Arooj Aftab () (born 11 March 1985} is a Pakistani singer, composer, and producer. She has worked in various musical styles and idioms, including jazz and minimalism. Aftab was nominated for the Bes
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 0xf83f4d207b6fc51721061502fc90204d98346ecb34b3f4ad4fd9877c6cbc7879. 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/91aad2aa-2d69-4a9f-b1d3-996665210530.json and https://artists.proofprofile.net/proofs/artist/91aad2aa-2d69-4a9f-b1d3-996665210530.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 0x9f144e6e5e853261f0164c209554445791dd410eaeb8e05a3feb505764c38e6f. 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/QM87N1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083019269c68f1c21435d452f9c7918bfd6ae7afc45752d69f9f2d3e440f887b. 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/QM87N1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159d1eb1a45eb7168be9707aa6547b949b2fb6e00fe4ecdbb53aa47a433ad42a. 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/US7MN1800902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159d1eb1a45eb7168be9707aa6547b949b2fb6e00fe4ecdbb53aa47a433ad42a. 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/US7MN1800902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b77312bad3d20ba4258b579012bd3ecece4224fabf5e368a88f7a9eb3ecf2c3. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/US7MN1800903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc373e91ef7662e67dac8cd28409ee7cefd40e0d412268d334adc9aef1c32114f. 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/QM87N2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4219bee868024faf4216be26c89a3ec4b979a55b0149526c05750c94daaf122. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM87N2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d4c5837ee9dd74cf38094562a1a91e695e5c0a722281271c8d51b139a6086. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM87N2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0c7fd957c43508b0d5a448d555ea428a39da6523cc1caa22196c8b4ec0bf5. 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/QM87N2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaece7bb4edb1fa5728745bb2610be3f5ee87caa96fd96575bf5de753cefcbdb2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM87N2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e716da572f8a5fc20208b5343b6533470fcaf01c02c3c3911881c013c626217. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM87N2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86165977d2890b9246f8542d921bb655ec1b022e68adaa4e207f41a91235d12. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:25:53Z), 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/USUG12201931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc373e91ef7662e67dac8cd28409ee7cefd40e0d412268d334adc9aef1c32114f. 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/QM87N2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4219bee868024faf4216be26c89a3ec4b979a55b0149526c05750c94daaf122. 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/QM87N2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d4c5837ee9dd74cf38094562a1a91e695e5c0a722281271c8d51b139a6086. 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/QM87N2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0c7fd957c43508b0d5a448d555ea428a39da6523cc1caa22196c8b4ec0bf5. 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/QM87N2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaece7bb4edb1fa5728745bb2610be3f5ee87caa96fd96575bf5de753cefcbdb2. 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/QM87N2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e716da572f8a5fc20208b5343b6533470fcaf01c02c3c3911881c013c626217. 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/QM87N2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441bbfec0354265052b487f35b7e26b98fc93dc8a31044beb56049660ce6d4f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUG12200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf601c4ec546f42293091da3699afe71fca02c84205605a21c16dde9460794172. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:49:18Z), 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/USUM72301173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bef3e155dd836aff5fabecd2ef89d588ef724f3c08b517706636aff4811de9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USUG12208909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e582e118928c3b4e885cdb8e2b0eb656f25dadc1349c2bef06000d82d4dc35. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:34:38Z), 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/USUG12208910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b1ed447541f7446b9533dfe626ad7090c8e41011d20003112603359ec0f1c4. 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/USUG12302867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f1a863203009e48516f7757e6ef7b568da95adea9d6566b50a95cba6e072dc. 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/FR10S2267698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43053021fa3745fa0cd0d5727738423bd8abab850e563451a735338dac7d1b10. 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/USKRS2273316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9386d2b33b2e0da6154ec5cb6c8c7819915c7b9016c06252e263a2385bdb0e. 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/QM8K52000550.