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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eda960295466c07da42ec49aa5f695126038d0bcc3a93857812352fa2dcbef. 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/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
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 958544 (2026-07-18T12:14:37Z), 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/IL1001087560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fe1e9645e488f6b4c4c1edf6ec7ecef4a69d6ae9d31b82493c85b951eb9ec1. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/IL1001088331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1504e09e6497981cda262f7ae1c43313920a56748fab5f8568d1c203a57cb4. 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/IL1001088337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9174de0a6489c0e5ba24e7523bfe287298a28a5989024ed92a5eeb3642ac8c60. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1001088340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248316f103875f8146e5250941adb436ee30ebab3a7db1b81d5bef78ab0f8e66. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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 956484 (2026-07-03T10:47:44Z), 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/IL4070900977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d44baee0fdbcb1ec6e200624f15746eb358081b60e3c37fdea5b1e8af35292. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/IL4070901016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f6229e9c7e4774aeec4cb617b46fa0485c02bbe6d1072ce8c559de24636e6a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/IL4070901019.
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 0xcd4e766254e5b12b44e30dabd885adc7a4dcd26bcf7af3d728ae7c0bff9cfb3b. 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/IL4432100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5348c1d17fe517bfcc6032c232f69eae69e56711aea25f8ed6bfd31e55d055. 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/IL4432100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f72e89e4d204b1a9b272838d2c5156af3816b4d069fcbb92141eef182a03f8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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 0x25e3c0a466a8a259b129046647f0c9c672951b28640d88d6abe2447338610f9b. 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/IL4432100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd288e1447b17d95e3f3b84d4c5cef1c01ca1c449eafff991d5acf91736ddf3e. 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/IL4432100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1624469226aad0bdef7d1ce426c595ab6b6affa40807fb3c6dbcd83dd85afb9e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/IL4432100168.
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 0x678be1bb5856a06312fc80da1f41b427b575b8fc39174655840ca30acd306d33. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/IL4432100170.
מחרוזת עננו, אל נורא עלילה ואדון הסליחות - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d713205a8b9d4135a24c4bcf5d369a535613570fc117e24cb0eb69b16e6eb5. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/IL4432100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102d62c7b6eb99383827f5a60e221c6b75926e1a81a8a40d471c998c3a44c531. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/IL4432100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783c5211cb87550d49175cefdb0faa371071baed2632aaf303cdf2221779ecfb. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:31Z), 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 956790 (2026-07-05T12:31:54Z), 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/IL7532513243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a468fc194e2642d8667a5d71335cb57c8dba5e7f634f2df1a071721814347b3. 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/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.
עבודה עברית - מחווה ל-50 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe917711da32c551b4ed2346063451a224fbf4f5c324a94dc69a835720df7f1b3. 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/IL1049801155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2b29d02a51cd429f55f43f1c1624b12fd4d106ba3d5a73b1c6cf599d4137ea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL4432100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b88a2f6a2402d90d1da4fe842833f9bdc79c9271b17cd28a5881a1ea9fa42f8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/IL1011900412.