Eldad () may refer to: Eldad and Medad, two Biblical figures mentioned in the Book of Numbers Kfar Eldad, an Israeli Communal settlement in the Gush Etzion Regional Council Maccabi Neve Sha'anan
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 0x83042c64ab9618e697a3e573880aebaf4b31d05dd4fc84d8ca852b921a5d8de8. 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/79b87a59-2cd5-4866-b304-5856e8fa9a8d.json and https://artists.proofprofile.net/proofs/artist/79b87a59-2cd5-4866-b304-5856e8fa9a8d.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 0x1b9f8d33de2f6517fb7b8bd85bfad9cafc015ee7c1212e0446157f9e69b56804. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGJ2528519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd79b8ae9de490e37e339a1201003730f6b40a32056f8e2ecefab84c19db51b4. 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/USCGJ2528520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd660754b6dc686e20637f0be533d0d1d41dac722d30842630247cf585da6fb8. 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/USCGJ2528525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd27b231a72cb25b9c152a46c386cfb473cf9cee4e6afd63a4d8ad033c6a3a5. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USCGJ2528526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59265335fca996c23cdfb5d8dee465103917772ecb0ce9b826ffc5c981ff00e0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USCGJ2528527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30701e3c149c3600e2450d9b081fb0e06369a94215dfb51bbe2e7a92c9c9b54a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCGJ2528528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c5c5d06f7ff5d871922effe5645937bb85ab360b537b8016f5eb5d09a05e9a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGJ1896744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bedb5d8f22a2972c6241f15a68d6638f37770e5ab3b6a7e0c5cbdfa7efbf2c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USCGJ1896746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e8d0b6e24b38fcf5aaccab059095f75bc0c924b2973bc28ff028ae3412baa1. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USCGJ1896749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a483cf9d1ad9974b6a2253ea95fb155c3ad10cd062d3c8f61788d23e0161e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USCGH2002852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde70a553f453ea89041773eecb1b4d8cab5c2eeb92d25179ed97caf137ad0468. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USCGH2002854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb363a3759e89fb6af3231c503b8dd8893178eec710031df8ae5952e9783147. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGH2002855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1119d76907c94d4b6ec70ebfa9ad0a302c12e0f645b29d50161dbfec8e824d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USCGH2002859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa571b5173a5c2b2838379729e4a2ad3efa6390e141cefcb1207a845cf7628acf. 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/USCGH2225196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2339b59a86eee491bb5c44d310b62f536f7575f1423c569b73a4d213c0173ce5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGH2225197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442defde834138bc7f019dbbe41fcb531b7e716587e713983aa2683b7f0d86c. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USCGH2225198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee598104d4c890c901eb3e039848f8108e61bd4471b1c9643fa038159be04ac. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USCGH2225199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71f63496e594c5fc4dcd677b420da7de47ffb949d2078be006123896e2474d4. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USCGH2225200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68a1a277b84c562cba42b45246bd00347e4bd3385fc1aa99671583acdb244d0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USCGH2225201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba7f4fbae4c726c93f3cc0c21fa2054aa9b48c836249cd041fe3741aae155d. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USCGH2225202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760cac7e3ffc9476efb90e71aa3bec442e9a9652c13f660ed875fb913b55a0b6. 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/USCGH2225203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27bdebe103d3bbc0e8e90fc4396ab7fc22c74d7a04b6eff8930fb2af844e39. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USDY42506332.