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 0xb5cacb0606cc4f0c06f9986624d0b53aa2090b0716fab4d2dd61f5e36598cb88. 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/d3da1c3c-267e-422c-a67a-e19d659660b0.json and https://artists.proofprofile.net/proofs/artist/d3da1c3c-267e-422c-a67a-e19d659660b0.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 0x7facbf63d0ea1287b8b1145e54ce712fd6a447e13e0f00dc29b9af3103799fed. 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/14j5aZwADD9r72ozawpRxF.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/14j5aZwADD9r72ozawpRxF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65d8e019d848727141fe14b979cd28ee63b68793ec5c782db636eaea8446499. 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/0kRXVTVa2COWJrnhkHawXB.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/0kRXVTVa2COWJrnhkHawXB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b03369cfaf82dc809740a159061386b0f488ee9f59777b000e0456b4886f7f. 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/1UvJuDBVqQQwCyuNpO2p0U.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/1UvJuDBVqQQwCyuNpO2p0U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903dc976f5b5d4747d9ab730cfe5e8c97af820d033f9a7f11acf4c21b762459. 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/6dFVAGrNIfzE18Twl6oLyf.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/6dFVAGrNIfzE18Twl6oLyf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0758ff49cd034a4f6c54d80aa35f6197ebc75e3c07b51078e46d4cb6c34c3243. 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/4ksECTL0J2QSMs18UaaOBy.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/4ksECTL0J2QSMs18UaaOBy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2b9c4b101a81b7fb1923434f2133725c55617db34e29ddfcd47c5a50e3b7b3. 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/6VKjx5bXH9c18ArVr9p7tk.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/6VKjx5bXH9c18ArVr9p7tk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d356d7f280dcb825384af63d35b8baeab4a3a7e19a831e531d09d004cf5083. 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/4kYIw8DogEp77zKD5yT8pW.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/4kYIw8DogEp77zKD5yT8pW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb9d5e8fb9f002b16d518569b56168062411f99b48808bb9c3e618223b8aa3d. 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/5TvmmUX5vd8r2wjzMEYgI8.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/5TvmmUX5vd8r2wjzMEYgI8.
{"copyright_id":"0xa0d356d7f280dcb825384af63d35b8baeab4a3a7e19a831e531d09d004cf5083","isrc":"GB2LD2320304","name":"For Your Love","registered_at":"2026-06-05T12:24:26Z","spotify_id":"4hQbckRzUGFX1vVxyMMKkc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d356d7f280dcb825384af63d35b8baeab4a3a7e19a831e531d09d004cf5083. 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/4hQbckRzUGFX1vVxyMMKkc.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/4hQbckRzUGFX1vVxyMMKkc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad90f6c63cec05cb8ef40ecdb4855b2036940c6b28fe5357d7d478ee53e06c36. 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/5OzS0M1LaC1DMLIKg1xpPS.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/5OzS0M1LaC1DMLIKg1xpPS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad086b9d75df5372923c48cc284b51653d57fa3cdada1e8bcb6df482ac9608bb. 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/6UevgGtmZF3XTnOk2hpgz6.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/6UevgGtmZF3XTnOk2hpgz6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb9d5e8fb9f002b16d518569b56168062411f99b48808bb9c3e618223b8aa3d. 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/1lASXgo8hUMqSMZ2NbJJJy.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/1lASXgo8hUMqSMZ2NbJJJy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b03369cfaf82dc809740a159061386b0f488ee9f59777b000e0456b4886f7f. 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/4HFaRUXY6b4zJRnXqdMD5z.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/4HFaRUXY6b4zJRnXqdMD5z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb9d5e8fb9f002b16d518569b56168062411f99b48808bb9c3e618223b8aa3d. 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/4zzks3F2spEvpL7NrVShQb.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/4zzks3F2spEvpL7NrVShQb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b03369cfaf82dc809740a159061386b0f488ee9f59777b000e0456b4886f7f. 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/3AeEPdb9WKg7VWuwtXBOas.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/3AeEPdb9WKg7VWuwtXBOas.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313b7e3a371ac3ee3e0bb480841baa29ae1e30538650f513278f454f1193fcd2. 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/3QJtLGjQq9Ry9hSVsDLrIz.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/3QJtLGjQq9Ry9hSVsDLrIz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a318ce4fdc64c3f41c9ff45ac3d084f82cb892d3158f5e61d795f47777c5c95. 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/3LOzaH9xDCn4kilOtZiAm4.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/3LOzaH9xDCn4kilOtZiAm4.
{"copyright_id":"0xc9d8feb8b4eae5c595b22bfc59d0fc8272503f91df7a38e1684ebda26d842b32","isrc":"FRX202291202","name":"Loving Cause","registered_at":"2026-06-25T13:12:55Z","spotify_id":"1hIBkZNC0ooon5nHjcgzCv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d8feb8b4eae5c595b22bfc59d0fc8272503f91df7a38e1684ebda26d842b32. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1hIBkZNC0ooon5nHjcgzCv.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/1hIBkZNC0ooon5nHjcgzCv.
{"copyright_id":"0xc9cd60c23e8eb1a912b0d9f09b768e4c7b293337219833f34470c429ec6e93ce","isrc":"GB6TC2210102","name":"Ghost Mode - In: Most Remix","registered_at":"2026-06-23T09:32:40Z","spotify_id":"5Yt9uYuUQYZppFPel2Xiun","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cd60c23e8eb1a912b0d9f09b768e4c7b293337219833f34470c429ec6e93ce. 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/5Yt9uYuUQYZppFPel2Xiun.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/5Yt9uYuUQYZppFPel2Xiun.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd1aed92646bf38957c98602f3753a5e56ff576e68a35468457ee01a080b168. 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/5dlEb6A6LxmO9qVtBzjr0v.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/5dlEb6A6LxmO9qVtBzjr0v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a28f248aa4716376d778486e9a00df7f503808409c0353a30878ed68dbf46e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4eRapzclogWNWVmd79GqmI.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/4eRapzclogWNWVmd79GqmI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e374ea726c4dd713f4b2cb9c5edba1d5df7c32a1d1173cb266221f4daf808a3. 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/4PGiHolWSgCIT0BmpO2VA2.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/4PGiHolWSgCIT0BmpO2VA2.
{"copyright_id":"0xc610170c68c92161e9ce903eb418a613857e4df885b6c02fda5483b7becc372e","isrc":"GBXWN2100110","name":"Back In the Dayz","registered_at":"2026-06-04T11:38:50Z","spotify_id":"7Gfw0fTWsmPflnplixtkJ4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610170c68c92161e9ce903eb418a613857e4df885b6c02fda5483b7becc372e. 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/7Gfw0fTWsmPflnplixtkJ4.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/7Gfw0fTWsmPflnplixtkJ4.
{"copyright_id":"0xfe3596b4c9fa5cb1fc9ed2212329d9936a904a2b70dd25949eb8d1b0283e56a3","isrc":"QZMHK2068324","name":"Surface (BCee Remix)","registered_at":"2026-06-21T01:47:04Z","spotify_id":"3IadZw1aJAmluh1HIK0lhf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3596b4c9fa5cb1fc9ed2212329d9936a904a2b70dd25949eb8d1b0283e56a3. 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/3IadZw1aJAmluh1HIK0lhf.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/3IadZw1aJAmluh1HIK0lhf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da94c0410bab13dc4ee4dbd993459d52b0a0af752c039f671532e90ec32433. 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/41scpcxZZ8riNgfmgSohGE.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/41scpcxZZ8riNgfmgSohGE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9b4d9c6135452c2fcea6971a0fc0e62667495917357717c25afe9506a74cf8. 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/1MjeCJXRMSaUMZ0KLdsQDn.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/1MjeCJXRMSaUMZ0KLdsQDn.
{"copyright_id":"0xb5779e8644abbe8df236f29f164999d7e320c98c69cac48e59ae2efe16bc645b","isrc":"UKFJY1600002","name":"Touch - Tokyo Prose Remix","registered_at":"2026-06-06T04:49:24Z","spotify_id":"0YadJexZUo2SblfJE2ppZ0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5779e8644abbe8df236f29f164999d7e320c98c69cac48e59ae2efe16bc645b. 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/0YadJexZUo2SblfJE2ppZ0.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/0YadJexZUo2SblfJE2ppZ0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97af4e7d6cdd5bd9332a97b32e4a1fdd274fe200bbe2369f3f602eaa6bdce960. 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/2UdnKEXAXkfXkiXsw3NChl.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/2UdnKEXAXkfXkiXsw3NChl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6c7c6742491de0f75ed9d55ab1a20d1a9c73f30ec0c2065013885996728de3. 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/0PvdHWqMF6eXc2SPEc2j9H.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/0PvdHWqMF6eXc2SPEc2j9H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1009a09797c674ada5e0e4929c859fcb8cf2456ac103035ba96584d743be261. 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/48Q97uXgeU5uxGRl8YJoCK.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/48Q97uXgeU5uxGRl8YJoCK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434a86d018cafc6f75c82937a19634fd565c90b4b4a26d88c81d6f43b42d262e. 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/5ezWIpNsX82DNuzMm9pef7.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/5ezWIpNsX82DNuzMm9pef7.