Aviad ( is both a given name and surname of Hebrew origin. Given name Aviad Bourla (born 1993), Israeli footballer Aviad Frydman (born 1964), Israeli physicist Aviad Hacohen (born 1962), Israel
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 0x67e74387b935d47a415ed0c193618cf6c93748863da965b875fc012a6a2262e1. 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/e78e26fe-11ea-4792-a02a-a025006cf36c.json and https://artists.proofprofile.net/proofs/artist/e78e26fe-11ea-4792-a02a-a025006cf36c.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 0x44081b5c12f322d2fa901eafcc334014021460876b026a488620564c1b390dbb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWX2182701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b19566e7760bd54adeb98aeab4990e760106033bec959db49007efb902201c7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWX2182702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd4b9897c1160290e16bdb7b0a3aa201def83f717a7808a3190e4e0d6352ee1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWX2182703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc6b6a2b9f3c248c4f9ceccfdd142b0bfef269c8fee33f3a72548b44cdbb9bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWX2182704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c08f06035e7043bce8d72633c7aaeef9594df542880ebbe48d4ee213e3d89d5. 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/QZNWX2182705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f31a82858e93da8f76311977a2aa1ba45f83df93451fea2a858947c1510f432. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWR2194216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcadbaff90b465d78b8ca47abb7b1568b91c293239610e627e92155a5d72e956. 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/QZNWX2182706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71f75dae68b810c4ffa78d91c8c4b5f2bf49149753632292d09f7c1ab5e6dec. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZFZ32238777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed1d4a3da403f3912276711d31e5e27af1078434bdc6a1cbadeeeb09ed55f53. 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/QZFZ32238778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4e1569759c4a7b0e9ab65b6edcf3f9c46c41594bac70e29a72dd69bc880625. 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/QZK6P2310133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b08b4375fba5d6ef11e1892368d30c4d3d3b1fec4609e030374007e3234db0a. 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/QZK6P2310134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075ffa2d88563123db93c19aa04d49849612b0a540f0f2428b4c5fcb56d862bc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZK6P2310135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1063565e80490a1221a8f9e0d6850d52549a6548c150224f15b89853210aa801. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZK6P2310137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b68c56c359e9b1268dabedc0eec20bb2a9cb27994261588c413914140d8eec. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZK6P2310138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2040a3ea6450b373d572bfc0536cc02642ffc70aaeeb779b8f833048b5c105. 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/QZK6P2310139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230a3175f3f73199f25e3b89eb6ce347ecfd7219153585d0b2f5def3e4883af7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6P2310140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0f33012531a0f5561388adee29536abafdbc437453aa92d51fafa796333bc0. 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/QZK6P2310141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eb577b3e800a621db3b8cb84eb063e13fe1dd57a51ad23e76fbb4d0cead6ac. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZK6P2310142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd98ebb92db99b56b0e98792c6cf36d9db909d0b6978c69c46fa1a6231e15c9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMER2494609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fd0d6617b6203e4405114276dcdcb546ea80f2238d6e9b751119af0049ccec. 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/GBRKQ2115334.