The Chambers Brothers are an American psychedelic soul band, best known for their eleven-minute 1968 psychedelic soul hit "Time Has Come Today". The group was part of the wave of new music that integr
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 0xdb110afed1de5df1ed04213370401c2529c3c83725adfc10bc48485e42442caf. 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/f199b227-dd7c-49e1-825c-3f5280705d42.json and https://artists.proofprofile.net/proofs/artist/f199b227-dd7c-49e1-825c-3f5280705d42.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 0x994f056b0e3349421ae28ee4f237799bc46774c3d3ef4c25cd5b999e0907400a. 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/USRH10722032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e6152acd6cf0db5242c97d8343ad59b22ceebfe600deeb4fcda79e7729dceb. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USSM19917180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd975517ce17d617a787dcbefb13c72a56c6ccd46a3aff4fe65d5e8a74b994e8d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSM19917181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498e8fe871d0acdce8db0226692c9a9edffa97972870c17fe9b5b412c0950596. 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/USSM19917182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88657daa05cba53b45c33814e7b3c8586201edb6dbe50a9f22eff73b7eb80533. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USSM19917183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd127be745f51176cffa74b48c1381c9d0f62c6ef51b1529e78ab84d01efcf3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USSM19917184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d12f89bf84334a6f9439ad81f6fafc3af302755f826566b521c8983947a8c2f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USSM19917186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be86ba8816a884fb8dcf4a558efddac9829294e62fad858f8c4edcfb02b468f. 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/USSM19917187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf11bedf82fa86e97a860193502f0904151dda936ba30de26341d598179abbfb. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USSM19917188.
Time Has Come Today - Alt. Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48d39e95b3dbba60eae99ab6ae5dd5a29747c0f91b1bfdc0a3cf5316e6b141f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSM10009962.
Love, Peace and Happiness / Live at Bill Graham's Fillmore East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a4055e29e5905314d3a794d71bc496ff7a18883d11055c79e4f28a16605dbd. 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/USSM11508613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd678ec5908b20b65b7ab0568aa2766ef4dd528b6c3f9b111e6c8bbf5825dedd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM11508607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bf007193b22cdb36dbca14cee5254943ba708d38f17c7c25c405183fc9c5d9. 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/USSM19917172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e5be0cc0fe653574ed1d5896a9a300760e5e65266d446b605442bf7b279cec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSM19917178.
Time Has Come: The Best Of The Chambers Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba072fe1fe174eaa9a4b6ec8a92226985afa40b55a83f659fa0e1e24713db81. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USSM16600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f62906469904eb0f9c958dfdaa1acb16fa00769f04be8346ea97ff4c33d6c. 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/USSM16800088.
People Get Ready (Performed Live On The Ed Sullivan Show/1969)
Wade In The Water (Performed Live On The Ed Sullivan Show/1969)
Feelin' The Blues (Digitally Remastered)
The Chambers Brothers San Francisco Live
The Chambers Brothers '65 (Live In San Francisco '65)
The Chambers Brothers Live In San Franciso 1965
Classic Harmonica Blues from Smithsonian Folkways
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b244119951270d63f50e6fa2b290dc86d5f87991bc3f7d21164fd9fcf054ecb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USSF16800801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709b2bd6ee0a16091ccc1f787181cd5f144a690c0bb7126cda11da7ef590c13a. 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/USSM16701099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9adf8ae8068eceeca917064bc844b2506b5ff7234bec633c75587c8e00e63fe. 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/USSF11722706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f71f12556d9a71a71387c44ade7b170fb3fcd205403c30f4d55b8057d990fdd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USSM16600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b7497a1b89227e656b0207c714eb2ef858442d62ed3f23f92b47e0529f3100. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USVG29506266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7829d4caca4b51520a2db811612b89d44d1c2c16231f80675e06ad6e63881e97. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM12407156.