David D'Or (; born David Nehaisi on October 2, 1965) is an Israeli singer, composer, and songwriter. A countertenor with a vocal range of more than four octaves, he is a three-time winner of the Israe
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 0x38eda960295466c07da42ec49aa5f695126038d0bcc3a93857812352fa2dcbef. 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/0de04823-2cbf-47b6-bed6-84da388018de.json and https://artists.proofprofile.net/proofs/artist/0de04823-2cbf-47b6-bed6-84da388018de.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 0x16aa8c85ddd31ac1562f9d731585ec5d3ec003ff162c9f21e918e7dffb1220f7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IL1000004212.
דוד ושלמה - דוד ד׳אור והברירה הטבעית במופע משותף (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ba03c3704fef19783d023836791899a596c63b7e3532e53d4f62effdcec438. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/IL1001087560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295a187b9dd5ba8b4f0725cd14308d54080ce57b22868cdf4586878e5312a917. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:12Z), 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/IL1001087247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9174de0a6489c0e5ba24e7523bfe287298a28a5989024ed92a5eeb3642ac8c60. 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/IL1001088340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248316f103875f8146e5250941adb436ee30ebab3a7db1b81d5bef78ab0f8e66. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/IL4070901014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289c3c46c171d6e338999c579816610bd4d43972e926f1fd452138fae4a06ee9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL4070900977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d44baee0fdbcb1ec6e200624f15746eb358081b60e3c37fdea5b1e8af35292. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/IL4070901016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f6229e9c7e4774aeec4cb617b46fa0485c02bbe6d1072ce8c559de24636e6a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/IL4070901019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf04ccd815fd9a1afdd0452eacc323840d1339c276f28c0393f63e6a235ae5c4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/IL4070901022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd834aa4624c13df7c872a67af55f797405536abe4d817e3901fe681827807400. 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/IL4070901023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607b95379af9bc7a42133868da39419b3d7292103c69ee613e89143b8a5e59b. 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/IL4070900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f72e89e4d204b1a9b272838d2c5156af3816b4d069fcbb92141eef182a03f8. 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/IL4432100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783c5211cb87550d49175cefdb0faa371071baed2632aaf303cdf2221779ecfb. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/IL7532313123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96394afc9c956da8d63b0eda7ed50d2820246e829fbaec48be9f3266ca982ae5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL7532513243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a468fc194e2642d8667a5d71335cb57c8dba5e7f634f2df1a071721814347b3. 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/IL2952308001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fdf291cdae0d75dd4bc11c78f0c85a1007bc590c33bead3a3733827daf9e9d. 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/FR2X41985998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2b29d02a51cd429f55f43f1c1624b12fd4d106ba3d5a73b1c6cf599d4137ea. 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/IL4432100054.