La Coka Nostra (short LCN) is an American hip hop supergroup currently composed of Danny Boy, Slaine, DJ Lethal, and Ill Bill. In 2004, its creation started when Danny Boy (Daniel O'Connor) brought t
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 0x6b6b96a2fa26be77ceed1aa6778cde4c0ca88542742adf01b2e2a2405342af36. 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/46403c5d-4dcf-470d-bf47-1303aec4a56d.json and https://artists.proofprofile.net/proofs/artist/46403c5d-4dcf-470d-bf47-1303aec4a56d.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 0xcb83eb1d21d6d584381c0e275c0a8a494dd133014644c8d53dcbd7ee9e1e4baa. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USS1N0911601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c6d26f29833f4052060c36628a9547a3d0afe896d3b5d9b811b0d37987a55c. 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/USS1N0911602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a75987086d6037bc6f53bdd33bf8d2a22a2de0eb8c7c49cbf7e4603b5eeede3. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:35:56Z), 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/USS1N0911604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e0479f0eff6e68628c4912ce37e8b4709437a7c9baf70e9884dd72b9cef7f6. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/US6881100792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a2af4fc1df9f90bd8ca9b1d39fa6df6a60020094400a4761000652654ac0ea. 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/US6881100793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2751190844b12450029d4d1a34e8dacc029939b899cad243549f894f08e5f0e. 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/US6881100794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742b0691c32f63d28dd268bedc84d82ff03fee50534de3e121b222c3b0578e9f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US6881100795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02655efd82924437900b86a99e07ec159f87718cbec85870c353edfa8d8daa05. 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/US6881100798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c919ab1e3fff1b3e973810144b39e94b1a5c7052cec9c3538ada5e1248f872c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US6680913901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78073e619758e60c8678d99d4a9307d156fd89e5346adcc7224d8981a953268b. 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/US6680913903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0065a5f213d2ccd323765152f446401423555428f4919b5b991f913cbf4729b7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US6680913905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5078617e703c2f3c4db936c1ef02ffefb627aac1024251b00380b6765b07f7. 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/US6680913906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb70c722025517dcc496877985267eaca553aa96aa3801eb02c440443d77e8. 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/US6680913907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722a3918dd207498a40bdc4edf923dc98fcc2ad5815094d8b5c7880f56ecf608. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US6680913909.
Mind Your Business b/w Electronic Funeral
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111f3e5127ae945509063b4913d7983cb8e521db34366adceffca339768f4202. 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/US6680916134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecf8feec199e16076dfd99e0597f1117926bcb69b62bb0d19469c75ab870775. 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/USS1N0912506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2401282e6e97888f9e0d85e5fd1b9c8ee633d6fbb086c95ecc7751285d6bcf0. 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/USS1N1009506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e32f7df4e7d73b4b7b0dc353559fc55c69ef590239107a4992e87ffccfa9ed. 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/TCABS1321590.