Kalben Sağdıç (born 17 January 1986), known mononymously as Kalben, is a Turkish singer-songwriter. Life and career Kalben, who started to become interested in music by playing her mother's keyboar
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 0x8ef4c8647204b9b4484383fed28010808f4864ebb71ef76c0ebf7e0931ee530b. 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/fce09f8e-62e8-4f7c-861f-b55ca9a5f617.json and https://artists.proofprofile.net/proofs/artist/fce09f8e-62e8-4f7c-861f-b55ca9a5f617.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 0x4f82031a25282c1bfb104de32a7d79b4453ea169b9e20edd89d6bce9dbcf26d3. 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/FR10S2202574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0697c0c602c01051f9c36cec9fe9a63bb5ba981e21e3d4dcf3fedd89bc2be5f4. 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/TRBDY2237219.
Ben Uyurken Tut Beni - 2020 Model: Murathan Mungan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ef2bb6b59673ad7203fbd567c3a7874b8780b03f8499a838c26bff806721b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TRBDY2020720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd86dfa859e4ff7fe511d480e3a0f602207b851e0b3a6b83f4ce82fd820148e. 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/TR5461800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817d7e25662f56fc91a56d3c3de2f6b61d4adf96e7cc1827d6dc0da0bc9651e1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TRBPD2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e786d28b185039543f9b1800535d21f80570f03ac7dff70faa7c2d5272ec337. 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/TCAFW2117818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7397910f607f64706adfb8b724f1e53b2794b3f9d5d30de98a7501526dc649b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TR0011600675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387a65eefbd39d635e335d35b724e533ee369638e642b2a206d0eb528ade76c7. 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/TRBBC2400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf013eb64ff7182e4aeda02c6553e82054dd772d49bdd5d63e65aeeb9c38a1c52. 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/QMBZ92332716.