Offer Nissim () is an Israeli DJ, remixer, and record producer. He produced the winning entry of the Eurovision Song Contest 1998, "Diva", by Dana International. Besides his work with Dana Internation
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 0x2053f3f88fd1e60aa5feb8cd337b0a735f50217e6c5e3bb7595a0558aaaf974c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33fb2b18-9d9b-495d-a82c-68129cf70089.json and https://artists.proofprofile.net/proofs/artist/33fb2b18-9d9b-495d-a82c-68129cf70089.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 0xb760e8a39fd06ff01d05c1110efdd3f05401dcd8028a4457f42ddc6538a7017e. 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/IL1012201300.
Medellín (Offer Nissim Madame X In The Sphinx Mix) - 2022 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e85f313d5e4c903f9bce6b8b5f6fc97a1805b916a4f99641c1df8f62e3d6dc. 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/USUG11900884.
Living For Love (Offer Nissim Promo Mix) - 2022 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2604b3d0d0ba82693282fdc45808a34f0a4f88c48f1a3aff65c755fdb34c7818. 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/USUG12104383.
We Can Make It - Alex Acosta 3 a.M Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa83debf09a119486aecbe5dc9808457ed6870def1f9c87e3f4cf872e94bc4. 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/IL6461600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf175448449e90d4012f6c14328b38594dac77518f4c38d4e7d3d8b47c58d534. 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/USA371683512.
Turn Up The Radio (Offer Nissim Remix Edit) - 2022 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646973d9b12bfe00baaf195defd03dea505f43ae9c5464760bc4624f7cb40210. 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/USUG12104381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2604b3d0d0ba82693282fdc45808a34f0a4f88c48f1a3aff65c755fdb34c7818. 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/USUG12104383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b70a01f58d7daad60c19a8750c47896c71066eb5372b0e0e4c8f12b7f0aec8. 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/NLQ8D2101928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd93feeac73e54f9dd63c375c2e1b60bad21b75eb3155815b73a8894cb489cb. 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/NLQ8D2101053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92fe93885459a9cc39240769339e55efe39ccb089858833dd71f556f469e277. 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/QMDA61497857.
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
TYP DISCO - Offer Nissim And Mr Black Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc588abb30c91b30b61c578f787c366c49b00d9fcbffc0a5bad2e4aa58bc92c65. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRUM71200074.
Toda La Noche - Offer Nissim and Asi Tal Remix
Toda La Noche (Offer Nissim and Asi Tal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826c691db3dc0d9df742176ef0b5cc649f476c185f2263ea814a5b7c4e48bae9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USA2P1364184.