Mustafa Er (born 11 January 1980) is a Turkish football coach and former player. Professional career A youth academy product of Bursaspor, Mustafa made his professional debut for Bursaspor in a 5-2 S
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 0x2046bde3f76ba08e980eeff0abc4025e781e8467ab6d1b5db85c11bc29f1defe. 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/b377edd9-f891-4c73-8541-b3ac9f7019d9.json and https://artists.proofprofile.net/proofs/artist/b377edd9-f891-4c73-8541-b3ac9f7019d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Su Yolunda / Emirdağ Türküleri ve Kaşık Havaları
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 0x45e7486ed6748c8911d495e5aa561b0ca5e93cdaebfd6e7c2028770aa13bcd2d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR3951100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b19eeb19cc73044a764ea06eabfe9869c6d159c8853c49da3cf30120c3d4d55. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TR3951100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e5199af382dd6a3e7eccbb1e5f1cfcb7507848b5cc5209944dc3e00426f412. 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/TR3951100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b687c4d791170ca1cfad41da4f6b7fa71e804797b567b60cfb53f02560e5eb. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TR3951100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5b817687b475e7c5fb119bca7b8fedfd88bc67c8045f1bee4ed8c58e10637a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:59:30Z), 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/TR3951100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd9baf0ca278316577b1dc89c11e94b7260bd464bc840d75349019ed3e7529. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TR3951100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4274e17801f4187f384307fd3a75522faae9ba1af95b5c351bd0fc16416ff12e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TR3951100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada5d389a5dbd57b82fa30ce6852f808a28ed8174a5ea1aa957b47e90dfa24e. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/TR3951100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a327c8a2941780e39a9ffcada3d24eee69c3b162b111255a7a7474899954fc. 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/TR3951100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fd245977833ad44d8bbf44ba2b5da782f06afd6f020fd40b019d77f3d837ad. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:20:37Z), 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/TR3951100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aa7802d993b5c0268e20f4d27e0a71a926d1aacd8152985b393ba4045798dd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6P42041736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2838ccecc8e176800818a01591f60b30d5380bab18bb9ebccaa30cb8ddc0463. 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/DGA062213618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7f771746200c90c1b9b54ef2d947599d034e182e52582ed128a32d34629c5. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:25:42Z), 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/DGA052241337.
Kerpiç Binalar - Davulga Diyorlar Taşlık Değil Mi?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fe3afd1945b3e70f794645694050fad65bed7d643a7f8170b21dda5e5ed7ac. 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/TCAHK2331947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e78b19c18a37746759eca3e9bad605a2ca9ef278ae2e9c65417dd636ef92e5a. 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/TCAHK2333091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed93d783be93c6c7710c5c49d858bfc4d0e9bce7dc13d701cbbc8cf3c8bd635. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCAHK2357749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161309dc63dac2e1052a84bc19b2a34622aeadae2e4f3cffbc9e6c2fe29a8534. 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/TCAHK2357626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bebee5ae2f4294c579d9b9fc345ece4bc5f05c6f8ca3c9a4123bab2f22d76f5. 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/FRX202513063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d6d0bc7cafada849eceab6f6c9fabed5ae2513ca9d8d7ad3cd2138c59cb330. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:30:02Z), 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/FRX282514915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcf8477a4e8fc0654c7ed2bfd2a597887787c397af67c69209f44d3150df56f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX282514916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8084a29f869145c8575f6ae2ac68d03c67f47be4fb6dae2329ee1204bc3b70c0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX282514918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7af55c0f742e59e960b329a4d2f410f4c68e91404e0f348e3fdde392120b5. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:13:03Z), 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/FRX282514919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c3c429530b51290aa905b062ee143a96921c99c79b8a976f88a88710d669f2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX282514920.