Hepsi was a Turkish girl group. They consisted of Eren Bakıcı, Cemre Kemer and Yasemin Yürük, and formerly of Gülçin Ergül, who left in 2009. Cemre Kemer's mother is a famous manager, Şebnem Özberk. W
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 0x27c2f9047e06ade5514ff2aa7177915cd2a6a6a2b9054092c220da43c4949f33. 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/003df283-fe50-4334-b78b-0e2fe34fcd96.json and https://artists.proofprofile.net/proofs/artist/003df283-fe50-4334-b78b-0e2fe34fcd96.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 0x88b1a5a34cf9610c2571b8b27f7b080a41cdfe720a3cd368e9e341055e98eacf. 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/FR6V81748918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebf6150ac933356297e9f5df91edd91204fc4c7169259bb14decd2afce4c58c. 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/FR6V81748919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4539e42396cd8a766bed3ab6cf7aa206d970afc29caed57661561bdd983ae1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR6V81748920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0839e3881e1e0bdd1baf4e921db8e7c7546d9972f172eb36b0c4e73073bc023e. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/FR6V81748922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43831097c4e3e795fdde6ed1dff3dd1077cb6f9c8b900da88585ca44c711b70. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/FR6V81748923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b1a5a34cf9610c2571b8b27f7b080a41cdfe720a3cd368e9e341055e98eacf. 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/FR6V81748918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0839e3881e1e0bdd1baf4e921db8e7c7546d9972f172eb36b0c4e73073bc023e. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/FR6V81748922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7ee5d872ca296b304fc9a80fdc320a17758888ce83d840fc2e00867e606fd7. 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/FR6V81748926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6dcbafd31a9f3ce87c6ffa2e2590e7f1bc2703243adfcbe7b0761c853bf918. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/FR6V82703993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fac568658c1fdef226cef5e974733a9aff718cbb2baf70e6d38c82eb29290c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR6V82703994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff82606e7c2e6155c99bf82c096e53971c27c83ad3e2175828961d3237a8eb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR6V82703995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b89e3e5fda4a99b7a1d9fb8ceed8a18af241caca6ab531702db802da0004490. 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/FR6V82703998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55b67af2c902c30ba4474634105fe006406a78cf8b178db5d89592ffa388ebe. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR6V82703999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6e282649d86fe91ec58cb07b37e9c789c00fa4a53d43afdf98ec14aea8b1cc. 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/FR6V82704000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef99f1e4385831ea7acfaa430740c1bb791a270e49f0f8320643c599c71c7f27. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR6V82704001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60b8d5e12b4c58665e73c83e249fb9c48aa1f8d8e8b81d27f9cd54cc7ad95ef. 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/FR6V82704003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf5b301cbdc5123b9b2d07624dce011816c933dae1f89697ae56f019a77e3a8. 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/FR6V82703797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee419d1dae4a92ae75d9517b7e129e3b53d8326c2cc08037b9587ed5f087558. 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/FR6V82703798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966e4c163b2f86bab00bc53aee3076ecdab51b9f825931b3bc0198e8b879c513. 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/FR6V82703800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1580369fc16c6384acedc97a49cab792a0b3f3eb919a19d0304d9147c2685557. 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/FR6V82703801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab3921829e7805913a595b2e912c74187f07721ceaae634230301078636857. 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/FR6V82703803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadca8eaf98e7e0a61fc57f7cb38915dcc6696bda246249e468e4e432bfd3dd69. 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/FR6V82703805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad15fe546d9b769dfda40bd5f511cfe4b03c918b1f9d5abaaed41a1c47162f0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR6V82703808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aad6c41569809a400679482dd3843e7e7439ca2ca98e016964d9373f5f1c8b1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V81748905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc182c154cf7fd839a3f3fee5989a50bb8809b63229a5e9efbc8a09679abdc83e. 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/FR6V81748908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01212590825dc5a9740de3cc74b74de87d1404a938a58dce3b9600f4a1bdfbc0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR6V81748914.