Joe Stump is an American guitarist from Queens, New York. He has played for the bands Exorcism, Raven Lord, HolyHell, Alcatrazz and has an extensive solo career. He is an associate professor at Berkle
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 0x8909decbca574f375b067c1e1c0b542227cb39947ef048e5b1af85b54865abbc. 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/19670ca1-fc46-4e49-852b-648261396c10.json and https://artists.proofprofile.net/proofs/artist/19670ca1-fc46-4e49-852b-648261396c10.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 0x1571639bdaa2a8a4dd09774d3257a0a622107c1e92c42112ffe033c8b7245bde. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USCGH0581639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8786c6f1f0f8418ab01b18405e25d514efa156cf40a21158cddc99b82693b8b3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGH0581649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2fb60d0fb8292a31e6b6675514ab864a35c0bfc3b93069e5afd60fbdefce23. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USCGJ0977961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f582a8e68302734742c8ec470a0fa38c4baec568f167737a0188d2a13565a0f. 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/USCGJ0977965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432eab9db58646a9ed3447d7cf2e8da730e1238f0cdf14bb0c4b8230b57c2c02. 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/US4W79310635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95617d1819c1d3a76d80693ce11aad7cb17e07967e0856a70da22e832556c3e. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/US4W79410646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8944afc341c422a57263bb93d8ed255a7da8a160f601426c74ee3f68f43d1af. 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/US4W79610653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9736d8eabc3b6c116173dd868f66135a07d3fe9a5706ab85202311d62ab660b1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USHM81283757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4307ccf97fbcfc3965d78846d544fba7fdab3fc8647bacd2b66c2855fb3c34a4. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/USHM81283759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9bbc2678ede6917503581fa87bdd44df702e52f4c0d7f9a64c97abc105f6e2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USHM21561080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb55837bb92fe6aa9aaefe6a22061e3bcd17b33f744dd5fa5e4f9824780a82ce. 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/USHM21561081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a12b54cb02f26c21993d39620d2a08cc0ecf55f24b36bc20ff38f4e121de8b2. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USHM21561084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7aaaa61d23ea4e1ad8312e9a6cc51d7cc56d997ef1ec30e420c87f181cc80c0. 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/USHM21561086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d351cabd7a4fc883c53b20071fe6580cf23727f55ded88702741b7af022dbd. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USCGH1992876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c9b01fddbb5f441d4af7e933141a555b6ed64d897a4b5b3de51d2c260d242f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USHM82193191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8c552e7d2c80c54eaf0d3f336bca973a583af4df8c8dc88152292ca177791e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USHM82193194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcced0057e059dfcd64316114b84f6fbedd2096e15da279f4e10f74e95ec68c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US78S0510105.