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 0xa393218390a90eb54c8298c7a8f5c0a7932b0c150d65acf903e9f7f0422360c1. 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/552b229b-42e2-4258-9c55-ea6ae52248b3.json and https://artists.proofprofile.net/proofs/artist/552b229b-42e2-4258-9c55-ea6ae52248b3.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 0xee3cd6c386c8328d7065408b21097bc418ef24af37fc84a0847d807c30ddb390. 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/0RdxLR3pPQ6VcUmyWrJkdE.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/0RdxLR3pPQ6VcUmyWrJkdE.
最远的你是我最近的爱 - Dj辉总版伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e9c8293b5c88b6b3d46ca5fc52c71f8687c96bd4526925ebb6e5cf7a9b825c. 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/3fdPWFOnPp82IIHvNPl6IJ.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/3fdPWFOnPp82IIHvNPl6IJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc116d71833eeba2ab83e3e81679f24cd45e76013653df3518a332ff654fc86. 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/05o9RSo0xYVVwCptyuPkRI.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/05o9RSo0xYVVwCptyuPkRI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b451be1cb2e0a85950a7105f8fc823bf291fccba067d1020d104d80a81374b. 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/6LE7pFXBQZZGdJB0d8HjZM.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/6LE7pFXBQZZGdJB0d8HjZM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc175c9d627223203b791b2480d10385a6d6a2f27a1b39e6e964460ae2c9dd6d9. 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/0Q1kSA3BQVC4AcFkk80LwF.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/0Q1kSA3BQVC4AcFkk80LwF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b8898849c65f966d30b38307edc1a6e7009c3e8e5e11fc48b2cf3c507157f9. 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/28fSmOdwE0OW8uDxWlauQ9.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/28fSmOdwE0OW8uDxWlauQ9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2f1082705f8536bdfd4c8dfdf95030eae5dfd44dcdf3cc82fb17e6b450a287. 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/7lCFawL7TkR1BqKCIn9FvC.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/7lCFawL7TkR1BqKCIn9FvC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df584ccdfc14477906613470feb47c587a4cbf2b86fd8f500999682ddc5021a. 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/0PstP0QvOPXaCPWZv8ORQY.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/0PstP0QvOPXaCPWZv8ORQY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aae8d8a898e01a4a2fbd484d07c2bbbd66721e1e599ded8f7d363059c908e62. 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/2XLBaZUN2HH6DyRAHNyuy6.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/2XLBaZUN2HH6DyRAHNyuy6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1f9ce067e2654d5241ef9edb6048b4964c52a13ffde377553ec97ee61edafa. 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/5eDFmm6usH5BhqeLfppjMV.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/5eDFmm6usH5BhqeLfppjMV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491c592b88f20fc7b47e00d8fd16611b0ce2229b49e74acef467a54794c242b. 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/1HBPSwfSpPlHYfD67cNLBc.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/1HBPSwfSpPlHYfD67cNLBc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8db76285528d86a9375fc1206c021a3e7ef57eb81c4e277f577ef41a4469c22. 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/0OdY18g9TnEinDozxvQaAZ.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/0OdY18g9TnEinDozxvQaAZ.