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 0x0f0d9176c228d71013a580aa470f17c6d67c108c5ca108f50834998d22abba05. 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/e03b43f8-4874-4bff-b574-8b0cabe13aa0.json and https://artists.proofprofile.net/proofs/artist/e03b43f8-4874-4bff-b574-8b0cabe13aa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Little Night Music (Original Broadway Cast Recording)
Johanna (Act 2 Sequence) [2023 Broadway Cast Recording]
Johanna (Act 2 Sequence) - 2023 Broadway Cast Recording
{"copyright_id":"0xdf3ac6c7be97341aef4e2d7426218caec129f9ad976e0bfa796551911607fec5","isrc":"USRH12301824","name":"Johanna (Act 2 Sequence) - 2023 Broadway Cast Recording","registered_at":"2026-06-19T03:53:15Z","spotify_id":"5mSadfHPzvEPpzpfLEkHqQ","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 0xdf3ac6c7be97341aef4e2d7426218caec129f9ad976e0bfa796551911607fec5. 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/5mSadfHPzvEPpzpfLEkHqQ.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/5mSadfHPzvEPpzpfLEkHqQ.
{"copyright_id":"0xe4539afacec2a8dede8f8554c8f2d7594ffa239b28091f4af6a9d1d04f19f6f2","isrc":"USRH12301850","name":"Johanna (Act 2 Sequence) - 2023 Broadway Cast Recording","registered_at":"2026-06-05T12:17:58Z","spotify_id":"6XkY7xaHnpKUirsCJC2fk8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4539afacec2a8dede8f8554c8f2d7594ffa239b28091f4af6a9d1d04f19f6f2. 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/6XkY7xaHnpKUirsCJC2fk8.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/6XkY7xaHnpKUirsCJC2fk8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc8c7862500cb73c355ec9e0f5f7171d2572453291a95acaf307ede59faa11f. 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/02551EFieSMoojjDauMIh7.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/02551EFieSMoojjDauMIh7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59416627c2f06070d3ab7f29d4abc8d6c161646dbf7c978eb1a06e0aa014337. 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/4GDSnxxtmIyVS4Twl7Y7UB.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/4GDSnxxtmIyVS4Twl7Y7UB.
Into The Woods (2022 Broadway Cast Recording)
{"copyright_id":"0x5ca74ff6bf6e2ef7b8f52cff06fa233483f1597ddd5b33942ed5acebe129556b","isrc":"USC4R2224086","name":"Prologue: Into The Woods","registered_at":"2026-06-05T06:39:18Z","spotify_id":"5mJcu6XoLf0uiYMjpVL3hs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca74ff6bf6e2ef7b8f52cff06fa233483f1597ddd5b33942ed5acebe129556b. 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/5mJcu6XoLf0uiYMjpVL3hs.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/5mJcu6XoLf0uiYMjpVL3hs.
{"copyright_id":"0x41c16a0b3683f130a925b4a57bb5a858710c50b8a4a8e6c8e30b492c79110543","isrc":"USC4R2224087","name":"Cinderella At The Grave","registered_at":"2026-06-07T01:02:25Z","spotify_id":"1ETPMLWRvhx7hkjLrWiOGZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c16a0b3683f130a925b4a57bb5a858710c50b8a4a8e6c8e30b492c79110543. 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/1ETPMLWRvhx7hkjLrWiOGZ.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/1ETPMLWRvhx7hkjLrWiOGZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed6ad9563f82437bd21c4cb809b5b9e15d185b2d413172a089c081f0e7f9b03. 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/5VBIVIYFwusVUsI8S0Z1XV.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/5VBIVIYFwusVUsI8S0Z1XV.
{"copyright_id":"0xbd246eccfbdee920513ad36b4c62533770c26c552c38d96c263fc1cd32eca3e0","isrc":"USC4R2224089","name":"I Guess This Is Goodbye","registered_at":"2026-06-07T01:01:33Z","spotify_id":"73zyF7XyI6SLS1N0t31IIe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd246eccfbdee920513ad36b4c62533770c26c552c38d96c263fc1cd32eca3e0. 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/73zyF7XyI6SLS1N0t31IIe.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/73zyF7XyI6SLS1N0t31IIe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec5e6d1402f055363046c9c65141d3e633ef6df4ed163c99b43266ae5f18be. 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/6Aj19aOQntdfSpHDl9DxOw.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/6Aj19aOQntdfSpHDl9DxOw.
{"copyright_id":"0x84917f0e9694a4696c279f3acbdb9fe1242d468dbcf0e1e856b28f87c197d61c","isrc":"USC4R2224091","name":"I Know Things Now","registered_at":"2026-06-06T04:57:41Z","spotify_id":"7uBCj9LFwNq8cRboZHrk3F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84917f0e9694a4696c279f3acbdb9fe1242d468dbcf0e1e856b28f87c197d61c. 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/7uBCj9LFwNq8cRboZHrk3F.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/7uBCj9LFwNq8cRboZHrk3F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dff4c7dffe87678499b642a642b8808b489257e1f95336978659661ca7313. 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/4PhH061O95YrjW3V5QVAHq.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/4PhH061O95YrjW3V5QVAHq.
{"copyright_id":"0xd3d151914fa4924ff501c5b1b8bdbefaea0e4edd25235cb8ae445053f874531d","isrc":"USC4R2224093","name":"First Midnight","registered_at":"2026-06-06T17:36:22Z","spotify_id":"7DxgySQRd5CxuMH47vwjrj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d151914fa4924ff501c5b1b8bdbefaea0e4edd25235cb8ae445053f874531d. 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/7DxgySQRd5CxuMH47vwjrj.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/7DxgySQRd5CxuMH47vwjrj.
{"copyright_id":"0x660ba32ff784888fdf89b438c2796fdef36c8a9fbe1281a8480f04dcbf84fc6a","isrc":"USC4R2224094","name":"Giants In The Sky","registered_at":"2026-06-05T08:50:37Z","spotify_id":"3RDesmUopi3TgcFJdPAZnN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ba32ff784888fdf89b438c2796fdef36c8a9fbe1281a8480f04dcbf84fc6a. 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/3RDesmUopi3TgcFJdPAZnN.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/3RDesmUopi3TgcFJdPAZnN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780b0e4fe2db7926d754f1343d6e9cd6a1f29100a960501e24663d6789baae72. 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/1YAQhZFvl6agDLB707xpgt.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/1YAQhZFvl6agDLB707xpgt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae958c8472bd34507bf1adb9fe21361e1513e9a56af5495b449604b6cc5ee3. 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/1uIQH2US1mqUxz8SzHklUe.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/1uIQH2US1mqUxz8SzHklUe.
{"copyright_id":"0x9a507f39bd9a6e1f9d64792aa0df58accc13699e5c4884aef35bde5ff12fbae7","isrc":"USC4R2224097","name":"Second Midnight","registered_at":"2026-06-07T07:47:07Z","spotify_id":"5XwjElz3Voi6plWJQdzmiI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a507f39bd9a6e1f9d64792aa0df58accc13699e5c4884aef35bde5ff12fbae7. 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/5XwjElz3Voi6plWJQdzmiI.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/5XwjElz3Voi6plWJQdzmiI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655c913c16a04004dc5625832743ae708616da5fe61f9750ae7cc35b14ba243. 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/3Xq17yXcaTiP37qw6e3ILZ.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/3Xq17yXcaTiP37qw6e3ILZ.
{"copyright_id":"0x703429ea0834b1f9d142ae525c92e08fca9e5c31252efe18173e8747849e128c","isrc":"USC4R2224099","name":"On The Steps Of The Palace","registered_at":"2026-06-05T08:52:08Z","spotify_id":"7wDjnYTyZSKPwDAXZYUVYk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703429ea0834b1f9d142ae525c92e08fca9e5c31252efe18173e8747849e128c. 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/7wDjnYTyZSKPwDAXZYUVYk.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/7wDjnYTyZSKPwDAXZYUVYk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dc04a49860d0a98d4f15341af9351fe8553930d9ce78bf3521c35b356e9d42. 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/3AtlIGFsapBdp9H9BaX0bO.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/3AtlIGFsapBdp9H9BaX0bO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd5d097576e5b9e789485c7a1381f7188f1e37e79e9bfa28220f0e997ee51e. 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/4619FyGjyUZbFnpq2lZPGc.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/4619FyGjyUZbFnpq2lZPGc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45230924a958496e6136d417daf6c89fec5152800c4302d7c3a76609bd740294. 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/0xbeKWjWRbB73VGooPwLR4.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/0xbeKWjWRbB73VGooPwLR4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf3d48978fc50ef3b59c27024021cdb2c0f8f91f412f292ce4d67f9133033e. 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/1fAkFU6eNw8HFhS4qdIMOI.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/1fAkFU6eNw8HFhS4qdIMOI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7203f6960b1fbf5395b86f20370ff3798537ce1d15fcd44414534fce7459569. 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/4Q73f0GbaAin4maFqNxhK3.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/4Q73f0GbaAin4maFqNxhK3.
{"copyright_id":"0xdb49b5fe501afc934e11fdc7dd46e8a9a02307d01c0085bd5bbce6aba6b53d33","isrc":"USC4R2224105","name":"Moments In The Woods","registered_at":"2026-06-05T08:49:34Z","spotify_id":"5rUHTkUWnJ7M1l6glNkBJi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49b5fe501afc934e11fdc7dd46e8a9a02307d01c0085bd5bbce6aba6b53d33. 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/5rUHTkUWnJ7M1l6glNkBJi.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/5rUHTkUWnJ7M1l6glNkBJi.
{"copyright_id":"0xb9314fdf3b0bd2fa8aa6d0356da55e2afc4cacc113bba36639354f13a4b3930c","isrc":"USC4R2224106","name":"Your Fault","registered_at":"2026-06-04T14:56:41Z","spotify_id":"2p9Sbo8lKr0szosG5VAJhS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9314fdf3b0bd2fa8aa6d0356da55e2afc4cacc113bba36639354f13a4b3930c. 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/2p9Sbo8lKr0szosG5VAJhS.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/2p9Sbo8lKr0szosG5VAJhS.
{"copyright_id":"0xfbccdac08adc7786af3c1675abe77651d9d93110f7e7f96e99ea7ea895cd7833","isrc":"USC4R2224107","name":"Last Midnight","registered_at":"2026-06-05T08:51:13Z","spotify_id":"190CwRKLa5UIuTwv42AZfj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbccdac08adc7786af3c1675abe77651d9d93110f7e7f96e99ea7ea895cd7833. 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/190CwRKLa5UIuTwv42AZfj.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/190CwRKLa5UIuTwv42AZfj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba821a586b0ed86694a7e43cb545568596a4a5caeef55ae71ae96eb7224a3449. 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/36B0ZQvjKmjgMiTYSrunEh.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/36B0ZQvjKmjgMiTYSrunEh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5281f8141b743d75149f60c76aefc216e3ca6feaa25c5c1218e7fb7532f043. 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/43tLll1RT5mc77WOsMUfXv.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/43tLll1RT5mc77WOsMUfXv.
{"copyright_id":"0x596d0bf7a0dd1de1c8bd4cd6fd214600c2aec82f849e16de5d74a7d9027818d2","isrc":"USC4R2224110","name":"Finale: Children Will Listen","registered_at":"2026-06-05T21:46:24Z","spotify_id":"33b8xYBxKsGxOysTDYMylW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d0bf7a0dd1de1c8bd4cd6fd214600c2aec82f849e16de5d74a7d9027818d2. 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/33b8xYBxKsGxOysTDYMylW.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/33b8xYBxKsGxOysTDYMylW.
The Worst Pies in London (2023 Broadway Cast Recording)
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West Side Story Ensemble (Original Motion Picture Soundtrack)
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West Side Story (Original Broadway Cast): Act I: Tonight
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A Little Night Music: A Weekend in the Country
A Little Night Music Original Broadway Cast Ensemble
Original Broadway Cast of A Little Night Music
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A Little Night Music: Send in the Clowns
Comedy Tonight (From "A Funny Thing Happened on the Way to the Forum")
Original Broadway Cast of Pacific Overtures
Original Broadway Cast of Anyone Can Whistle
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Original Broadway Cast of Sweeney Todd: The Demon Barber of Fleet Street
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Do I Hear a Waltz Original Broadway Cast
Not a Day Goes By (From "Merrily We Roll Along") - Live
Company - Original Broadway Cast: Another Hundred People
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Sunday in the Park with George Original Broadway Cast Ensemble
Sunday in the Park with George Original Off-Broadway Cast
Company - Original Broadway Cast: The Ladies Who Lunch
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Company - Original Broadway Cast: Being Alive
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Original Broadway Cast of Into the Woods
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Sooner or Later (From "Dick Tracy") - Live
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West Side Story (Original Motion Picture Soundtrack)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eea696c4cf8abe4402447580bae9589b2e9e5205b60487f859b1f04a8e4b63. 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/6bddAJKVOcAwzrM2nAa03u.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/6bddAJKVOcAwzrM2nAa03u.
The Dance at the Gym: Cha-Cha, Meeting Scene, Jump
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e0d7c6cdec1782d540367fe2b794c6a16e0dc3f777b2a07281878e4ea0e32. 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/1zXisETAivJsmTBkhoqIej.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/1zXisETAivJsmTBkhoqIej.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8338dd49af85741cc705d839295014f6d2248d5e799ae8f4d1a5d458e560f69d. 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/7guz8LWGuiHSvp19OUxmbQ.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/7guz8LWGuiHSvp19OUxmbQ.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9c14c1d374b0c383ddb77882b89a440be87df9bcfaa0510345b6eeea6ec4c5. 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/4l8NO99Wd3Zxwn4RZXZhfO.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/4l8NO99Wd3Zxwn4RZXZhfO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d20225f03b7148b031f500ffa8c5b1d70366a79e226b6a6b86c5bc3c81ff31d. 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/04ob99pYFoFHIJB7TuI7sw.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/04ob99pYFoFHIJB7TuI7sw.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64c3f16d3e6bf1076546c421256cf33a7a4fc8c4962c62a0664d473605302e4. 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/6Jtl7l4GS0OxkDFACQjA5q.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/6Jtl7l4GS0OxkDFACQjA5q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43d4ff4bfb4f1b596d33183bd1925f2f19590932a0d72ebe57ebf7cf4338638. 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/6WbfBu06dfTcYdCRcbVmgb.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/6WbfBu06dfTcYdCRcbVmgb.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f82d10aa1dce8cd2ab453b11579a793dc49bdde90db531550d05388012882c. 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/20coq7NDoPC3ChiI3Mrl9K.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/20coq7NDoPC3ChiI3Mrl9K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93975dd81c1f5b0e961aeea71565e7d9956595cd39f66a40e7c27707c66d8b. 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/6wSLWZELUevZPdHZXGusy2.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/6wSLWZELUevZPdHZXGusy2.
"Late for Breakfast, Captain Bachetti..."
Transition ("All the Time I Watched from My Room...")
"Signora Fosca Has Taken a Turn for the Worse..."
Transition ("To Feel a Woman's Touch...")
"I Discovered This Letter at My Cousin's Bedside..."
Assassins (The 2022 Off-Broadway Cast Recording)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4049d52eca4945367238374ebd21913efacdc9b0f16eb0eb299ea99319cbe8. 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/5SuslkosTe9t754kmJAQCq.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/5SuslkosTe9t754kmJAQCq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839016fb35667f71e91685a9f3930a90af453579f38fc08b0e51f7b0db643393. 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/6cZSDa7ajwvDt3rv81sCDG.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/6cZSDa7ajwvDt3rv81sCDG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100c49eff491b74f8444382294daa822ae78c29b8fe4a6a1045eee869bc45150. 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/41DEk64PTKmG7ouhPh7sKl.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/41DEk64PTKmG7ouhPh7sKl.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d5b762d6865bb98d4d1c87285b9088c83653c7aeac71dec3efa05eaa6cd5e2. 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/0AwQg2HErxUnYHOjRVZ1fL.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/0AwQg2HErxUnYHOjRVZ1fL.
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The Frogs: Original Broadway Cast Recording
Invocation and Instructions to the Audience
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee2f0450f9c99cd512bb6e80c06f5f234b78f2e777d27abc97dfe6347e72fec. 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/5HgqRoICkVplnBrn0fSmSP.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/5HgqRoICkVplnBrn0fSmSP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e37900362689975a70d797463b009b1cae7a4fcd7b0a62467cee889c2c8ec3. 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/4uRbiSR27SdMbl2DYV1YTa.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/4uRbiSR27SdMbl2DYV1YTa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2467c8a4f3f030410995e7e9f4dd44c1b309dfbecf19572f7314bf995727b4. 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/4KJp3H3ZzaaxDSEwU0QcHa.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/4KJp3H3ZzaaxDSEwU0QcHa.
{"copyright_id":"0x839613afd4f4079d785ec7fa9acc6608d747ae69fc50aa1423b615af2efd7e8a","isrc":"USB960552510","name":"The Frogs","registered_at":"2026-06-24T14:13:22Z","spotify_id":"5JDwEWzEHjRpRDIgDKTL5I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839613afd4f4079d785ec7fa9acc6608d747ae69fc50aa1423b615af2efd7e8a. 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/5JDwEWzEHjRpRDIgDKTL5I.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/5JDwEWzEHjRpRDIgDKTL5I.
Merrily We Roll Along (The New Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a2ac16437a41a003e8eda9112993df16ca45b15054d36ccc58fddc7f15bb20. 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/6mrvgyhVWaGveX3shDSiBG.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/6mrvgyhVWaGveX3shDSiBG.
{"copyright_id":"0x0250eb799944666d10c879a9b4fdef7c6cde2c4d96d0ae64a7fbf6e926139178","isrc":"US3M59454802","name":"Merrily We Roll Along","registered_at":"2026-06-23T03:12:03Z","spotify_id":"5UehRYdlGuj6ATW9Htc6QW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0250eb799944666d10c879a9b4fdef7c6cde2c4d96d0ae64a7fbf6e926139178. 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/5UehRYdlGuj6ATW9Htc6QW.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/5UehRYdlGuj6ATW9Htc6QW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48eb38689f83f63df8744bd9850929533376151aea826a2e447ffe132554891. 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/5k4KIoKGWaQfbhEwXdtX0p.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/5k4KIoKGWaQfbhEwXdtX0p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cff3d9152fa2d693c425bb588164a7b5956b1b03bce3614441b880d32f2d23. 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/62aDDjfpvsBKP8kvY0QBTW.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/62aDDjfpvsBKP8kvY0QBTW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c7a2222908799c4bca83c3fe1d62f2a76458a8269b62c08c7a79da5f775cb7. 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/6OWLjpPL3zktTvWhQdda2b.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/6OWLjpPL3zktTvWhQdda2b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb039aec6740650aa5172fac4b3a572b126a514455fb3d7ee4600d903cd20a5. 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/6WLZg6vMGKjaFiyfm1OGI7.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/6WLZg6vMGKjaFiyfm1OGI7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163637f46ebd9094f131d463f58ae75d00f6c013f420d9a6fda27a52c4e02712. 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/3BLtLuScDqaCTATOQPJn4J.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/3BLtLuScDqaCTATOQPJn4J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82693daea15ff98ce5f6e6c3a1ed76dd266d0bc8217143ea90409e9ae8a1a755. 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/0bcA1IZymXnPaFDm2tNf3i.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/0bcA1IZymXnPaFDm2tNf3i.
West Side Story, Act 1: Maria from West Side Story - 1995 Remaster
David Holliday/Alyn Ainsworth & His Orchestra
{"copyright_id":"0x0f202cc5ef4faf959ceb0fe521d6041bb15debbddb8c5f1be5745e2c5cfc4281","isrc":"GBAYE9500292","name":"West Side Story, Act 1: Maria from West Side Story - 1995 Remaster","registered_at":"2026-06-25T16:37:09Z","spotify_id":"7B4ym3rJwbFg1S9JHVEOB5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f202cc5ef4faf959ceb0fe521d6041bb15debbddb8c5f1be5745e2c5cfc4281. 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/7B4ym3rJwbFg1S9JHVEOB5.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/7B4ym3rJwbFg1S9JHVEOB5.