Black Market Karma is an English rock band from London, now residing in Dover, Kent. Formed in 2011, they are known for their prolific discography with 11 studio albums, including 1 collaborative albu
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 0x599429f62b39dd49559db4c2059faf2e718a2e2fac5eaa65268286041dd8b966. 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/5a75dd9f-45dd-4981-9e32-dee995a1a6f9.json and https://artists.proofprofile.net/proofs/artist/5a75dd9f-45dd-4981-9e32-dee995a1a6f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leave Nobody Behind (Black Market Karma Remix)
An Introduction to Black Market Karma and Their Technicolour Liquid Audio Machine
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 0x35d9f56f1d8ef5dec42caab8720de0c68eb19fa214024f42dc0654ea77e1b645. 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/GBT4M2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e96369ecf9dda219f0aefb0ff53f0951d7d71db3ad72ea240876eb95f02bf7. 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/GBT4M2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67b4049250baa71655ef3e36516c6a893d733c436fe44af5cd6c1427c86614a. 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/GBT4M2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e17fff7949c2d4c881f424e34b92c0d82d5f9ebb4ed70b7a7b48ba525e4a783. 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/GBT4M2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdeb2fda799f3be32701559cd5815660fc58a38320e001561838afea7e68ac8f. 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/GBT4M2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dda1c2e4a911a45cb8417dbc0cea9c183d053f25d0767e22e948b19414f0df. 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/GBT4M2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4d278467d1fc72dfdd6a110e067ffe751e3fb32bd0fc27a5ed32938de09f26. 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/GBT4M2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beed457a52ad57e59792fefe37565dac902fcc00433f1168014c3d26930efdb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBT4M2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb315a1873163e637d17772f9ce43cbb09e3b59f8c97282ce185f42d0948a9aca. 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/GBT4M1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f5b5214f2751ba1b3db48e11c822838a974144cf72c8938b12385f874b4517. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBT4M1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ac1e51b70fd36a8ac537721624296578c14af5da760183ed7b5dd3aae44d2a. 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/GBT4M1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9a8898b110955950291ed931d93807ee631d96d65890f8b8f425ea017674ef. 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/GBT4M1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d91083da78d1b6fc47e650fb3335d56a06a95b27fda78729e399acc039baf5b. 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/GBT4M1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc600d3a44b018fba40c9cdc02b705ec94bd9402decb67bfc0545a9e304ed01. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBT4M1200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82cb455a09fd114f60adaf2cc31ba776e81c1a155825f7e51966d7c4859987b. 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/GBT4M1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe543d149260988e67778fba7e0b213f011835ffa530beb5756a9c174d82e8963. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARRO92400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abedb506dacaa67f5ee620946bab7ad37528b3bdbf40c0f09e8ae1809403efb. 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/ARRO92400479.