Damageplan was an American heavy metal band from Dallas, Texas, active between 2003 and 2004. Following the demise of their previous group Pantera, brothers Dimebag Darrell and Vinnie Paul Abbott want
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 0x1798830ee0eef53cf407855fafa56ae2b6745b6a80a38f242efb3938d3ed76b5. 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/c79953e3-87c0-4c4c-b6bb-8dc5f41574ff.json and https://artists.proofprofile.net/proofs/artist/c79953e3-87c0-4c4c-b6bb-8dc5f41574ff.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 0xbf33128999033bdfbb158f6bd0a438a811f802cf74965650dee135c35018af06. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USEE10340828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094f01a1c22c065b36bab5e78c269ccd4b53bada58259890c1478b375736059c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USEE10340831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f9953b79fddba2cb8ffd8fecdb1cb5292861bd242a0f30a358ac3c7d3cb047. 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/USEE10440070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55437dd99cd3d7edb1ff51c68e9aa6bb3c17ef25b3656512cef122b256eff005. 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/USEE10440079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415a3bcc641be4070b756e9eb8ae10d05cf100eab73dcf1fdb41030dfce88f11. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:07:22Z), 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/USEE10440074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff1a38c54df35ff07a487c0ab3dea7b97e97b6eac8972f169ff4ffea0f4cb96. 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/USEE10440078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4cf1d9237f806b61e3409624afc99be8cca24e75c27ca71b9121b08d643be9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:23Z), 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/USEE10440077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347caf2b21c48813e8ddf03dd392f799ea64b1aa04e128609e490f129de961b7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GXJ8K2520897.