Dennis Milton Chambers (born May 9, 1959) is an American jazz fusion and funk drummer. He was inducted into the Modern Drummer Hall of Fame in 2001. Early life Chambers was born on May 9, 1959, in Ba
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 0x86a5163a9e8a28eb289a28a32ecc894b5d62c7e012a7d7be9cdd573f49ecbc85. 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/07cef603-e007-42f7-b34f-c7bb732fd8ab.json and https://artists.proofprofile.net/proofs/artist/07cef603-e007-42f7-b34f-c7bb732fd8ab.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 0x4c27dfe414ecb08765c855ec7aa5cfedbf2f8e7949b961994dac18228f5dea07. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX451538171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef26cf4a1423b3c13537fb1bce4522f4dcfdf501b735e4df01271fdea28cdb3. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/FRX451538170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a54e2e57724542cb7558f40c16f4436709c98c934e784a2161757edfbf5f8d2. 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/FRX281593179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fda436679036893fe562b4c9233e62e71417351d6a22f88803f9b98a13606c4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX281593177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d5555d778c8c60b1c59b376d055d0bb16b8d7f30868b43a2485148f405d091. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FRX451538175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b82e5df942795d28b78c0c701ce7e42a8685affe2f4048fdabc51cb1dc1943. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRX281593167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874a5e8cf809b6aa534305eb5ae4dcfa782c195b2c731a0ba6c256987e3e1bbb. 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/FRX281593172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7675e1cd9fa2ac89a3e8d892835000e09adb4af7c06c0469a2614d3ae030bc. 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/FRX281593173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a6f947c3226f9f44d406dc76e0e85e350227bab17be907b174497f0d396425. 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/FRX281593176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f673328d19f0035c0f399cceb22fb6c9158470a4ee05af8761bcc98473d523. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FRX281593166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0687048066eebe983e63302926429b83c065c0b41fad0de64205d834d3ddb59. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRX451538173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8a2ef06e526a9c1bc94990fd2e0bf024635b5a18633cf50cf439c6ece5e2a1. 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/FRX281593180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e95c86cea217056383588ae456ef4f23f4fffd1f350b1e322ca1ac1f020710b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX871522243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098fe984100e553caa833815d3135dc55ba9855639b1af57a6f87810370b82ac. 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/FRX871522238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10821ddabcaab8e9c3bb76f05eab7ab5051f885f1d37133b7c1305674e20e5a4. 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/USBN29900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d9c5ba4246e912d6aa7c9f4777c8b79be89765449814fc2cd0c5282e8dc85f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US3M82206194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e771de4be66cfe4925a3a2cf508a889f73715b7dc912c1bad8a1430c1d6457. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QM7281540738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332922be2a91a94d9d3078e6bed8740030a7919f1006f210d8e50feff097aa28. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM7281540739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb0661ca3bf00a21d83fdd33e8350b6ec1012a61804642d0bc29ca11195a92f. 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/QM7281540741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6223a9e40d2652ad2224542fa0274ca945658d4301e6eb2e48745854d427689f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM7281540742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da81dac9033b4648691d2c5204a6907b60ced26c858f3d8445d6a7973306b76. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM7281540743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c21152a294145536413a64e8f340929395c3627b969d8dcfa81ae34830f03c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM7281540745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24952db42e48eef62ba35ce3b2c3ba307375c50dabfbceabaf0e81119184684b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US78S0507603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e387788efa6212ace4e0a738d53988088e9d4eb88561cfda09ce231b29e057. 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/QM7281540744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c9f46ce770ab4b808157306f2220a65f150ce12444e21d9568cf3575f93a22. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US3M82206205.