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 0xdeee4aa2142cc7202c3ab24bb16f115e46c8d9d9c23d3d4282f361abfb42af5a. 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/f27885ee-3f3a-48e4-b3e0-849421d88068.json and https://artists.proofprofile.net/proofs/artist/f27885ee-3f3a-48e4-b3e0-849421d88068.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 0x0b128941ba3a396fc6ec5642a4b6fac8712e685d3e91c15e465a2b5cf895a04e. 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/7caux0meUWXshPqnB44got.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/7caux0meUWXshPqnB44got.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa430756f370f4fffc7154903e30a07e92f9638ce742e79426b5a3725b6abad8a. 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/34yIHHjyyPX007lMSpj7J1.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/34yIHHjyyPX007lMSpj7J1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b128941ba3a396fc6ec5642a4b6fac8712e685d3e91c15e465a2b5cf895a04e. 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/04g4813XfiSFRpfD1eo67d.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/04g4813XfiSFRpfD1eo67d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5edacb9fec9f3d0688b95a044b5374f51e1501b6250371bb68f7f39dde9447. 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/1MBq47XqJzhXAlMlmAbh24.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/1MBq47XqJzhXAlMlmAbh24.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0b884a5f3b0d8535d5dffd71c9a8f896787d0fe043988b20bb20c16bedbd7d. 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/02r0bSYGFbyE3DMWnUbS72.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/02r0bSYGFbyE3DMWnUbS72.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd974d7ee3335414f82962e4b4c6fab8527ec78bfc16a10a93694dcc37abc4d. 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/46CRoA0u4EhClL9oK9Sy2P.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/46CRoA0u4EhClL9oK9Sy2P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278639b83974c711ad3a73cfbddba3af945a5d065768f8cf5e2d5f0fc7741b0f. 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/2oy566urW1o7OFeXiN5CUA.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/2oy566urW1o7OFeXiN5CUA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1376d027f8f3130f387e0163ca5c53c9b49cf3d92f860eb0d7366f2d6efc1031. 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/1bRh7CHpJaB30NKv6GXcHg.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/1bRh7CHpJaB30NKv6GXcHg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491cefc4abbbdf87a948001e9f560537ac469891a53a312b5dde5bf4eb819737. 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/2de6a4QUAwvZDraNErAKiQ.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/2de6a4QUAwvZDraNErAKiQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b2841116451248ad9a70e748cf3414d1164868f13121a5b42d1759c2fa2286. 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/20OIaE48mhpQ64KOqJH1s9.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/20OIaE48mhpQ64KOqJH1s9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8fa441f1d8279236efaabb1d3e6bac6971b2abe3ad95f8c9230fdab61c050f. 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/0RyzTAxe8qyeGMiQgAWDI0.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/0RyzTAxe8qyeGMiQgAWDI0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3655f22196640741c30402fc48de0c595c750b7d2ef45d0a6359ab290508ced. 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/0UqZmXqdI2Whbafj28Wqdr.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/0UqZmXqdI2Whbafj28Wqdr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf148d658d1d19d145e11c638832884a8d76232104526dec6f89e233bf887ad05. 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/1gpILkbKweZCqMCdX8bsvL.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/1gpILkbKweZCqMCdX8bsvL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278639b83974c711ad3a73cfbddba3af945a5d065768f8cf5e2d5f0fc7741b0f. 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/2n9mhw8QD22FClNn9ye03T.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/2n9mhw8QD22FClNn9ye03T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa430756f370f4fffc7154903e30a07e92f9638ce742e79426b5a3725b6abad8a. 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/2yBaXxHBxNjWk4xCmM3Dh7.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/2yBaXxHBxNjWk4xCmM3Dh7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f4ded632636800273ae7112cbcc63316915764c4615836f3d5cbccb3a903e8. 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/6reIioBTYw7UIskhcQ2Biw.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/6reIioBTYw7UIskhcQ2Biw.