Daniel Caplen (born 27 March 1992), also known as his stage name D/C, is a Grammy nominated , Ivor Novello winning British R&B singer, songwriter and musician based in Brixton in London. He was educa
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 0x81bcebffe62869366a26a60e736d87d77e006a55872c3752d08601518a2f3567. 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/77521a5e-7257-4fe9-b216-b83ef165bf99.json and https://artists.proofprofile.net/proofs/artist/77521a5e-7257-4fe9-b216-b83ef165bf99.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 0x8dcf4460227bc7c4438c3b0c63af89cc2336dd8d0e9060091a85a4e29af5c3e5. 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/NOUM72000604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73892f5d25f402899d69728b9e7b187adf2942cdfd91efe9eb527fe961f0bca2. 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/DGA0M2365552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf805fdce39363a2e9d02b57e0a65fce465f0b185b316d9b5c45754cf7605f4c. 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/GBAHS1800731.
Trouble (feat. Ms Banks) - One Bit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2c7aa44e1668ca365c1ea51e99e37a4f97b678fa4de789aa3d8e8d4f83d5cd. 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/GBAHS1800477.
Trouble (feat. Ms Banks) - Calyx & TeeBee Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7255a9ee4ea9c5417c0ca45be544a0c80ce90290794592dbc15fa002d6b01289. 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/GBAHS1800478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f46a75de60b07553b1db27ebcc7404670dcbf9796386782dd470dec810cecf7. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBAHS1800479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070b9ff68c8fc5c5d75bd5aa5eee865d531fffc115774ebe9ffc0d2f946a647. 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/QZ8TY1900004.
You Make Me Wanna Dance (feat. Dan Caplen)
Flat Champagne (feat. RAY BLK) [Acoustic]
Flat Champagne (feat. RAY BLK) [Jaded Remix]
These Days (feat. Jess Glynne, Macklemore & Dan Caplen)
Toast to Our Differences (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed01498132ea57ac17c73306be6e4122f6aaccaba614f2acf0870bc006a942e. 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/GBAHS1701239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3935ef24b71ad0709d9b85576cccc96b54729761c76fa2dbbf052c2a13e2bf. 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/NLF712206116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed01498132ea57ac17c73306be6e4122f6aaccaba614f2acf0870bc006a942e. 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/GBAHS1701239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcf4460227bc7c4438c3b0c63af89cc2336dd8d0e9060091a85a4e29af5c3e5. 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/NOUM72000604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6c58531b556a9045b99845eddddb13ac79e7b29eeeca78f1e1efc646149621. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/NLF712300558.