Anwar or Al Anwar may refer to: Anwar (name), a given name and surname (including a list of people and characters with the name) Anwar (singer) (born 1949), Indian playback singer Anwar (2007 film),
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 0xad95161c03783ef0d38e309aa12150bc23daee0347e1ce6176f098ec073ab9db. 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/0d5b3a52-ebc5-45e2-95fc-72d7dfac2ec4.json and https://artists.proofprofile.net/proofs/artist/0d5b3a52-ebc5-45e2-95fc-72d7dfac2ec4.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 0x651a9c4728982986ca7c41be7925acd83ea0dfc1ae09c4318799d5ffc2110b4f. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/FRZ051500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe258162e60eccc18c6b59422d42f2bfa68923b66b90230a6a597144848a4265a. 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/FRZ051500460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3ca0829e614626dcf0b10925e0d20f6cbd267cd4b19699805ff2000c033dbc. 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/FRZ051500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101e92e442c8d934c16ef8c3159825e36288fbf426d29107d49ddb6e524b9c1b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FRZ051500368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbf3e5679151f497e9ef3c4be1d34538eb2d63b48a8a7c8926d5df37a63fb73. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FRZ051500364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8ee1d4b84a527ba353c971465375afa4f23fd61d5e426f4b90484721bde265. 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/FR1Q02200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f36c3a6618a7e6349200cfe8eddbae5aa201adb32fc76fed83313aa118b71d4. 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/FR1Q02200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da06d460db0407e0fb8391bb6fb57d454effcb1e8180b46407ce4adb9252107. 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/FR1Q02200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da06d460db0407e0fb8391bb6fb57d454effcb1e8180b46407ce4adb9252107. 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/FR1Q02200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fe480b0b1c02eb537bb3881fc10588cbb0d0b33e1bb9bc2a97912e695cad74. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR1Q02200390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12a16be5644b90e3280c63f167a86bda04c3a6bd66c2c1cbbda2dca6798950b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR1Q02200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fe480b0b1c02eb537bb3881fc10588cbb0d0b33e1bb9bc2a97912e695cad74. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR1Q02200390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb17e2fa693956dccf0db6492bd3ff1eeb127c9972468e28ac80f7d6166d4c28. 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/FR1Q02200430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f36c3a6618a7e6349200cfe8eddbae5aa201adb32fc76fed83313aa118b71d4. 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/FR1Q02200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f36c3a6618a7e6349200cfe8eddbae5aa201adb32fc76fed83313aa118b71d4. 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/FR1Q02200040.