Hasham or Hashem () may refer to: Hasham Balm Hasham Kuh Hasham-e Champeh Hasham-e Howdow See also Hashem (name) Hashim (given name)
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 0xa0a266c18cf29118cdae9b6897168cf82d48d8bf3b1486e179a7943a47fb9280. 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/cc352749-4d39-4c0f-bf16-8d8380f6c48a.json and https://artists.proofprofile.net/proofs/artist/cc352749-4d39-4c0f-bf16-8d8380f6c48a.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 0x514d84a1234279501696ec46eb1c5eac60a2008f01fc2c651227f102ba6da29e. 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/QZHN42354746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb570e94b7527a334f9fb5f6c01c3a02978d713968d7e9a71ee79272a44a8915e. 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/AUBEC2301712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a6ebcd879b2c45c830a64c02617b7433ed7ef9272b09a04bd232e955e79198. 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/QZSYP2246535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3384ba9f14a4c1b1c23442bf81334f367fd4965650004fe7b5c7c572c77c82a1. 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/QZTAS2278731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd68f251deb07ec7dc5cfc55c7ddfdb118678622a366385a71612f4eb417fde. 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/QZK6Q2262088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f39dbeca6a8695b0aa01181a91c42041fbceae6cbf57c3287298becb0169707. 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/QZMEN2114246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663922dc17531b0537caf3103947ef11eb1796d91c6b8017f7a3b5f343e1476e. 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/QZHNC2125917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c75f19b64410ca5bbf504203428b72f7d850eb022d804a63a1a623da33cf491. 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/QZES72176898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3100b476d780ab587ec51f34005a305fbaa27cccb4892b06a997e1312ab788. 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/QZES72161667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cf92a25b7c9b3f0f7c029475b996b7503653b27fd7a9fad29a183d1618abf7. 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/QZFZ62170765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b1a63b3fffa1c5934696e25f073f1a70fd9ca77d0573270df2e7d12211a224. 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/QZFZ62170766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d359378e486b423643b6a447ad4bea16e7acaa94875dd1419b2640e33a9d704. 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/QZFZ62170767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3727c5296559b8c207f3dd4f966313b7c98adf8fbd3f0f532b1a406a4c17878b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZFZ62170768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcc41526fab4f492f5f5e3dd9cebf7630e87e642a1fd8d8bb1b8ce644f470b6. 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/QZFZ22293006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45700a542de214efc56d19344f1608e96e8c78c4cc7c465f495d35631da9bcfc. 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/QZFZ22293007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363913ed8d4e7e5fc39be7c20709488b0a4da0d3624fe10fcb00ed054406244e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZFZ41970005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5272e765cadcd3db1fe87718296eb35263d73ff93230cd5ae7abae83f556868. 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/QZNWZ2098239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a68996220dfd24af38a42a964b56b0038df28f23230458595547e9feae7b3bc. 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/QZNWZ2098240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444a4ab008699796725d5ce4377cbef542c4542f10e2c81bf65d9889ec30bfee. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZNWZ2098241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe325334526c579a8ae101c3067c5255d7e429bb7142470fc53f29218adb2535e. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZNWT2074188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0909dc268162c23fd11b010a677f1d64e2b94bd8676c1a4dadf8ccbb181bb2. 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/QZNWT2074190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d37ad3259365b4e7f1b4f83224e175841ece9dc77aa43f566dd772d9f03d99. 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/QZNWT2074192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810a50fc82052fa52f05732d4cc16081b11e921edf04fa94df301a7df98041f6. 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/QZFZ42022552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5346f7c47d0d71442bae594017ad450d86a63bef0747ef300bf30cd2377a9bd. 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/QZFZ42022554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc13b06a556bd763111c78395523cf0e03a25a546555dd515d4e12620490b1. 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/QZNWS2018564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc9a702648502292d1746388e0a1d0302e1fd0f09e19132401e253572868a85. 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/QZK6N2338628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcde7b7c2741e350998d17f3ce51b751955610a3d7933729e6d70f0c9ff96a8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZES82273450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f348c555cf558a224b5526cdd95212ce16fe187f8d22f08d10ee6aabc697e5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZPLR2033880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c2d5c86ee03f89a2457c31401f2a213c08ca90956424955879375faad1ef33. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZPLR2033881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc16b1a20f4fb44c5b499801dbc0bd60fe6c9cdcbf2c0097419e2c91915d8af9. 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/QZNWX2021230.