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 0x60674479c812dff136b9dc5166613f69eeed970c8247da71892d9a210909ebc6. 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/61cb2778-4608-44d5-a85c-680c1a16d011.json and https://artists.proofprofile.net/proofs/artist/61cb2778-4608-44d5-a85c-680c1a16d011.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 0xedf2fb0d77c0545976a2d45e11fa9298b3f8cdb80586c061271fd2f83e88b67b. 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/2aIvE4nIrSIlu0aRlyK3Ta.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/2aIvE4nIrSIlu0aRlyK3Ta.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4c699ba52802595f1f7d9b34a1d16c5096cb59b5dd44234280b7e2531c436f. 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/2xH4PLKoNGn7NfAVzOnMuB.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/2xH4PLKoNGn7NfAVzOnMuB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccc06e834b75d01454a70add5a18386944ef5dfe4fc2f8a6a1f8cc56004db71. 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/4fWlLzIHfY01ob8RyHz6es.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/4fWlLzIHfY01ob8RyHz6es.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd546f35fb5152beaa1cf182081afcf477fb7975029a313b209728e190f811bca. 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/74gT91TZ3KCEHoamz4FcTn.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/74gT91TZ3KCEHoamz4FcTn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d9214d2abe2742bc8144104b2d01f16a11d5bc3be68908ef725cd06a4d02e1. 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/4XmJNY1HRSJARYCeookyx1.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/4XmJNY1HRSJARYCeookyx1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794007f053ede00040f6c78ed213841fbf9dbd396a5a4304b7cea26ea3024107. 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/0E9M1YDzuSKcjEqcJza3YU.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/0E9M1YDzuSKcjEqcJza3YU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3858bccc7c2b780c254d77bd8067e99bce5f575e442699c69f23fbcaaf19b1c. 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/7pegq0L8kiWiQTjah16C3c.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/7pegq0L8kiWiQTjah16C3c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a01a011c25b6e4f9cd1cb74a5c6ee42395d696d32e96593d4eed8c35b5c849. 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/57T0beFkJqQtEMCKnXHkXb.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/57T0beFkJqQtEMCKnXHkXb.
{"copyright_id":"0x5b5ab0ef1ee4a34223cc5a9a0d31fd74042b50bd90dd18c117c63536f280cc9e","isrc":"QZTB92338246","name":"2 IN THA FRONT","registered_at":"2026-06-22T02:43:55Z","spotify_id":"3OeNluI7zexeBRNStwFYq1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5ab0ef1ee4a34223cc5a9a0d31fd74042b50bd90dd18c117c63536f280cc9e. 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/3OeNluI7zexeBRNStwFYq1.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/3OeNluI7zexeBRNStwFYq1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fc978b04b95a04fbdda44f4f13826bc6f1d17207655d0c89d8989b0231dac9. 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/74hMYkx291xNQyuu4r5GHQ.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/74hMYkx291xNQyuu4r5GHQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd0646762ac6e35324b2e792050088d3a3e223cfd82086c7a28e0ec52a6c872. 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/4hc8t5QFBBfujPMA01yuuq.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/4hc8t5QFBBfujPMA01yuuq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd886cfd89b9fff827c764d8fb805f48075ff593c414aeda4b556238541ad2649. 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/1Xfs5Nh48DNL5RJs8tkyzv.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/1Xfs5Nh48DNL5RJs8tkyzv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a778941121a47c368a266d5a4b7561f0f19c257b09b5710cd2cac2364ddc16f. 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/0eeWgR8w29Z2JQOaeUbPPX.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/0eeWgR8w29Z2JQOaeUbPPX.