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 0xe613b2d829c22e2d3c5730079aa9accc163e9c338f98f4fb723d0111b4fcb460. 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/6e064abe-70ab-419b-b566-706ac235bb53.json and https://artists.proofprofile.net/proofs/artist/6e064abe-70ab-419b-b566-706ac235bb53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc166a0c4908a0fb986406123a995786420fca45e054dabe0b9efa2fc3b54764e","isrc":"QZHNA1916882","name":"If They Knew the Facts","registered_at":"2026-06-20T21:58:40Z","spotify_id":"6iMAOq1dv7ndk3YJAw2kbV","type":"track"}
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 0xc166a0c4908a0fb986406123a995786420fca45e054dabe0b9efa2fc3b54764e. 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/6iMAOq1dv7ndk3YJAw2kbV.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/6iMAOq1dv7ndk3YJAw2kbV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f3656d61fa11e6d79311ab24a37f18bad2193666c94853863fb2565908f697. 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/2WLcdfnWYF1x61KGMaSkOn.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/2WLcdfnWYF1x61KGMaSkOn.
{"copyright_id":"0x0d6292c89e532b957df6ab84b107d46c6d887691dfeab477b9b15973c691d87d","isrc":"QZHNA1916884","name":"Fashion Week","registered_at":"2026-06-24T23:11:53Z","spotify_id":"4bC0NSLYorXlmVtogKCZlE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6292c89e532b957df6ab84b107d46c6d887691dfeab477b9b15973c691d87d. 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/4bC0NSLYorXlmVtogKCZlE.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/4bC0NSLYorXlmVtogKCZlE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd12744bc2f40baa814f2bd2ca07115774dda2539416f0070972dd7e10a7ab6b. 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/1BZCO78Pii0I0q5gVqYMFI.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/1BZCO78Pii0I0q5gVqYMFI.
{"copyright_id":"0xadc4ea5de69cd1845fc37f23a1488244a9e8eb2e7b8698d712656af06a211634","isrc":"QZHNA1916886","name":"You Got the Juice Now","registered_at":"2026-06-25T16:22:12Z","spotify_id":"2u14fUIkNyVaZRG6MCUWJ1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc4ea5de69cd1845fc37f23a1488244a9e8eb2e7b8698d712656af06a211634. 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/2u14fUIkNyVaZRG6MCUWJ1.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/2u14fUIkNyVaZRG6MCUWJ1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d0bf740e5b8f083937ca95c62743e2ccae03c5a73e21d7fd422c1b75c507b. 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/7cFaKJVnPPq7xPkMJ8e0qW.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/7cFaKJVnPPq7xPkMJ8e0qW.
{"copyright_id":"0xfa63580b9a1d22b56ae286a5fc58a24dccae2c40ce9c50b995070b1a199977fd","isrc":"USUYG1507957","name":"DOTTED LINE (feat. Veeze)","registered_at":"2026-06-06T23:07:29Z","spotify_id":"5KMEGEPGor1F57Aohyrbnz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa63580b9a1d22b56ae286a5fc58a24dccae2c40ce9c50b995070b1a199977fd. 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/5KMEGEPGor1F57Aohyrbnz.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/5KMEGEPGor1F57Aohyrbnz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104eb88cfbe5d15f2d7e473563a1da24ea4842e84b9219b25da34336b17a25b2. 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/5aLlafW1MO5qqeze4YfwSO.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/5aLlafW1MO5qqeze4YfwSO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad904ff78a55cba228810430495cac5fba31356e4d89e436ba118b4c6da7cc28. 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/42CX9NFPZvBF8WUyznBgOt.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/42CX9NFPZvBF8WUyznBgOt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029162564ab1a5a9f60f15a2e2802a1190f2bbf729a13190900e914be3bf3b21. 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/0DdVglwXRI3BrYOAGcQbSD.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/0DdVglwXRI3BrYOAGcQbSD.
{"copyright_id":"0x104eb88cfbe5d15f2d7e473563a1da24ea4842e84b9219b25da34336b17a25b2","isrc":"USUYG1551931","name":"LIFE GETS HARD","registered_at":"2026-06-11T05:15:51Z","spotify_id":"5FqFVLWS2iDdrrwgzJCxOi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104eb88cfbe5d15f2d7e473563a1da24ea4842e84b9219b25da34336b17a25b2. 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/5FqFVLWS2iDdrrwgzJCxOi.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/5FqFVLWS2iDdrrwgzJCxOi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f815b81c6e1729a2550782b7aae98f67ec5c76abb845311372ff70cd3021595. 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/54SRqRAeC5bGZjaWHrbEws.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/54SRqRAeC5bGZjaWHrbEws.
{"copyright_id":"0x5da290ba16a959c2bc1a71766263288780c3cd3caea67f6d8cf9e94e8933168f","isrc":"USUYG1507947","name":"I CHANGED MY MIND","registered_at":"2026-06-20T02:14:36Z","spotify_id":"58iDmpb1UJRvPtTMrgspcm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da290ba16a959c2bc1a71766263288780c3cd3caea67f6d8cf9e94e8933168f. 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/58iDmpb1UJRvPtTMrgspcm.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/58iDmpb1UJRvPtTMrgspcm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e472938e542bcd2e581addbb767832fa56975c77ca4783131d405e3a9eb589. 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/4Y6lPK2M5oDpa9HBTOBlry.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/4Y6lPK2M5oDpa9HBTOBlry.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbaffa42c9057da9b7c4249d1a1ce0b43f92d47a6347db9f572267a7262186b. 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/0LDkKGnQ0A4cldG1GCUgMA.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/0LDkKGnQ0A4cldG1GCUgMA.
{"copyright_id":"0xfa63580b9a1d22b56ae286a5fc58a24dccae2c40ce9c50b995070b1a199977fd","isrc":"USUYG1507957","name":"DOTTED LINE (feat. Veeze)","registered_at":"2026-06-06T23:07:29Z","spotify_id":"7G46cqvcWy3fJng2zCFMlp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa63580b9a1d22b56ae286a5fc58a24dccae2c40ce9c50b995070b1a199977fd. 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/7G46cqvcWy3fJng2zCFMlp.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/7G46cqvcWy3fJng2zCFMlp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95a38f9f290da1ad1e183f540f2227cb9bb0d1bcf25fd6bf72c616eb8802730. 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/0IodIg2Q6gxc3bdYDVzyEn.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/0IodIg2Q6gxc3bdYDVzyEn.
Samuel Shabazz MuzzleGang Tay and Nino Nix
Suit Yourself (Dreams in Reality Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad904ff78a55cba228810430495cac5fba31356e4d89e436ba118b4c6da7cc28. 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/73Xzw4yT7kNPUB8S62emke.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/73Xzw4yT7kNPUB8S62emke.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f815b81c6e1729a2550782b7aae98f67ec5c76abb845311372ff70cd3021595. 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/70skg7Mle4AjcdWiVFZMvn.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/70skg7Mle4AjcdWiVFZMvn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37e39ed6bf07e8a6e596e0262a8e6c7898fea76a23c7196f64ebc5915b8703b. 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/0nB2BGBQt0WhS0OIGQ7Bn6.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/0nB2BGBQt0WhS0OIGQ7Bn6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d625347b1b05252be561e96f14f0e3231072b641e95dd1314c34671f7e74c9. 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/26OCZ19HnW02nJKEvYZX8x.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/26OCZ19HnW02nJKEvYZX8x.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a18f40635ebaaf7e5a25852b2e9a86ba060059f811a02537b4c25193048939. 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/5fPdvGTimJkYRAtWo2SP4s.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/5fPdvGTimJkYRAtWo2SP4s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eb833b1b1985e66aa094f95e71784432665816a13a7f39173b9e32823de525. 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/7HLuf1vPVNLYU3jVTfepi8.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/7HLuf1vPVNLYU3jVTfepi8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6a523c282eb4044c3e1f9f295a66dba68cf3b6be32a6276683225cb1a9e11a. 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/4LyaEijQ32g3dybHF4MFNh.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/4LyaEijQ32g3dybHF4MFNh.
{"copyright_id":"0x37e36a137cc0a9c901333c7910ed635a83d02027280e60af0ce70a8fdbba25bc","isrc":"QZNMX2546881","name":"Bedside Baptist","registered_at":"2026-06-24T05:06:10Z","spotify_id":"6Ynef2RjOLUi44jTByAvQn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e36a137cc0a9c901333c7910ed635a83d02027280e60af0ce70a8fdbba25bc. 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/6Ynef2RjOLUi44jTByAvQn.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/6Ynef2RjOLUi44jTByAvQn.
{"copyright_id":"0xa43ba9caf467200aa3de45bb6a717334b3bc3088869850fcc9dc1152a2fc3fef","isrc":"QZNMX2546882","name":"Miss Gladys","registered_at":"2026-06-24T05:07:52Z","spotify_id":"5NFcEcOFngXNgGoEznxJhP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ba9caf467200aa3de45bb6a717334b3bc3088869850fcc9dc1152a2fc3fef. 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/5NFcEcOFngXNgGoEznxJhP.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/5NFcEcOFngXNgGoEznxJhP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f060425d17974bb646c19b346e47e26126636aea08109ce8c90174a67a4c49. 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/66MH0CSosreFrSm15beC34.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/66MH0CSosreFrSm15beC34.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12557be44175c4a0b8dac6bf226332b1d603684e863853929eb376f4bf8ac3cc. 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/2245ZP83JJACuoxHLDjJhq.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/2245ZP83JJACuoxHLDjJhq.
Wavy Gang Immortal (feat. Samuel Shabazz & King Hendrick$)
{"copyright_id":"0xcac97baef7b8822ce632b89d06df7b8944858545da62d8e2345f8ad1c469612f","isrc":"USUYG1447998","name":"Wavy Gang Immortal (feat. Samuel Shabazz & King Hendrick$)","registered_at":"2026-06-07T05:37:07Z","spotify_id":"4QtGWfGcgDzstaqapVcxL4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac97baef7b8822ce632b89d06df7b8944858545da62d8e2345f8ad1c469612f. 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/4QtGWfGcgDzstaqapVcxL4.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/4QtGWfGcgDzstaqapVcxL4.