Gülçin Ergül (born 30 October 1985) is a Turkish singer, songwriter, composer, dancer, choreographer, actress, and yin yoga teacher. Life and career 1985–2004: Early years and education Ergül started
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 0x54e20ddad423794d9890353cd9f31924ca90c4b4e35dd2511436ed57d4c36906. 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/085a9955-8fcb-4af4-8751-42125dd5962e.json and https://artists.proofprofile.net/proofs/artist/085a9955-8fcb-4af4-8751-42125dd5962e.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 0x5f06da53c44c92b1526727f7398f22cf5d4a2e965f4710ca34b438b701d8404b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TR0531002425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd949cd70ce2a9e6eae156b5848dad48ab27831a3730b7d5de316eb313076ac. 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/TR0531002427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c74f6d6902f6f2eb122be4765d0bc18ad756c77a35ca1d0c76e33ecac9cbd4. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TR7801500470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9101aa5ce871944e8aa3d2b0f587fb665c4670da68c6c674bf31ba57766988. 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/TR7802200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13b507617370ed405b306effb429cca7b8288ebaf087500247330bf9e9e2b78. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TR7801500469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215b7cc58505cc9797c378386854f4794828c887be4d5b921d9703342826dc32. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TR7801500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece9fedf252f9fda50427c4f354a56344bade0c64332f636c352826c46dba6fd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TR7801600550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd8f7a06a51111062bd90ce7f337fc4381bbaea517ebe752dcd55c5cf261df3. 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/TR7801800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0134bae8885eb00a669e0d81bb6de7c698fa68466995154b96330f90ff213f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TR7801800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc625083e7529a23db5cab167b8fecf9cc219e7002d0e56ea941730bf33406307. 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/TR7801800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22df84b4b3bbea5dfb2fdb935cfa297a3917dc1119a71999fb64c6d741a816b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/TR7801800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a8c94ff4e9ba6efabd973738cb3139c42aef1f75f596a425d9777aaa69972. 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/TR7801800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628d61db25be3f0fe611ba4d070404ec8a6c341ec3880805c8f2a4ce78278e2e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TR7801800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93ba4cd7141d7fb039bd7d37d6bc97851fb2aea08688e6add7cff7b0358ecd8. 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/TR7801900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b55a78e879fd93c243ddbe843c4b7979112b7600e30ed826dfe3f6bd3f98e5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/TR7802000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d878d9eb7fdab3eec93ec78ea673c5b213ded5fd5d84b8342acb1322d483d3f. 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/TR7802000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fac7aa1f1c54a1a78bb69b849798b4bbacc690c92514d937d46601009dfdca. 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/FRX872176881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abe47d37bc42ae281f6c517dd25cde24c9bff3600b7233fdc1710b8555ab0dc. 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/TR0012300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ab0647b972dfad133307e90f80db68f8e31923e664dbc1074a787e0c4677e8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAHN2339258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bd0d6633327b39ccf5e4dee219dee8819cc313a40105a36af866ac4935d810. 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/TCAHU2486245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9249ea43f897efe3a46c3e718f04492fda03a1ded8dfde6f4adc0ec1d6b44d44. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCAIE2417311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895efc262efa549ba074928711a08c6661129bdb777fd9416d7d9198655b6ce1. 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/TR0441618905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d878d9eb7fdab3eec93ec78ea673c5b213ded5fd5d84b8342acb1322d483d3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TR7802000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567954bcda6314b39d916d4f9e29e05ee61eb65639f720527d39f05152c0cb19. 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/TR7801700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9682799241a684af46936a10fb6d70c9bc4e4e001676f0439470cb902b1ef5ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR7801700199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247c145290983ba814ccc40ccdee29d1a4c7b8cfadbf95fab43c14de6cd9d16d. 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/TR7801600607.