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 0x21420a07aea55c7629f4c7926471b042104dcb6cb6109d8fedbcd30141747de1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6c91766-b06d-403c-bd1d-39e347c6e6a2.json and https://artists.proofprofile.net/proofs/artist/d6c91766-b06d-403c-bd1d-39e347c6e6a2.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 0xacfc69b8a98a2cb57c3d692aec97d462281d44690a1df4b852a180f8fe468ddf. 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/3A2jydab1iZJx90q3XKu9I.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/3A2jydab1iZJx90q3XKu9I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6c31057437ed8a76b82cd58d8d1fefa3a89fc6180d1b55651c107da973c894. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6tV3pIhXMfuiAoSzFnFrxx.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/6tV3pIhXMfuiAoSzFnFrxx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34484b64f368dcc48be68d641d81104d64d6a4df9e11f54532d5b65ae016fcd2. 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/6h6xlPBl51GnuYMFGzDhGX.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/6h6xlPBl51GnuYMFGzDhGX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a66edf441293e2813606d889eae59de2186caf9c7152afac7b7d5ec40331e4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EO344oCswOQkIk8XtvqH8.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/6EO344oCswOQkIk8XtvqH8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e221ef6c9e405de9c7f0da937a765dd2e28de02547e3dedefba5252cf266d42. 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/4yaP6H0Lu32i6pum97rVO3.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/4yaP6H0Lu32i6pum97rVO3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0ca8e6903ab0b13f4d727fb4349b8c95c3002c1fa08adcc71936ca5be62915. 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/5f7kgTBjSe01jcuvdh7vCl.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/5f7kgTBjSe01jcuvdh7vCl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbff80cd2e417097781b68f56f8151738606b0c0400533c8f07b4fd4ed7b19b. 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/4rt0E9gZS5wFE45cQsZ3bD.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/4rt0E9gZS5wFE45cQsZ3bD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa589a01fd5e64b7d40ff1a9077bc9c5c5f8a6da929bd15cd99e4931ecdf14a29. 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/3O4Ob0I9NbNpY8zm2cCrhi.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/3O4Ob0I9NbNpY8zm2cCrhi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950635cf0639238de26685d8c7b95531ab02f38c3fe993fae88d2816aedcf96c. 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/7ux3GlXHt3V9Y7N6lNN81H.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/7ux3GlXHt3V9Y7N6lNN81H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304f1825a23b9f610a5b962d466d0ea8f623681d5eaaacf544e3e77a283f6ea5. 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/2jGkOz4EV7RVO89mwBLbta.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/2jGkOz4EV7RVO89mwBLbta.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce9b769624e8322e708882a0159798ebdc735df341193e1fcc1cd6876b38036. 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/3cUVXXuRc3kGc6P1GYWL6M.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/3cUVXXuRc3kGc6P1GYWL6M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e7e4823b45312f22ec49b686b6f5a81eda11deb48246838db32f5f4e260352. 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/45nyNuyBg99Kvq8C0byKXx.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/45nyNuyBg99Kvq8C0byKXx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf038edd2484bd4bfd83b47565a7dc72ee811d09c4546573687682d5441a9e49f. 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/7utgFSlvsJbPHB4IaXEo3g.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/7utgFSlvsJbPHB4IaXEo3g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20e5ccdab08f6facf16ee4e767ed8b100f7cd9ea4f73ce69329dea5b05a1340. 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/4xT2CBBdNbx8AND7LHxAhX.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/4xT2CBBdNbx8AND7LHxAhX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8b4e4f94093bac06639f2127e3e1863cc6bf978fdbfbb05c3a9942dc451d7d. 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/6T5GzAsrxF412h8m0alEel.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/6T5GzAsrxF412h8m0alEel.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd313f57059edd93c6c4dc2e7c37b2992a95ab1eeecdaf722c900b3acc2a8877. 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/4aw5XZ3wy5OKfvWkl063HE.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/4aw5XZ3wy5OKfvWkl063HE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7283dcbcad1dd7c20109cea09dafce50eb13b45c06a5c07419fc7478a8955b. 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/2ncMtpCXT6g2SdZzFcXwIl.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/2ncMtpCXT6g2SdZzFcXwIl.