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 0xa8c061c3fb1c979fd8d5aafd05ffc6c0394e5a547f51a7d81796f4cfc2499c85. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30760b8e-9e60-4bb4-8b8a-e864429329e9.json and https://artists.proofprofile.net/proofs/artist/30760b8e-9e60-4bb4-8b8a-e864429329e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
התפילה לשלום המדינה - The Prayer for The State of Israel
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 0x802c063d36ae2774baf6cd9c1b5cddc403f89a125810dc8f6e274f45e2f9c307. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/FRX871598984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2ca22f2f0964e994a37d1b08458f790459c67f154b3e3d81d8dd4dbf41656d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/IL5842235816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc24e89b2523a0afccfb349c81edda05f40ef1e6ae58b20e470be36b1abbc3f5. 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/IL5842340849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792dbebc7e8bd5fc7684d065ee022e0e82ac00e6aa443f2ec98a3e37861b5143. 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/IL5842340963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd816c6b17d3c29a3d2e5aa9bb5d5f0c9f2095045e34050f289b82fee14e48f. 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/IL5842340964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad20d1be6d1270676dc641411a8afc8541f8b7318b929b4be8672f3cf9c9e45. 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/IL5842340966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd559d78744db70e3464687e46ae4a0230b207b35592cfabf7374f936f1995ee9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IL5842340967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9867a45737648c35ecb1d86e01f0921313b1e416ff5c87983fd41465c62947. 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/IL5842340968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17744a20cf01c22e0b8c5a7f8e4172eb7749e8e0183942b6ff457bbf72d160cc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/IL5842340965.
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 0x4527c5dc8e89f2ee578a90227e4ef756cf3c8848c49ee708006918ca7269f39b. 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/IL5842340969.
תפילה לשלום חיילי צה"ל - The Prayer for the IDF Soldiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd716bc5c83ef5fffc7adfdc02f7b44dd4e4da87aebed1e5f9e4dfc99c7dbfbb1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/IL5842343786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb98fa0ab8b0a2260d1ee9242f7b53b0b1d102d94d06a360a7d557625cb85e1a. 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/FR10S1545077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edfc3e4a5a1ab1f9efa58f3c37f194f02ee60a1d9b7fec62d27a259e2bcda6a. 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/IL1012402451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fab301db5f037a58477595379621548ba965d9c55374f67d42407c015c9746a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:19Z), 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/IL6001300130.