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 0x604721a0af2b7cd99337c32ce7144ec1bfc27a163c472088b03fef3c7781aa26. 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/c09cd75d-4f7d-4c17-8f93-ec352462740c.json and https://artists.proofprofile.net/proofs/artist/c09cd75d-4f7d-4c17-8f93-ec352462740c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bulletproof [Instrumental] - Extended Mix
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 0x60c8974b557ece40b8944731cba3907971fc10b307a0301ba274c58625ed78ff. 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/3FUYEBtsmRhAOuboi5o9If.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/3FUYEBtsmRhAOuboi5o9If.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0347e1c4cf78c6664954a5639282fb48b0c94d46b881c2417bf67cf6b92d7301. 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/7KNfls0KaMuq2BxgytHkAi.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/7KNfls0KaMuq2BxgytHkAi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36c107bbbe16b4cb01a3241e2f5946ae724b46467a4fbc6e4bcc2ca300e1257. 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/4WVcO658sP3Fmc2kyhvR0G.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/4WVcO658sP3Fmc2kyhvR0G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb318d6239d3a70f27902858abfd2f5be3ee2af084ad84cf68c304a0455d93f1a. 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/0IqhT7yjV2rV1ya12LWMeK.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/0IqhT7yjV2rV1ya12LWMeK.
{"copyright_id":"0xb9e1174d78535b80a618c8f9881a65e2ca22368efbbac36beffcbb2251a69990","isrc":"US38Y2435613","name":"Can't Get You Out Of My Head","registered_at":"2026-06-04T07:48:33Z","spotify_id":"7sf4grF0sYW2M2JgV6gqkv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e1174d78535b80a618c8f9881a65e2ca22368efbbac36beffcbb2251a69990. 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/7sf4grF0sYW2M2JgV6gqkv.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/7sf4grF0sYW2M2JgV6gqkv.
{"copyright_id":"0x9de9c4a6f91cea8ff669a9fb7c24b1e3f4f6c8d9062c98a63e1c574cfa2debd0","isrc":"ATEK02299029","name":"Crying at the Discoteque","registered_at":"2026-06-27T11:46:35Z","spotify_id":"2NT1927BFofuTUfVOcHo2b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de9c4a6f91cea8ff669a9fb7c24b1e3f4f6c8d9062c98a63e1c574cfa2debd0. 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/2NT1927BFofuTUfVOcHo2b.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/2NT1927BFofuTUfVOcHo2b.
{"copyright_id":"0x851409ba432b4a5b7eded40b3202dddc3eebfbb2cd74a0f2529a8fc374cfa849","isrc":"TCAIF2492433","name":"No Caller Id","registered_at":"2026-06-04T08:06:30Z","spotify_id":"4MxRKmmyxI79W8cRy7MzsW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851409ba432b4a5b7eded40b3202dddc3eebfbb2cd74a0f2529a8fc374cfa849. 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/4MxRKmmyxI79W8cRy7MzsW.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/4MxRKmmyxI79W8cRy7MzsW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7465f7702360566683056f499a4dd060c850586fb207fde114f244a29f77d627. 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/37Nl5bg7rtLN3rLccwwZAB.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/37Nl5bg7rtLN3rLccwwZAB.
{"copyright_id":"0x1c02c79b86d6c9530204669bbe45e7340cbc5871c9a9d9c18c7c5afe9496af52","isrc":"TCAIB2421835","name":"Light up the Sky","registered_at":"2026-06-04T11:08:03Z","spotify_id":"2dFwVgcCyFDr9beDyagNZ2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c02c79b86d6c9530204669bbe45e7340cbc5871c9a9d9c18c7c5afe9496af52. 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/2dFwVgcCyFDr9beDyagNZ2.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/2dFwVgcCyFDr9beDyagNZ2.
{"copyright_id":"0xf691931368bb1127b7e5f2e006b5960d719493580664e2ea80ed70b4c316d147","isrc":"QZTAX2260895","name":"Jingle Bells (feat. Ricky Vicente)","registered_at":"2026-06-06T18:42:27Z","spotify_id":"1TG7qIbvpEdkMtTJtF2oJK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf691931368bb1127b7e5f2e006b5960d719493580664e2ea80ed70b4c316d147. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1TG7qIbvpEdkMtTJtF2oJK.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/1TG7qIbvpEdkMtTJtF2oJK.
Santa Claus Is Coming To Town (feat. Ricky Vicente)