thumb|upright=1.5|100 years of Aliyah (immigration) to Mandatory Palestine and Israel, between 1919 and 2020 Aliyah (, ; ) is the immigration of Jews from the diaspora to, historically, the geographi
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 0x31db2e057b52798a7b1a51760d5915733bcdada1baee2f7c9ccd6cfc48774a9f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa925d30-ff11-448b-a75c-f8b202c0fb22.json and https://artists.proofprofile.net/proofs/artist/fa925d30-ff11-448b-a75c-f8b202c0fb22.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 0xa2ea7acd56e0b1fb167b29c80f0380f9df0751199b9b747ac7bff5fbcddff4f7. 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/NLP761300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d3e1c2e275fd56df42d150b0f057b7c08fc42e0210894adc20232e84bca33. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/NLP761300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d33e3cb5e8ea1905ebe614695afda4dacdcd9c149bd126611ffbb15f1f8d0a. 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/NLP761200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aad896180e3fc89a01ca1436a7033706727de86aa7c94d3f44a89eb8ef5e84. 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/NLP761400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2eaf86b249709269e1003213c1b5c6fa7b35f00c84c5638b0af6c8b5baa42b. 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/NLS8S1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e762e6dc6706ab072c16716a6eefc23f07943ac69a2a381ebb3712e9e67b1c. 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/NLS8S1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca82db385ff36cf895ab846c2bc725929dc7fa93bccc2e17cee679a12cd51cc0. 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/NLS8S1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda183de26887079e7ab40dc5774788ff00f221372279b352b75584589fc498a1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NLS8S1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1869fa4aeb6f80aa6f5918a42ccd6a2561dc198a41c5bae48797728667ac728e. 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/NLS8S1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c8829efd7259d5188655fe90219e782eb876a73fcee12cf1850da9b9866a3. 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/NLS8S1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12960ccd81897701db5afef7ea5088585c0938dbae483cf12d57d276ed94fa80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLS8S1900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd27bbdead556129ac14daf7d4d6d987a42aecf716cc6604b49708385fcd2bd. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/NLS8S1900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebd84c8f2361301c13d301de986771bdb3dc229ab18b897c2c9018607f38781. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLY9D1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7e0a96f97e35f9b35eaf31e6b2320b6b5aca85a28c81dbf891f8acc2a07bd0. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/NL6JV2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6382618a6a4bf439bf0391acce786ffd8e7163652c6eb36412de883bc12eea89. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLY9D2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1679155b39b22022650011d9dad5d802fabc82bfcb086e30b4f1641b06938b0. 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/NLY9D2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6382618a6a4bf439bf0391acce786ffd8e7163652c6eb36412de883bc12eea89. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLY9D2500002.