Erik Weiss (born 12 November 1973), better known by his stage name Liondub, is an American DJ, producer, and record label owner who specializes in jungle, drum and bass, reggae, dancehall, hip hop and
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 0x64e94ce3ece914175543e2a93de1ee641bafe96a9e17bf64e71a1a059db8e3e0. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18cd1fb6-64a6-45f3-85c5-38258eb215b8.json and https://artists.proofprofile.net/proofs/artist/18cd1fb6-64a6-45f3-85c5-38258eb215b8.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 0xee5491eb6cf054f8b44ca45ac0b7dfd16c8d72d6f371390058654ab98c1d3815. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMKKH2201147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8756590f88ae702e6fac9739072fec3ae6917537d1d85d22782810ae2b326f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMKKH2201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe57f9785cdeea345b41960b94446b0c2f7cc70927e78f53f1350f8fcbc98c8b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:41:38Z), 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/QMKKH2201615.
Deekline & Liondub presents Welcome To The Jungle (Album Sampler 2)
Deekline & Liondub presents Welcome To The Jungle (Album Sampler 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aca6f85eba7eea76c714ee832d4daadaa3a014034eade5cebf89671d17553b1. 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/GBFG92200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af4d02fc8ca6c2d0cd76fb174c7447cc35d52f528fb3c17afd64fd04b9ca5ac. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBFG92200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceeb6f437b88a8f5c463e8d53d0b82a7b0f358b3c9c59965ff10fbac7cda200. 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/QMKKH2301699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863e6b25d5aa087db759b018843b2a63defd49c6900191d2e08249941c6c970d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMKKH2100760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e59708b10ba740a63629859c42081426e6d6a4d58697a21f1fc61d3b387b99d. 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/QMKKH2201081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f5a6296e1af6c9640217fe5c31f82d9d712edfa44e082d2e8c17e2ad49dcd4. 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/QMKKH2201057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6e1d5d7e9a40e329140e7ab5db0babdbe06773ffe3962e5c675f49df1743c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMKKH2201606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07f3042ca5652185246a1d93c8810707697c42bb0a304b1ff71ff8b722cbbbe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMKKH2201540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64481ce9848531c202df40a36859492da8d65ef9321e48519c064946a72b5246. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMKKH2201541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d9aad27b65db2b5b3bf32290c0187ab42a09e39a22bf424a28f3cf60ab92d0. 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/QMKKH2201543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4de2c2f0c7099edbe80a3a11ada7ba46a9a8dff02de054d661130bcb1d767d. 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/QMKKH2201545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b58325c19d2f629aafa1d5b957c9eb2f6e45708e2770850916f23a99024f73. 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/QMKKH2201546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68da0b85063dfda86a486e21f9f595d07ab871d5ea12f59357e61a9f4b8d9780. 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/QMKKH2201547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8671c13f0b734db05098bbb0b6ec9afa72c4cf095550317f53a1d88517d11a. 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/QMKKH2201549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672b8cea607bca9127334c38832c259005fc6fd830f465b3659bdc3fc3cd1752. 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/QMKKH2501772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d286d39988f5b28277a97f84ba9adb6224f215ee8264b83ecf7db962992108. 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/QMKKH2501768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbea785b044536a91382c3da987ce202a4ebc1195ce781679f8a397e6fafd58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMKKH2501767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd938c52b81a07cbce049acdfc0f1be72d2238f5e6b82dd13d97b8929f45938. 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/QMKKH2501766.
In the Dancehall (Chatta B & Liondub Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7416eb90bfcebea070572972fb0ebad1c948624253324d301c6b2663dce2320b. 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/QMKKH2201054.