Huda may refer to: People with the name Huda (given name), an index of people with the given name Huda (surname), an index of people with the surname Entities with the name Haryana Urban De
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 0x4feaec84411aa5aca442ac8f22c990e72f63e2d9246daf7b6d69b1335cbd8083. 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/1ae9b55a-4d49-4c6b-ba0e-c343e927d41a.json and https://artists.proofprofile.net/proofs/artist/1ae9b55a-4d49-4c6b-ba0e-c343e927d41a.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 0x33ea1db4af187423b48a1fef6553631b983540d40d4f22241c4e47d5b1641bea. 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/QZHN42077150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b0478bc7fda0d34ff1340a812eeeeb4035e413a8ecda1b8c6f6c0e4b990edf. 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/QZHN32128393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bea289cf01f105abbbbe71a70a6770553f8f2c3e0cff8b2642bae4cfde75ebf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWS2183306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9fbd13136beded8f977c2cef8d8fa0ea8807656e9173985e51a3393068b1aa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFYX2278215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb18a3c9f201437fd107274ef3b9331a1468b03cda443dbd270889722fc49fe. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/DGA082272268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696df2ec9751af996ada26daf39d386fb95376857ef9327e3f2cccfac0a87b2c. 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/FRX452302511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73decda5b0b09d2e23a5fbf9771b7afb19609a1a22404ef259a2d46762d6e85. 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/QMFMG2375777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d127997397bb17cb527ffc8f0f4370ac16ddf56ff6f1fdb50b1592107ecd185. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMFMG2375778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637e2da875e70e513cd888c6a1743d286cdecf68a232976533fcdbba5e8f4e40. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QM6N22453454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1454edc7a884afa03eccfe7d62cd4856b1a52787f1c1d027be23a1a7045514. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM6N22453455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63478544c16991a54db611d232eeba61c2b48dad8b9d18214d7a1b659c5077ba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM6N22453456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6655e286e875a1b3c212949609c32786cba47eab28c47e300c28348433e77a. 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/QM6N22453457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f749e4e3a1028aac8de85b3db8e5c51b01e4f57b08cb4fd8b301bde30e9908. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM4TX2488740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d8703438d88bb46da5fcfc5862e40de2cba984a738e76d4b8b6ce76e3dddb2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM6N22429021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8516042967eb574ae0f71fba26061fd282b17cc9b408cd314acd54a1cc7363. 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/QM6N22453460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b0f1110be9578978a380bc09d07a7e15dd5c1652806a4164a0ced37cf78c14. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM6N22453461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f96ddb2dc0de481b5c04b1fdb12f551bf3d2e09e88919fd7c83be708419eb5. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QM6MZ2443030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422ad5d4ba6791f58ba61e75711bcd32409a5ffd18c8025ce074741f1b1e1f9f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6N22453463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed594b7b9b3c2ac97d80d32040db4025f3bcb8f33a189e107071dd5d4499335. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QM6N22453464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863bc12e5b68449ffbce413210a62151c367d6facc14556bbee670adef5043e2. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QM6N22453465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb6a23b33530306fa9a332e4c45e7acd19a1fbe14a1b8a3dabaf41b12fd7172. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZK6N2033827.