Sharpie Smile is an American indie pop duo consisting of Dylan Hadley and Cole Berliner, formerly of the band Kamikaze Palm Tree. The duo are currently signed to Drag City. History Dylan Hadley and C
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 0x44324f6333f45adbefed13ded254dd966538ff75925cfbfbba5afde60cb4e0bb. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f54c99cb-5d6c-4df7-af4f-44d40492fe21.json and https://artists.proofprofile.net/proofs/artist/f54c99cb-5d6c-4df7-af4f-44d40492fe21.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 0x49a7792ce6a68338727e51cd075bc023ae50bb1dd9218eafe47db71852780839. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:59:04Z), 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/US58L2588905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e88111dc4e2bdcb676809f8b3149c3bd5cf7950787bc726af029275de81a24b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/US58L2588901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1339dae752243d566fb789b72ef8bbf30b4fa33103589fa507d6717378f92fc5. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/US58L2588902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acf2908e38d2c230d4825c3a34091afbfc88be0a455947991ae9ae02479e2f4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/US58L2588903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5c7725e12bdf77e5199acec37512f37e5e02afe64f08760cf7d38a4e6e7f56. 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/US58L2588904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a7792ce6a68338727e51cd075bc023ae50bb1dd9218eafe47db71852780839. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:16Z), 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/US58L2588905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b700c37e8b5070814728f166004245bef56d1600b6d58d6dccacd5204722dda. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/US58L2588906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d46f871f6b75ad4502f385ab70d7c1609ec2888df2833bbb0b2170c164b03. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:42:09Z), 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/US58L2588908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8373c7e81942b009c51090356f4f04d0eed85dba530f3120948018f05eba84. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US58L2588910.