Lehakat Pikud Merkaz, also known as Lehakat Pikud HaMerkaz (), is the military musical ensemble of the Central Command of the Israel Defense Forces. The band was initially established in 1953 after
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 0x7e65d93c648fc4569b6a72c2e536bcc1f9884d5661cdb038c4cf1f6dd8e3bd53. 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/a9252e03-8ad2-42aa-b473-5ec68d3feca2.json and https://artists.proofprofile.net/proofs/artist/a9252e03-8ad2-42aa-b473-5ec68d3feca2.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 0x92ab7b0d4f3d38338aa5f9bec1499a17f4bc27ca6da0e2562c8865e03ac45b3c. 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/IL1001086794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43da551db4ea9d2058b1b79cfb21be2d16403edb4cff7c8ae36ab8346c7ef417. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IL1010002625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11501947c1b185961b239344c03fb9f3bf0eb7960ee82c2ebcf701b78ce29a1b. 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/IL1001086797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dff4a68e0c463f4e5c6140f131b2a79a0d5f1f0b5f83c5a98c425e7e3b2200. 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/IL1010103427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db23550205408e0dad173b8e75e2dfcc25bb0fa684b4f74f6e7d55f90581ee7. 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/IL1001015555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a1e575adc6b0fc806f0e13d2d611a0904eca00fd21373baf861653e1e92acb. 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/IL1001086834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f5a3ada1b45e074d698ea084bcd2ba9370d14434e843b2b943515156ccad0. 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/IL1000003512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e40b71be9cd7db5b9f56394d6adf836af88fa8ecd2c70e9ff685420787ab24a. 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/IL1011097592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be30c41ff455f16b5a060be2fcdcd2efc1c5645382635bbe7f8db002039cac. 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/IL1000003689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb2f94dcbbd8a15023b7be00bc2714af236af96b00c6ddac0bc1b132ceb74f0. 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/IL1000003517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9da65342c327d741a2d7ab4eb51cb31071574047d504b0c016ee732dbccd2b. 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/IL1010002522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c77c2eb5dc92b43f56404ce95e302a7af8657a7d02255fa3a9d4ee4a5c868ec. 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/IL1000003518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fea1ea4d653dba9ee84093925f453d9535df197a19fe5e848782a5604975549. 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/IL1010003875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8654e11e211848c6161419acb7ae993676538e8c98598fd4f578c223018337c0. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/IL1001086174.
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 0x13d25b7bec04c610673cc6acdcb75016e88d46a1ae647b2b7df92ffe65d8c519. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/IL1011200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6453b0e28a7e8d67211bee9aabfd3785f32c9d3d47e2a5e9747e5ad14e6f13e3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/IL1000003506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a00609ab638754815447834a244afc4d57aa04f4df747b2f198d5f5e85ac87. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/IL1001086796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ea46de25b6c09e443088489dd307d696b42f7c11466b42e0679eb206a8d180. 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/IL1001086625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54dbc2a5c191dc393ccb9e3bc3e46147588aecdb5721dcc831a11aba6334697. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/IL1001086627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed56faa75715cb749e5c0a9518b3c5e2cd6390347c83a86adad4f4cc0c7493. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/IL1000003510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b98c8da02e378425f1b81dc371860d35a231e9923688eeef5f0bc45ee8fe82. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/IL1000003511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cec8d18c65d1069408f8e774f1ac398d3efb790066f7e1cf70f342b151d25cd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/IL1001086835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae2c8db4bfc4576676a4879decdacfcb2f2705768acc593179d68f5580bac5f. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/IL1000003363.