Larry and His Flask is a self-styled "Post-American rock band from Bend", a city on the Deschutes River in Oregon. They have supported several bands such as Frank Turner, Dropkick Murphys, Streetlight
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 0x98c2069769a4971bb04cdc54beb1c9e3228ae807719c89485855d45bf0f3a151. 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/1226e8fd-e646-4402-9864-a2aa77856051.json and https://artists.proofprofile.net/proofs/artist/1226e8fd-e646-4402-9864-a2aa77856051.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 0x769bff3e2c53a356c32a0a1b2a9c05de70a7a2340897260cace3d8daac56d062. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USGCV1018993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824dca50c7c28505ccd873023ebc72359e3d680497cb2942825dce4a298f1fc2. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USGCV1018994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cfe854306a0e780ad6c25b12a36a250e0a7b3c3a87700b0bfdedc7ebe1dff6. 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/USGCV1018995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e71ede3d759254d0288c3f19ef93009131b7494d1a057e170cfc5dde3ded4a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US2H41100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec92764082582a615a863f659fb692d4f65ab5d09a4a9009a2b280194d7415a. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/US2H41100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea349a22d715cfeb61a99556a5fcdb03cc68c67bea13b010bb2c82c988ac6e4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/US2H41100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28f6fe26187f393dcbca3a91a5102e57f425d40fdf76a4072e658998ad551d5. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US2H41100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f2a744276fca73aeaaab72c35f117954d2b2cd0610cb017cd3a834fc076856. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US2H41100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fd9ecea0a8633b28f5846a6e61313f93c595bf8b4825b9f85ebf7ffd27661e. 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/US2H41100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e71ede3d759254d0288c3f19ef93009131b7494d1a057e170cfc5dde3ded4a. 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/US2H41100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec92764082582a615a863f659fb692d4f65ab5d09a4a9009a2b280194d7415a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US2H41100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea349a22d715cfeb61a99556a5fcdb03cc68c67bea13b010bb2c82c988ac6e4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US2H41100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68bccbbba35aba5bd9a955e45d359836e9634ef6a6fb44bbed43577bd51326b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/US2H41100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d901c3b2befc0a1252d63d75cd05c75132871cd320f36e1b68d7629665a25. 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/US2H41100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28f6fe26187f393dcbca3a91a5102e57f425d40fdf76a4072e658998ad551d5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US2H41100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f2a744276fca73aeaaab72c35f117954d2b2cd0610cb017cd3a834fc076856. 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/US2H41100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fd9ecea0a8633b28f5846a6e61313f93c595bf8b4825b9f85ebf7ffd27661e. 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/US2H41100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940210cf8f3e5f7a0845de21bb89b781b9a06a8d8fe5f50c401ea66f3c1c7c13. 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/USAAT1200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d1458908c5f46964db703291d021c32fbfc5d84b09aab860e8071cf8243a77. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:45Z), 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/USAAT1200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f03c4f36cd8b69b8abd974eaba2442b6fbdf24ae1d8621696b6ec86dd5b0480. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:55:12Z), 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/GBHAH1300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d851998fe8f82d5da373c7c3cc66d935444f6d457b35e8a28b5823548544efb. 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/USV351344040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4e251fe08e356e6d9d4d0457bcabfd2016b9e13b426a6bb745d6dbaed34006. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/USV351344042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00f94b304279835f4ac5a905342a2fa8fe0f653d6e8b3d8e921c8f2f5cf65cb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USV351344045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51e4ea2bd2bfe476ff9a327e28407df7d3f00181830cbebafdeeeb996af1d52. 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/USV351344046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8309e676774c6f3498fddb4ac0d51ac81eb82814bd3126ad42d780c0a73323e. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GBHAH1800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c6757afb5bbc9149c5dedf36fbe607dd8e5b79d08f6ee043883f573e4d74b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBHAH1800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e55227fe858ca9096e917c823e133e6d42a780adc7f90fa27eb497172e752c9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:35:18Z), 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/GBHAH1900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61f9cdcc6f9f36d400fafc5e6a1cb936922881d50814d9f95ab7af9b09c8b02. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBHAH1900065.