Brian Blade (born July 25, 1970) is an American jazz drummer, composer, and session musician. Early life thumb|Brian Blade in Aarhus, Denmark 2017 Born and raised in Shreveport, Louisiana, Blade was
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 0x064256d401ff106bb30dfd00c15b30d0939fdea85488ad370481b302f4be122f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b0fdbe2-5643-478c-8d4e-ea7eea04177a.json and https://artists.proofprofile.net/proofs/artist/5b0fdbe2-5643-478c-8d4e-ea7eea04177a.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 0x7f1e96856d9e778da400696068e9c11bbfebda2b20aac3d4122734757d0c2b5c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB332277201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7e79adb3195cf8cf7d7228e1d48f8e4b169c80e9c978c34063295b7d1e7843. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB332277202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac3b6811c39368d066e2883477c0c1c23b4edeb3ba32838d3c9d7d2e91945e6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB332277203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2784f03c8b5cb01a4ad401e65881e7a14c5323f8e09bf445aac6e5800bd5735. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB332277205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ade9c77beccaa2c20c1a228908104e617ba220379b577115f7b778d07c1b961. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEB332277207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fcd64f00a1913103e08a2cedabdfcc0f3cba73ec066d6682d0b2045d07ba6d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKES22300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f3d8e379dee4eb3ff1dd14399cd8936c5078d05bab55d5c1cea4b9202ac181. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKES22300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b2b9299a6115c3e8f8c47d3c3535df8abd93a9f04e7fbc6b884c69de77d75. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKES22300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dabfe899ff7d40722c85d396f728569534eee822d975f5591c14c6f1fcfe307. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMDA72131788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa470849839cdfdfa47d5b4907af9e93b214749955927c7324474b69222bd47d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB331865501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9adef6746226a9a82a226c778446fd9f8968f17e0751c51d84a348b13e05df. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB331865502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af67a2f172955db2f2f328077c27f97528f3804f34f7c15380f53b6bad96da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB331865503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184b88059d70e8b11030bfc66bb5d2bb8956b5f4ae38271b64496c4d8890fe2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB331865504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb8fe43501263e680126f9ebb03583c116c54b40260165e13be9c4dfeda95f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB331865505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa534ee6574076e9b8a7abac36c2ca2cba3788b9cdbc7804ae99b6f39948150fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB331865506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12fa0283aa7ea885563e7c8708422821f55b2766d0c01b2562b7330fec1a91. 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/DEB331865507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f041b177ab155b44c6bf2b1391a67c4c7e8a8ea6843610e381e956bcdfe6343. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEB331865508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef307e164a6b2d8a7790715f18baa51e7e9e8cdddeba1df445c9c47b335da9f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEB331865509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ade9c77beccaa2c20c1a228908104e617ba220379b577115f7b778d07c1b961. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB332277207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dabfe899ff7d40722c85d396f728569534eee822d975f5591c14c6f1fcfe307. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA72131788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a64820e27b9e2de59010a270fcd5e2f73ecfa76828abe73834268842d04eea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738914d5bca1dd62abb121a86133bff21df9eeb6c0681a28fc3a67c73d30d1c5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDXE1800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3a605d07ebb99448ab79320b4ce12f2d80c6906a5edeed7ae41dd8dc2b4a03. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebf27f2c02c358c4aaea82c57b942c2510b40676fc90a8a82fde480c35a2289. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDXE1800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8b28a9b74f5e8a9a67872946618e2aa898716b35673268be46b7ee7f1853a6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dd0dbec507a50aee9d7427d1dfa1b8c494730c6f53bcbb848d14f9b571b2ba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDXE1800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8f6ffd90a02964226d2dd69a4fb7eada97755f8b284c62d0a3a566dc490220. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b85fc7d50189f3a64931d438ea6e594476ad95d500415b92ead3fbf884b608f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDXE1800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4923490899bb4aac8fa5a5ae68e4b811adf39291e4fd5d8dd5c98831ebc12bb7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDXE1800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a46fc4b654c15872b0d5508a3178240e95d3eb2c6222a05b4ca5f5e9d61b5ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5612687126860da8fbc5d7156406e6fed9031255d6d46270a33390d289d3c03. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDXE1800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d70e6a59aefc095d44be381acdbfdfd94fac46dcd482d15697dd03b2136756. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDXE1800067.