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/1tIzdM1luneWhGbVEKqw7g.
{"copyright_id":"0xd8eba526e66c7be69b8a4c89f6bbd2facacd4196604f35ab143d4ac33c7f30f7","isrc":"QZNWQ2186423","name":"Outro Pt. II","registered_at":"2026-06-07T20:33:24Z","spotify_id":"4iSidEqLWDXe41kOXGrLnq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eba526e66c7be69b8a4c89f6bbd2facacd4196604f35ab143d4ac33c7f30f7. 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/4iSidEqLWDXe41kOXGrLnq.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/4iSidEqLWDXe41kOXGrLnq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9322bb20b521540305ac6f0c18267ab6bd74ade97210b798fb890d5d974d3e66. 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/6NULJjGR098Vkv179nz1jl.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/6NULJjGR098Vkv179nz1jl.