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 0x78c31c33f63ba3c2d5f792717b7e50074b55263289fe466953cee00d0a72cf3d. 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/306c8165-d331-4467-80a2-b5481277ddcf.json and https://artists.proofprofile.net/proofs/artist/306c8165-d331-4467-80a2-b5481277ddcf.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 0x8f46c77a299a603d3dcc9c1b55c5f98ec9b9ae2447582ea476ff4067b7da3238. 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/5XeLWMOWG31EweovTyL7qB.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/5XeLWMOWG31EweovTyL7qB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059c643d489ba3cc50ac8a10c766727c2aab4c7f42748976e95021c48fb73b73. 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/0PlCJXIPscHbFLqSicHfcV.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/0PlCJXIPscHbFLqSicHfcV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b25ef0ddc299dcbcd76b521944af234313a0b00fc8020b51652e75d19175052. 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/02d1a5HsQRacqovjOAnRE5.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/02d1a5HsQRacqovjOAnRE5.
{"copyright_id":"0x16ff4d4b207b85bb43e4f6fc4844e70c610577015ae5e2f5c921f5b85a2b2525","isrc":"GBKQU2015039","name":"Tekno Brasster","registered_at":"2026-06-19T10:25:32Z","spotify_id":"6zuR6dzRVeLwcaU9KhhNem","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ff4d4b207b85bb43e4f6fc4844e70c610577015ae5e2f5c921f5b85a2b2525. 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/6zuR6dzRVeLwcaU9KhhNem.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/6zuR6dzRVeLwcaU9KhhNem.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a8b0458ee7365d34e0b8f8e5c255be99effb338c817ffe3fb2dcd72e6bbfc. 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/5iMaxQ9McuRdsn052YoAt7.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/5iMaxQ9McuRdsn052YoAt7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ee54ec2ff2b90ad7aff190fdd0e890c3cad0507e0c784e83486d9d3809506c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5s4aSjpvs2nnv8sro90mhQ.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/5s4aSjpvs2nnv8sro90mhQ.
PRSPCT presents: The Nightmare That Is Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b1ead22b975bc77d0a75f68589bedf0528076092d853309786047b8689981b. 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/7IXjJZ17LWrB9FN2HUBTZ5.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/7IXjJZ17LWrB9FN2HUBTZ5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa376c750f893e332939951982335c8120b7909639e3212f3da9217b8af71df1. 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/4crKRbE3uHyJWbuL42B06l.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/4crKRbE3uHyJWbuL42B06l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ee54ec2ff2b90ad7aff190fdd0e890c3cad0507e0c784e83486d9d3809506c. 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/5CRhJKmP5rDYWf6xNuC0hO.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/5CRhJKmP5rDYWf6xNuC0hO.