Fikri Karayel (born 7 February 1987) is a Turkish Cypriot rock singer and songwriter. Biography He was born in Zodeia, Cyprus, where he lived throughout his childhood. He was named after his grandf
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57c9878833cdab26e83edb3773fd12014350d662dc1389197168cee3ea53c17. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4acafe5-0860-41a5-9c96-12bd0aace09f.json and https://artists.proofprofile.net/proofs/artist/d4acafe5-0860-41a5-9c96-12bd0aace09f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4ce35aa370cabb63612921d3bc3276088ee4eb15bc14b8c5643828ee997ad. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TR0061400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c94fbc3880822afc926841ed57a4c27912efc1c5d0f66b68902be91f5c75e6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TR0061400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10743fa2afc764077be136f68bdd226ff74c9a41c5474a12ab809ef2d7bd690b. 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/TR0061400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a4eb50d4d7983356471ebec06d9dceb85a6cf6895e3f061568106db5352bec. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/TR0061400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33885680d8cfe3556e0a378d940446cbeecfd11bd28aa6222dcae15a71657939. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR0061400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba5ce4158cb0c0c5a99a6ad6dabb5aeb2267bf3a66b26d2927991142c7302df. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TR0061400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01f0383725834843e5b531a93b76d908674bbef9ddc6e54e6275e8aeafeb766. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR0061900153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe428159c90207c07df0912458032a59d068d3336b6102a333f1799331bd5fd1c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TR0062000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ade81e69bdb00da90f7402c5b052042be87dcc71d5a877a84488ec405888f3e. 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/TR0062100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f75fe3b8a6368ed9f787709aaeb6ad5c11cb6d6c68d7d6b52cbd7a1a5345e3d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T16:03:05Z), 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/TR0062100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2f2740bd0a1f488544641ef49d2135c33453d99750b57854255a8f2d2433b6. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:04:54Z), 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/TR0062100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2931a8a66a2fa6843b65309337ded9b6d3cbc9ac5e9de3f32d0012656f50a2be. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:23:03Z), 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/TR0062100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ade81e69bdb00da90f7402c5b052042be87dcc71d5a877a84488ec405888f3e. 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/TR0062100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e6af0c1d29a9d1b4b66ea6a27615370e84ab1f56dd5d743602bccebc64374b. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:33Z), 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/TR0062100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8a1682d98b00524d22d7d3e5e780aa0afdca46acaf0f16176c9be505bddb0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:41:23Z), 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/TR0062300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81461c98eb66517030ac3ef66c4f0c097cf77b9bef44e8fdd6cf5eda83db56fa. 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/TR0062400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9ef5492e8fc3840c7980db5fcc6dc93b29d50bf04c4f8cf69e9b0ca82d1886. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/TR0062400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc59302b90bc680e45b0daa45309f5a150e72a7d29fcc2874ed6c641521848fb. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TR0062400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d4d04bcbed14ce821f7a2815401f199cb6c61787f927f154edd5d4a9c98be. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:31:28Z), 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/TR0062400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0ccb32b903477baf3bcdad7a4a810049d7da4c902764ff84f7fd547a928f3e. 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/TR0062400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9ef5492e8fc3840c7980db5fcc6dc93b29d50bf04c4f8cf69e9b0ca82d1886. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TR0062400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a3d223c1f61948dcf280ce945c4e7d23faa9c41b4bae7c25cc79462a440da. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TR0062400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd79e44cd6f00d99dcdf8111f3be30128f8d41115b37b9d681c7103a8d9c29e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0062000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026638ce2be31c2a3c5316ba61879c3701551957fc52d8b6fbef12c2bd0e99fa. 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/TRAAH2401083.
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