Dehd is an American three-piece indie rock band from Chicago formed in 2015. The band consists of members Emily Kempf (bass guitar, vocals), Jason Balla (guitar, vocals), and Eric McGrady (drums). Hi
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 0xecb96203c83bde85db327191e86aff078b2153fc34c3d5da32241a586a57a434. 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/abf6193f-15e4-4dfb-b687-a3cc09f47fd8.json and https://artists.proofprofile.net/proofs/artist/abf6193f-15e4-4dfb-b687-a3cc09f47fd8.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 0xb4b325b42175a25652208912f7f7fdb53353ec562aada70f23dcf4cac83258e9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USA2B1605586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0ba715de065cb6f9fb12943b79b73abc7a362b6962520016c82f38a4898ad8. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/USA2B1605587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e8bf62ead55ca1a9b1c7a0a33426f0cf3fa8254c6a050b13d6415a07327423. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US4NP1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584d46900817a45655cf4c9647c0959d9505b7cbe2c51fdb8d963fbafb63fd10. 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/US4NP1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78451289afa2a41f097de48b4c73697b97cbb8469772ce6ea46ed3f29bd9fd8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA2B1900381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c6a7a60c374a57ae251001fc30ab6d8b20227615b6645bbfe8b5afb44bfd5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USA2B1900383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ea04709ee3d655b1f89b9d85f3d2557f1dffc29cff9ecfa3ca52dc2a95506. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:34Z), 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/USA2B1900384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9da621aa633be9acee215ee82fc804786c1fae8430320a4e8a949159605f11. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USA2B1900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218eb250ffe5aa6d9e31f7938ce095b98b14461236de2f8f29a4b3f11383ea5e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:41:14Z), 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/USA2B1900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc7269f51af06d5169097e5ba09a9da1b37011871a7795e1ab352f7997f7e98. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USA2B1900388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624d23bb248dc47f4bbae995ed143468d9e696def293d703b9e448c83d251538. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA2B1900389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb9b74b05a7eaa7274bd2fe432ce7b8c6e878776eb44c1e82ba15775b495ba9. 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/USA2B1900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899c2db3b3009bb53e8d063e1a0d95053408a99716fc50998203fd1708b29d87. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USA2B2055291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146b6840fbf54c31c139a6f436ed91d0607bfe3333f7999b51649962006a83e4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2B2055282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68adbbcd5062070a198850e28882c3823b5be54c1f929eb3deda1a53a25fc77. 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/USA2B2055289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6900a0dd39dc6ce667e4f56ebdf9f8a9ddfc9a83479f4837d52e8214bc6078. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:17Z), 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/USA2B2055290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12481715b0f797b35fefb14188bad4f51f39fcb02d90361537fc0809484ba939. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA2B2101602.