thumb|Naomi Shemer's childhood home in Kvutzat Kinneret. This was one of the first 3 houses to be built and populated in 1929 Naomi Shemer (; 13 July 1930 – 26 June 2004) was an Israeli songwriter, co
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 0xb226f6ab159335707a0caaa3ba423d21950e11e8821ee907fe3135b297751f29. 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/b3bd24c0-9b85-4e81-b930-49127c459271.json and https://artists.proofprofile.net/proofs/artist/b3bd24c0-9b85-4e81-b930-49127c459271.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 0x1d05a5b541e1c19265bcd4a005199c85259b39a2fed241fa121a46bc6bbfe3bf. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/IL1011098746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecae6e0fb19d21334acc95e013644ec8f30a0677e396fd0b7a37c15dfa6694f1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/IL1010002411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81de50065d81a5768a1c668bf10bec97b4ae4a0829dc498990f0292ec031bf72. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/IL1011199877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76abe2bdb1f38cb9aa1173cb10aa8d18fe622c5570710812babc09c5ddbbccf7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/IL1010002686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c14594600de46effb6aff62908da088b54423cc14f64845463539f42d3ab86a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/IL1010001253.
נעמי שמר שרה לילדים ועודד תאומי עושה להם הצגות
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626eb3a10d4352f1cb0cb05489f4a815f9809f5d4b3706b3bb70c38d19d37e5d. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FRX201987656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe240878204ef5587a6cb123deda05e9ff90e7a3017e19c4a1efee08326cb42. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/FRX201987458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2534b8b351b44dcb8d59c0b1c93505f793e88c0208100854e5acdb5e2fdf4c06. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRX201987460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79205a5b4adb2d56c65888098c130bd4e65f031b53bee5ad85d5e425c46ba1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX201987461.
(Oblivious Jerusalem) Jerusalem of Gold for Viola Solo
Children's Music of 'Eich Shovrim Hamsin'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb329dca31208351b1a2c54eeaa7e9cb3e0d4f11583adf8bd6ab7d80fd176455e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL1011097938.
ארבע אחרי הצהריים ג': מיטב השירים מתכנית הרדיו
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c228a345d34c6e59f5b823a5d1c952fcdb1dc4dd153fc395de9aa03b998d0d. 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/IL1010000526.
ארבע אחרי הצהריים ב': מיטב השירים מתכנית הרדיו
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf068448521dc2aa903d13ec141df85c984f1f32b86b204b7350cc33c191ecbb. 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/IL1010102965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daafb4c351907ee854fbb8553942c020acb2c7215bbddb23f4f13b24b778aa8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/IL1010000440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b258986e51aa1b84ec5c3301d04ce1853c4e55c15f94e48935957adb1c0e6f2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/IL1000001974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900a8e6eae00f431aed3ae14bdde8a89fee738d06ef43693fea22e803ff5b9c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/IL1001089311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2ed17328ca1fb47ab2fa6a452c0706e189181ad217736b5d6eebafc9d2a726. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/IL1010000375.