Mischief Brew was an American folk punk band from Philadelphia consisting of vocalist and guitarist Erik Petersen, bassist Shawn St. Clair, and drummers Christopher Petersen and Christopher Kulp. The
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xcb8b7b99bf9145c125691c541cd1916ac581549b491db6dcdc0d89faf14ddbff. 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/4756dff7-d09d-44d0-adaa-813184d30a37.json and https://artists.proofprofile.net/proofs/artist/4756dff7-d09d-44d0-adaa-813184d30a37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0ee21dd48148efa9b8fb5f0be0eeb252af6ff5d6f6621b877e1627c2e8edd6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c8c8d9389ff074ad1938acc758b223f4997829b6ffd0462765bff799f9a12e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad75057e160f6919838272b23574692426f7967fac4490ffa5d0049d6a209c06. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cab540a0751c755de5e036cf27d4506d3b5a226e7da59e1b2ffcd4044dea922. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ece3ad12f236edb58f94a113e6cdcc73b2fa3e4b2a3ec8ae241edd1bd404d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311ccf65e9a142534d5d8d2331ae31f02484e03fb737b5562082af5dbddf9767. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60610013.
Boiling Breakfast Early: A Demo Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccc2ed14f7919fda6d1493795b46cb3938a9260c93109cab0755c76817fad88. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60810009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ad5e8ddbd8f740a33caf53bef4544013ad3ef1ead9bb725e9344aff0993123. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:44:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60810011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83611f60dca2ea0602672849a2c8849c44e94bf776e9262c3be71d1cb2916e85. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60810012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7efb800559c0803306ce00d7cc175bfcf68c6b285173397f3f50bb22cfd0c8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60810013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441f0daee1dbc310c458da36ff85934a868f299b02e7de66671c38275f3adb9e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:47:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW60810014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6647c03d0034d9a12c5af724371a8980be627ef05c04cf4530922ef86ab6c595. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb293abd4f2ba319a4c60c3e11a3990886cb9363d8d190d588e26d2c732fee4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce0e68bb9f245d30711aded76837d99bfc321a5255bcdc1568dab5da8494676. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6406a1285eeb93980fe32757c104544a72028461b9e0cd46dbe684c7f3ef39. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7a3576fb8dc5ddd287e2d61620b8419f1230707b751d1d1a47e2b68c9959c3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668226d5160148f0b03409a087014fcea75a364b5039bb3a89e049492cd9338. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7778cd3e4544b4afd0219241dc1d4df22adbbd082c40c00d6fc293c259a37b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e232293b3c8468e2e7bd56b4ceb414bfdf115d613c06ddf288fe574908d210. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3087615d0c52d3248f50d4e791b82ec68b9294bd05369404679672cb9697f3ff. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDW61200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8febd865ad7015972ddb32d78370c39cdf985876beeb0994ced95d986ee9c53d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEOV41300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ee293aea333d5b5d5d8f0145b748a4890a5b25cf90ca127b6b455db711ad4b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351409608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44894bfe53a951be54cde73f75bd8a6017c6e05a99e196e12ddef703272ddf. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351409609.
Art Of The Underground Single Series Volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2c8690daf91c2b0478a27161443e0197cee7cd3f34a6e6ee98eb67b60d9a6b. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU1840856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d216317b0101cb2af277a94919e52757878a0248a7579344b623ea876b6c9e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a3ff433986e0f3d86406895dd9cfda3a5b6db4e31ec5096c75a7678302cb08. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c8a0b0e1abeca7e0e58d39fc4239095e85841c5426bd8e241669b90e04a4ed. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2b66fa4b3d7310fa57be5ffac574b9a6093d9c158444a9ae4e9d6caac4452a. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2418772096e23ebf0fcc126e5d3be8b8a27b5e8f097d7347ea5d476ede2e666. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e2330949612546225a3350cfea27dd3d1fd138daa8f2c428ab7ef2eee1d06. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B21510063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa864e45d19d4c0d30d9f9d278c71871321200fce71848016882513571a9ea872. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61525902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a319f4721be7cdcc4d4afc03fa8e9239a827f3a6a3da699776d3c0e403821a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:37:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61525904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfefa45870e91f56cf769e56bf25a9f6a4f993e312bd6282c1dda189db61302. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61525906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6aa0c0a6e43b0fa309d13193bfd07d06b7879a3f9a11a3935670a1633c733cc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61525908.