Lazard Inc. (formerly known as Lazard Ltd and Lazard Frères & Co.) is a multinational financial advisory and asset management firm that is headquartered in the United States. The firm engages in inves
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 0x6f1d948f7cbb2fbacef500d5e6af8d50e862bc98f54cbc83fe20fe1985ba7845. 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/b3811e02-aa9d-4a07-a127-569613a36a51.json and https://artists.proofprofile.net/proofs/artist/b3811e02-aa9d-4a07-a127-569613a36a51.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 0x554facf70848309bb5cf6a89ba83cd32386cee6026490db20a99d213e56fd422. 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/DEZ170400662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d5eb0d6b653b5f2110b4ce0590b64871a35abf76795b9d9c3bef366065e03. 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/DEZ170400698.
Living on Video - Rocco vs. Bass-T Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4fb225e9b8fcd4991fb78beaf088306449daca39bde4e71ab356c1a550469f. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/DEZ170400699.
Living on Video (The Remixes) [The Remixes, Pt. 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e697e872e619fd4785efa1dc5e252503c5620923b0e3168e8631e1e5db5b28a. 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/DEZ170400657.
Living on Video - Speedbreaker Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87af8df969590310c56c610c7c6f50c520c4144dae70c94d0fdcf00091383696. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEZ170400659.
Your Heart Keeps Burning (House Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b581c1714b880a4de1542ff2e45b67d19c80cf648fb3b7b7d850d862f094a73. 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/DEZ170400513.
Your Heart Keeps Burning - Royal Gigolos Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0f4430011ec0cf8185163e954186aa953b38069a432b0a7c6be25dad2e05b2. 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/DEZ170400512.
Your Heart Keeps Burning - Sunloverz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53afaf90b516220d9e68185187a52064eab362450cc378155cd63ed43e1bbeb8. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/DEZ170400522.
Your Heart Keeps Burning - Groovestylerz vs. Rockstroh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b392a61c8cfdcbc686379a8a6f2340e4fd9c84f06b1936d3eb05c1d53a56a4. 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/DEZ170400836.
Your Heart Keeps Burning - Stefano Sorrentino Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a947dd4bd18ba12392b60fccefb432f1aee4ecaad24b42946c766ac3726a077. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEZ170400521.
Your Heart Keeps Burning - Royal Gigolos Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2530a84bdc4c4722edfa004adbd36c7603d7b2c9fc2c1c137d4b951c2b968e92. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/DEZ170400520.
Your Heart Keeps Burning (Handz-Up! Edition)
Your Heart Keeps Burning - Rob Mayth Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72475eaf3044effbb3f87175da170c0622777a11c6e45af230c9e1155069e68. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEZ170400516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2129be76cbc2bd5f2c4748b1b6cd99676f086809f13debdaabcbe863242e8d34. 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/DEZ170400989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a8904536a92ca63338fc1b5f3f057b8ab86d079f9b9f7791a294257d0e974c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DEZ170400993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4f1653b139e7251e0f86461119796215196baff55c17fa4cff805e5c14b621. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEZ170401078.
Here Without You - Alex M. Vs. Marc Van Damme Bigroom Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fecbb7bec6f4380971dc934c8f9d66e06203ade0869811efc6aef07e7eaa36e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEZ170401082.
I Wanna Grow Old with You (Premium Edition)
4 o'Clock (In the Morning) - The Crow Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627c3e8c622d131d727df3c9a9c4e4635d96608020d1e6e6cc7d7f49639fe3e1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEZ170400129.
4 o'Clock (In the Morning) - Djs@work Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41edd8e98a52f186111e546429b7a72c72f980fa91290abcfb7d17238ec87aeb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZ170400132.
4 o'Clock (In the Morning) - Original Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443d2a6ecec81fe0990b421c534088af00e97e7dcac44bfe6f7db236ffbce112. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEZ170400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bba8610f9541ad351b8d403181242cbdd2964331a15e4191a0e5b85f449d93a. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DEZ171802365.
4 o'Clock (In the Morning) [The Remixes]
4 o'Clock (In the Morning) [Reloaded] [Klaas Mixes]
4 o'Clock (In the Morning) [Marc Kiss & Crystal Rock Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6490c362c1013db56c784c9d953a4a39f1f704a6fffe59cead8abec4da6d6661. 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/DEZ171902449.
I Am Alive (Mindblast & Bazzmaster Remix)
Lazard - I Am Alive - Mindblast X Bazzmaster Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3441da54f00651aa8b2abd1e382f0a6d7b3fd3a4e016a1e2426ac853b19e246c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEZ172202483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56805c5821bed03cae6a06ce8b9b6e9fb5fc1b2e53a3f184360660e02cacd50a. 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/DEZ172502516.
Don't Let It Stop (Premium Remix Edition)
Don't Let It Stop - Jens O. Remix Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c182609263bbd437db9f63332db01593cf0e0a336c3faa6689122e6e2d6ebe. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEZ172502519.
Eighties Reloaded (The Very Best of 80s Remixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a36d7a3a8c8f28a91a2234f1fe9445d5c5eb19328b27096edf57f44c9e1a29. 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/DEZ170400867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e697e872e619fd4785efa1dc5e252503c5620923b0e3168e8631e1e5db5b28a. 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/DEZ170400657.
4 O'clock (in The Morning) (DJs@Work RMX Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64354a5ac2fc2bdf57be0038cdc2cc57d38bc86e42f6e7547df51a579ca8eedd. 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/DEZ170400126.