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 0x32d84588566c04a93dac1261e622b5b6d28a3b6a5d7352362bd3ece31746ff65. 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/7b34e036-4d59-456a-bc05-9ca9d413b1e1.json and https://artists.proofprofile.net/proofs/artist/7b34e036-4d59-456a-bc05-9ca9d413b1e1.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 0x076fc6507949a509e43ba93aca6c049963a950b1fd0c79bc2268a98de629e5a1. 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/5JGyI67ld4lwB53AWGRs8x.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/5JGyI67ld4lwB53AWGRs8x.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10ba67f29186678da7addc7b5a02d18b712670f4e8b0c017775c5b95ca85b9d. 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/5kDYSgjAEPeWwrfJD5zDV6.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/5kDYSgjAEPeWwrfJD5zDV6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafacff901774c71dbe0d7189929df0c778e670c073c761b2475249ac03ed1ab. 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/4KG4zfIYlWgI70yQyFvqIk.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/4KG4zfIYlWgI70yQyFvqIk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600d7137a581ada7da07c203e9405f40c1f76b71b6119dc7fae171f2f3c759b3. 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/1xNoeB4qqSX4VSYQRNy0FL.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/1xNoeB4qqSX4VSYQRNy0FL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21320ea91dfb1205799ce6563de097a725e37586c11a83260414ae68c6cae45. 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/1O32wJml3t1juwgmE24Jm5.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/1O32wJml3t1juwgmE24Jm5.
{"copyright_id":"0x380464813bea53adfeebbbcbd6c7aac2e0403162db8b0734192a39d758f8fa18","isrc":"TLREW2226071","name":"Pimp Hoe (Sped Up)","registered_at":"2026-06-21T09:00:05Z","spotify_id":"0zGSv8bBW7ABpHtQ9H3TU3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380464813bea53adfeebbbcbd6c7aac2e0403162db8b0734192a39d758f8fa18. 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/0zGSv8bBW7ABpHtQ9H3TU3.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/0zGSv8bBW7ABpHtQ9H3TU3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96aaacc4441b4f651bc6996643bf787857bbe37b39dff574d561a3ce92396193. 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/2x92rg1rgKHAvDeTFE3unP.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/2x92rg1rgKHAvDeTFE3unP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c11646944d3a7e80c4d470592fb45acc33b9ef28a031029c7265923e794d631. 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/5gl9EAU3FLJziCwixg3LJO.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/5gl9EAU3FLJziCwixg3LJO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f9854762db2da58accb676846f36423b29380d43596d52c1b0844b20cccb1b. 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/4BVgXFTskBlII2p45ZNsM1.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/4BVgXFTskBlII2p45ZNsM1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf0aef0c72de8715a031119e721625adf3aa73ad4d5b1b15ceedce3a2c3dd71. 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/7LFoxlWRIS4Pzr15sSKFDL.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/7LFoxlWRIS4Pzr15sSKFDL.