Sagi () is an Israeli male given name, of Hebrew origin, meaning "great, elevated, sublime". People Given name Sagi Muki (born 1992), Israeli judoka Sagi Hartov (born 1978), Israeli-British cellist
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 0x52c5190e1329d1c640b42473f5506f7085fa474647ddf35161f0344d2678193f. 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/28fd7525-a39c-4c38-ab8d-be02d99f9890.json and https://artists.proofprofile.net/proofs/artist/28fd7525-a39c-4c38-ab8d-be02d99f9890.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 0xcb7c96562b0b6bc8f1394e8c9f7d2748c77169beb43756d2e4efc489fc49868e. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZZ8A2496543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2289102a22b484275c3ea26fe094df7e5f862f8b2389311fe2c89a9bca0049. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:28Z), 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/QZZ8B2440177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df882fb4e19a36da9bb39e999cddbaeac2b5971b5bf71d1ff91f891775c22d2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUA1D2504990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c0671d50a60bd1f900191ec566344d538f66e0b1b38d20e74d4c6a2a25a6af. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUA1D2528938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213de7c61f137bb82000d9289530ebeb6223a130e0e712c363083b1692efa518. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA1D2528932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a6681ab1c51d569eca4ae6e219c051c01d228441aa7f734828ae690edb5997. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCADG1720908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35decdfa2c60de147662ae00ac247579ee8c4e16071eef28f8fc6188ffed5261. 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/TCAJM2509863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a12c69a34cb5ba34fdb1187f5389bfcefc819e0076326e52b2991d0598861b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/RUA1D2571805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584348e6b9a2db0af79976dd43750b35c5f704e61f683f54650490c0f45f6623. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:55:20Z), 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/TCAJN2541444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a25401cbc951cd2430a52dea34804a1f892cbd6d0e79b3987db6d9c186919f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJO2587599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1180f60b91dca579c1d9e66d38246fd4728c35f82977bee42a9dd3803b5296cc. 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/TCAJQ2566302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64517e27b11dc0514a0e9e8eb1e59475da26c493c2d81535805cc34c71627ebe. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCAJO2587525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50cc3779b1771b36aeb2971752d1d1054d47a5a7401cc2f4217d297dcb406d3. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:00:37Z), 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/TCAJQ2574646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9120074d46dfe817c28ce75cd891f91d10415d72e40ea10b234408e550c6f7a0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAJQ2574468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8873a5d7e6f5b9a3ba93fa19d3d331f44e5d9f3afc093f8706a9a2b40193ff8. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCAJS2598954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2efaf18a32f6d5a7c0e8dda053731b5cb546e9a941fcaf08da86aa084638b8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAJT2554104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92979d9a549d55392383842e3e6831f749e0fb391e9f7bf7eb21ccf9bdacf1d9. 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/TCAJZ2521857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33c656401b697fb878682da5b336f6b77fd0e7b358199a2857250a43b73843f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJU2596634.