The Charleston Chasers was a studio recording ensemble that recorded music on Columbia Records between 1925 and 1931. They recorded early versions of songs such as "After You've Gone", "Ain't Misbehav
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 0xd4640603489b9d9354e0f8d2fab3b56e45862a42f120f74a1f3a76c60bcf3a98. 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/ae94a73f-4fed-4661-921d-50413371383a.json and https://artists.proofprofile.net/proofs/artist/ae94a73f-4fed-4661-921d-50413371383a.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 0x4d766fe329a66d85e50cfbcb838f7c151bae75ea035a5b218b2b16fe097dab18. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:48Z), 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/NLA410810935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002f0131f143fe1f1b2c667f7cdc2bd8044053c57add9589380ef75f30419006. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:05:41Z), 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/NLA410810936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4cceed468bb421fa56f9a578b67502c599c4d7792040b286940b5d0b96e3fb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLA410810937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30b6b0c7b5024db5e0d916471921e841e86bebcbfe9ded2b62db35ceefb2879. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/NLA410810942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda50c92c542923f0a3590a4ef7f07b790fc9c11a307eec9cf9d382d3adaa5aeb. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/NLA410810944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c360b8684ec565786a82aea004deeaa13a11ce86f609e6a0d9c06af7b932d43. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:20Z), 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/GBBAD0900254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919f5d8a9230404db939cec37b4616bf39973e0caa550c5129bbbeeef787ecd1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBBAD0900256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f17b11d3e952caa9cc5cb58c6226c5a239c5d9bda1587bd39cdf155a341964. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:18Z), 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/GBBAD0900258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68829f1d3c367f4091bd633bec5553e12a2aaca6c35b02350f962aca63ad47b5. 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/GBBAD0900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf980b08e8ebbc531eb7b1ed1f6445d312bf0509f0b500d37e5037d697056845e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBBAD0900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503cb6e3a4eccad4f092500b1229e6df4e809eca65dcaafdf9bc8fc13e10d442. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBBAD0900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58133a1fabde33925b5657a63c0465d89ae9d1a2009a1dae48cb552d0f5b367b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:41:02Z), 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/GBBAD0900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186a65c2e6ffee5b7948e1aea2e8db6ce07bc8957848be62ad6f6697e1bf0de0. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GBBAD0900265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebad18398a714375dd5f68406efadf958b43374b1173add5e4233688698aeb3. 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/GBBAD0900266.
The Charleston Chasers - Basin Street Blues