Dobro () is an American brand of resonator guitars owned by Gibson and manufactured by its subsidiary Epiphone. The term "dobro" is also used as a generic term for any wood-bodied, single-cone resonat
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7234d7ee8f876d435a4ab1d7e203ac5aba5d4ae10b97dc02eb4c9dbb1ce168c. 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/589c6b86-e8ac-4a9a-8c9c-d0d31e52b959.json and https://artists.proofprofile.net/proofs/artist/589c6b86-e8ac-4a9a-8c9c-d0d31e52b959.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b77bd99f05efe4377aedbae3f13accf411805c51ec9baa49c82dd78b8e8a752. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZNWW2283676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d45338baa5cbc67238e941383c6db20c782762472fcb4a59d302f5290a0d6e. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US39N2205294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe000287e3270fdfe8f8eeec8908a0d76a8e0215205b7f580865faf7dcbefadec. 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/US39N2300825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08bb8a0e3500edff570bd7a0a63e0e854a29b4d4606151d3a9af805a7620f15. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/US39N2304449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc03d1564763a6e78236028d0d2d515a11a6a9ac8d4e224cc7b1265da229b20. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZK6F2331969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08bb8a0e3500edff570bd7a0a63e0e854a29b4d4606151d3a9af805a7620f15. 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/US39N2304449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca64fe96216660444f8217faef0e2f68843e0a2e31156a463d5d3cb0ef4b8dd. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US39N2310804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87f44c8f84e715c8ec4cab0ca7bd3a4002787348505b52c3cfd38139c1f24a2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US38Y2308470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb6dfb6ab06514109366d6d9a97d96fb5208f7bdb2d2ee02cf98aebf5f48f3b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US38Y2311114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1c9a42c5d1b5c0c134d487449dcd905ba2e9984dcb17fd3e5f5460ae400114. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US38Y2410540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd458b788bc1067451db613155427c55e26b28eed6dc50eda3203c690a5b7307. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US38Y2421707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd21c8224791a7d68eaa28a05d68d9fff7048b642aba21d20c74ef0c77a8c8e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/US38Y2427625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb796f8d6dcf91b4018e13e46c45a61b092c7cb7a39d7f137160e06c405fb9ce5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/US38Y2427626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c89df8169b74594fa6605acab286f87fe9e447963f1c29cd141e4e136c78c5b. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/US38Y2427627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62647d69cadc153c9830aaae5c2ab2062787494477998c842b944f9d718b7df. 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/US38Y2427629.