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 0xf934817ee6e9a7b0f2e50b3f656e8e0f4187a29d8e4c7eb7e7e683ccf27830ab. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/493eabbd-49d6-4e96-8080-b42b9e5c3137.json and https://artists.proofprofile.net/proofs/artist/493eabbd-49d6-4e96-8080-b42b9e5c3137.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 0x3066b443926a72b57985c885da83b052c88c12ad325fa90d10a23ea0171b4452. 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/20yiP9nDV7tcDFQzzYQWAn.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/20yiP9nDV7tcDFQzzYQWAn.
Teenage Mutant Ninja Turtle (Bonus Track)
{"copyright_id":"0xb34275a4c9b7a7391cf857cedd606d07a7ad43373ca03bb3de0ef9e844b65b5a","isrc":"USE830921521","name":"Teenage Mutant Ninja Turtle (Bonus Track)","registered_at":"2026-06-21T07:32:36Z","spotify_id":"3RHf5ZjZ0guRjtl9bpg7bB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34275a4c9b7a7391cf857cedd606d07a7ad43373ca03bb3de0ef9e844b65b5a. 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/3RHf5ZjZ0guRjtl9bpg7bB.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/3RHf5ZjZ0guRjtl9bpg7bB.
BOCA 1997-1998: Best Of College A Cappella
No Strings Attached (Burbank High School)
BOCA Vol. 1&2: Best Of College A Cappella
University of Rochester Midnight Ramblers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc269329891bf56ba0038752341a95f941409fd8c6de149295a5b64656ea040f2. 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/0K3nSXrNmjy8Tnp6Z3uA9E.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/0K3nSXrNmjy8Tnp6Z3uA9E.
I Believe/When I Fall In Love It Will Be Forever
{"copyright_id":"0xc04aee0ed713d6ccca5eb66ea20e69665850838e16fa63ca61b74464a931133d","isrc":"USE830900720","name":"Put Your Records On","registered_at":"2026-06-22T10:44:50Z","spotify_id":"10SaAqewJirIer2tKV6ubN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04aee0ed713d6ccca5eb66ea20e69665850838e16fa63ca61b74464a931133d. 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/10SaAqewJirIer2tKV6ubN.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/10SaAqewJirIer2tKV6ubN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb7beea23d79ac43582fbc2fd0510787a0836ccaa21e6305fccc642a6c26da. 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/7LRWKRtImL5kcLHOZXOntp.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/7LRWKRtImL5kcLHOZXOntp.
{"copyright_id":"0x515cf3665deb2f0902d1d55abcad15fb5085674f5973fea9b6e88918fe23ef09","isrc":"USE830900679","name":"I'm In Love With A Girl","registered_at":"2026-06-25T09:50:56Z","spotify_id":"6L47Ah9izIwSHGkuUUSbMt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515cf3665deb2f0902d1d55abcad15fb5085674f5973fea9b6e88918fe23ef09. 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/6L47Ah9izIwSHGkuUUSbMt.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/6L47Ah9izIwSHGkuUUSbMt.
{"copyright_id":"0x9ccac906ad3a157fba01e844742a8f6c4beb73251bcbbe455ebbb62cfc1ea2f2","isrc":"USE830900687","name":"Lovestoned/Ya Ali","registered_at":"2026-06-27T10:32:37Z","spotify_id":"7iYnCOsB7AzLYu18yZogX5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccac906ad3a157fba01e844742a8f6c4beb73251bcbbe455ebbb62cfc1ea2f2. 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/7iYnCOsB7AzLYu18yZogX5.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/7iYnCOsB7AzLYu18yZogX5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a8ca036254962bb6816b2d36931f7f918b935c715377ba3af85c2781294d04. 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/4yKdLeIvXIJeLHuQuRsELo.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/4yKdLeIvXIJeLHuQuRsELo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bec825c3f70129b26c71d8b329bc834cc24a142ea43f4fcac08e442499cfe3c. 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/5WNYWFPP5njoMux5Hf2W4H.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/5WNYWFPP5njoMux5Hf2W4H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33602e0d0c22bbc5191a87ef360522d3e82979c14ab035d0319f24de0e7ce0a. 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/4rRVLDm51WBZfeFv7mLukS.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/4rRVLDm51WBZfeFv7mLukS.
{"copyright_id":"0x276ed7e6fa1e1f25cea220deaf9398cd5335f682ea8fc588e70c8e64404d1ab4","isrc":"USE831509308","name":"Ain't It Fun","registered_at":"2026-06-23T21:50:56Z","spotify_id":"6HiTZD07aPeFZTnQpxYocK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276ed7e6fa1e1f25cea220deaf9398cd5335f682ea8fc588e70c8e64404d1ab4. 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/6HiTZD07aPeFZTnQpxYocK.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/6HiTZD07aPeFZTnQpxYocK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315a9db9aff604e558a8af4646e1004cf94fd1245d5bdd342af493b61ca680f9. 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/5FHwGBN6xwvbHgMjdshZ8m.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/5FHwGBN6xwvbHgMjdshZ8m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d784a73f144128eed623198f92ca175d57aad358e700b1d90b182aca1fdaa6c. 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/7naZwgbQfb2HXedIWtJwd9.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/7naZwgbQfb2HXedIWtJwd9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2645bf07b601c970d622b5ee805b6a8325a0d5456c7c95c06a41b389a0d81520. 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/3toYDdOKTl5zqmzMcgRyHE.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/3toYDdOKTl5zqmzMcgRyHE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd821e999c0eee61f1c77d1f544aa200f26e256b975b6452121fe029abdd4663c. 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/5sCrcqn74sRGARWDwI4llo.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/5sCrcqn74sRGARWDwI4llo.
{"copyright_id":"0x97d6cb4e3d4bbff4a1a652b54f90d03b96859daff57b7b20e4651b61550d7274","isrc":"USE830901762","name":"Better Days/Where It's At","registered_at":"2026-06-26T11:07:10Z","spotify_id":"6Wc5s8CymE6mlJbpe8JeSh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d6cb4e3d4bbff4a1a652b54f90d03b96859daff57b7b20e4651b61550d7274. 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/6Wc5s8CymE6mlJbpe8JeSh.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/6Wc5s8CymE6mlJbpe8JeSh.
{"copyright_id":"0xeb47b9b8c8106067e38479a4dfc05be54778e8b75c466fc017b4d663fccca0c5","isrc":"USE830901764","name":"Everybody Wants to Rule the World","registered_at":"2026-06-19T20:20:10Z","spotify_id":"31h9BTC43g6Lr0vIYg1tHk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb47b9b8c8106067e38479a4dfc05be54778e8b75c466fc017b4d663fccca0c5. 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/31h9BTC43g6Lr0vIYg1tHk.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/31h9BTC43g6Lr0vIYg1tHk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c34a556f3c6f56ef2a9cf52ba6fc2c54e5f015b11b770fb609717a886a5701. 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/0eo7pYuYbdw7t6FL6eDIhU.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/0eo7pYuYbdw7t6FL6eDIhU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755f3e463103e224a7ae5b55f2ae90d3cda26f193b3483096e67357cfab9371. 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/743rkEoe1xnjVma4kJJ8xO.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/743rkEoe1xnjVma4kJJ8xO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667073b4d35fc36aef5f4422aef78f8898f731c1ec1374b40fdcca7fd5f5cd6f. 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/4ZAL3I66Ag8N13iTqAejWh.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/4ZAL3I66Ag8N13iTqAejWh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee049cbb620e095021bc90fea5156d739c3fd060f3db309fa9351974639fc803. 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/2EjZUiVyEobahPyK4oNE90.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/2EjZUiVyEobahPyK4oNE90.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda97bc19472978c160979f3b22e905b9c82b08f055f666337c008b542bc7c84. 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/2HlxSrgj3Tvq0vpTnWR353.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/2HlxSrgj3Tvq0vpTnWR353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f705340e370b512541944e044dd2ca920d3d850beb959b66163ebfc7733a178. 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/2yAUghGFRaZLyc0bjlCi4i.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/2yAUghGFRaZLyc0bjlCi4i.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0446abfdf399431fd779eac938f13594427ade1c7e4e554f9d93513379fd3da5. 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/3283PKoMxv9YGTbKiFqvU1.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/3283PKoMxv9YGTbKiFqvU1.
{"copyright_id":"0xafc6720168082d78cd41aca5ebd0a50c41b5ca2f48713fa0fc3c01a8ad9ec413","isrc":"USE830901808","name":"Sara Smile","registered_at":"2026-06-26T08:01:46Z","spotify_id":"0vHDdf9mmgCRrAzPggiOXl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc6720168082d78cd41aca5ebd0a50c41b5ca2f48713fa0fc3c01a8ad9ec413. 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/0vHDdf9mmgCRrAzPggiOXl.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/0vHDdf9mmgCRrAzPggiOXl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c0cff5400e60b3937fc2d92261740c3b30567d169cbc79ce4abad0b9985884. 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/2gz6bvFjXsPr3SWpWStBKR.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/2gz6bvFjXsPr3SWpWStBKR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11b44e7d93f70369b47f763c395be2d648040b89e85f7e1e841f831b1654067. 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/5H8R0llXeLDKXol9LHK1uD.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/5H8R0llXeLDKXol9LHK1uD.
{"copyright_id":"0xd896f4b516e0ae0dbbe1a380f685fc0236b7b9bbfc772abcaf233bccb7846d64","isrc":"USE830901801","name":"Right Round","registered_at":"2026-06-07T10:26:05Z","spotify_id":"71BJpAemt3UFE3jqQ2RZa4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896f4b516e0ae0dbbe1a380f685fc0236b7b9bbfc772abcaf233bccb7846d64. 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/71BJpAemt3UFE3jqQ2RZa4.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/71BJpAemt3UFE3jqQ2RZa4.
{"copyright_id":"0x89ec597fcc548ceae8b92603cb246e16e14cdcd322db0ffa350b30e906bd5ce3","isrc":"USE830901802","name":"Sweet Caroline","registered_at":"2026-06-07T04:24:07Z","spotify_id":"6d9F2YMOblua0s4DHc6h5X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ec597fcc548ceae8b92603cb246e16e14cdcd322db0ffa350b30e906bd5ce3. 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/6d9F2YMOblua0s4DHc6h5X.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/6d9F2YMOblua0s4DHc6h5X.
{"copyright_id":"0xb35afed98f2bfa4a9939e2db147666378aeccf64e10799ec6103bdb64ee352f5","isrc":"GBUM70711173","name":"I Thought It Was Over","registered_at":"2026-06-09T09:15:55Z","spotify_id":"3zF8TnEsl7p18VLOCH5Yog","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35afed98f2bfa4a9939e2db147666378aeccf64e10799ec6103bdb64ee352f5. 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/3zF8TnEsl7p18VLOCH5Yog.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/3zF8TnEsl7p18VLOCH5Yog.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e21a8f70c9b2270c6f619070cf88da36f5be09beb69815128bd4acd7020037. 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/0crtmLuKqfSFbKVicN4128.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/0crtmLuKqfSFbKVicN4128.
Video Killed The Radio Star - Live From The Hospital
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c53c6ad0661bf167a2563bf0d2b5a2b22be66c4bb3593f84302108bca22335. 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/00FTzJE3LGkNHE3yV9hmnC.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/00FTzJE3LGkNHE3yV9hmnC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ddc6a452863797b0b85fcaffa35d08681428b15dcb2bd6651f49f18f1a7cf. 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/1sVCMbS07Hd1fUhMaGOsRV.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/1sVCMbS07Hd1fUhMaGOsRV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052d7355204cb97021aede213b859195d148d8e91c026cd0086c81ddc0580759. 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/6UI3kZxO0i0V1Az0ClulbH.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/6UI3kZxO0i0V1Az0ClulbH.
Voices Only 2009 College A Cappella (Disc 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9681e07e3513952f29f6362c79eb6129e436e8ce91bb151b19c0b427ef7a61ca. 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/7bGqFqFT5bnFWUvwRpVhaD.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/7bGqFqFT5bnFWUvwRpVhaD.
University of Southern California Socal Vocals
University of North Carolina At Greensboro Spartones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7c151b018a9874b96a28951738129540027a235fb4612a2a1c226f1582ef5. 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/4wbVVwtkoPqRDZew3m6BXY.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/4wbVVwtkoPqRDZew3m6BXY.
University of Chicago Voices In Your Head
Voices Only 2010 College A Cappella (Disc 1)
University of North Carolina at Greensboro Sapphires
Rensselaer Polytechnic Institute The Rusty Pipes
Washington University in St. Louis Amateurs
University of North Carolina Clef Hangers
North Carolina State University Acappology
Uninhibited Praise of NC State University
Divisi (Central Connecticut State University)
Wolfgang (North Carolina State University)
That's The Way (I Like It)/Get Down Tonight
For The Widows In Paradise. For The Fatherless In Ypsilanti (bonus track)