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 0x65a944a504525aa212a6eef44a777bbe59ab2e7bb9be1649f60f7fd852099a9b. 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/244c79e7-6a70-47d9-9576-99119774ad18.json and https://artists.proofprofile.net/proofs/artist/244c79e7-6a70-47d9-9576-99119774ad18.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 0xbed6362eb9b31273b27c8915cbb026afd96ce5153f0e1d65a01618b554b04715. 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/03b5E9kXzlk5rFlyaWvXlF.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/03b5E9kXzlk5rFlyaWvXlF.
Brotherhood - Featuring Prince Markie Dee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a85071fec87dd74a41997f8c6024308494698c5a3bd97f948f865f66116093d. 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/2hzXr8TJbQ1mltzuswDtUi.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/2hzXr8TJbQ1mltzuswDtUi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. 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/2BSt27MzeOJH13Y9k6N4e8.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/2BSt27MzeOJH13Y9k6N4e8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. 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/4LhiRcLqXfC80uhCFnzxWS.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/4LhiRcLqXfC80uhCFnzxWS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1XSuthwZHNo3vsOUWppVLK.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/1XSuthwZHNo3vsOUWppVLK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Orj2c6kAPSvwl2cxK4gVJ.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/6Orj2c6kAPSvwl2cxK4gVJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. 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/2GApAxyqo4YzP48rWLveQO.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/2GApAxyqo4YzP48rWLveQO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d565f71ab48f6a6cdf76c5f0755ba0a060bac4b6ec0113bdc4550cd25631cd5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/58WR4vNkvvHARtyCP5Gj6O.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/58WR4vNkvvHARtyCP5Gj6O.
FREE WILLY - ORIGINAL MOTION PICTURE SOUNDTRACK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75447a96f3676c557f57b72b20c6de4e742d338bd0566896529cb9b102286afe. 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/2ibXNuj2s05wzKBhVJWxWV.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/2ibXNuj2s05wzKBhVJWxWV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cabd9372e048452681a40547f947333c950a4af7b728893994dd1f8104f0dea. 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/4Ug82yF3Dik7vKK1PsJurt.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/4Ug82yF3Dik7vKK1PsJurt.
Free Willy 2: The Adventure Home (Original Motion Picture Soundtrack)