01099 (, ) is a German rap group from Dresden. The name refers to the postal code of Äußere Neustadt (01099), the area of the city the rappers are from. The group consists of four members: Dani, Gust
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 0xb4e8c369bcea8034ef408fec2dfb90fad86ea18152cb7a736c134e27a0fd0cd2. 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/5b69adf9-6618-429d-8970-4f485375487e.json and https://artists.proofprofile.net/proofs/artist/5b69adf9-6618-429d-8970-4f485375487e.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 0xfd8c60fb95bfdc2a3e706fb2decce465b0ec4aa19f403df58ef27e83f0a99ad3. 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/DEQ022152051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d7220da5d1d03b9d4f480a597272893509b5074db304ccf7ed505a7ebab77b. 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/DE1FB2400562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539e2ed8a4fa557f6d932e47db798d044127e52a2fbe804994b5bd86b4780681. 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/QZNWV2080262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b128941ba3a396fc6ec5642a4b6fac8712e685d3e91c15e465a2b5cf895a04e. 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/DE1GM2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa430756f370f4fffc7154903e30a07e92f9638ce742e79426b5a3725b6abad8a. 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/DE1GM2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b128941ba3a396fc6ec5642a4b6fac8712e685d3e91c15e465a2b5cf895a04e. 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/DE1GM2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5edacb9fec9f3d0688b95a044b5374f51e1501b6250371bb68f7f39dde9447. 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/DE1GM2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac2fa615546a9ec4b4942caf6d4b98f750f52597f34a960bc7fc75c3aa35f1b. 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/DE1GM2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0b884a5f3b0d8535d5dffd71c9a8f896787d0fe043988b20bb20c16bedbd7d. 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/DE1GM2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd974d7ee3335414f82962e4b4c6fab8527ec78bfc16a10a93694dcc37abc4d. 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/DE1GM2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1edc8665f95c5f409829dd6bc54aa7d72e44072b1c3186ac97efc1fd953b07. 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/DE1GM2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278639b83974c711ad3a73cfbddba3af945a5d065768f8cf5e2d5f0fc7741b0f. 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/DE1GM2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1376d027f8f3130f387e0163ca5c53c9b49cf3d92f860eb0d7366f2d6efc1031. 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/DE1GM2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491cefc4abbbdf87a948001e9f560537ac469891a53a312b5dde5bf4eb819737. 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/DE1GM2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b2841116451248ad9a70e748cf3414d1164868f13121a5b42d1759c2fa2286. 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/DE1GM2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ec5f7eeb3d1ac4f047d299f64514a8fde376d4f187bf79a35c1db14915359. 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/DE1FB2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8fa441f1d8279236efaabb1d3e6bac6971b2abe3ad95f8c9230fdab61c050f. 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/DE1GM2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3655f22196640741c30402fc48de0c595c750b7d2ef45d0a6359ab290508ced. 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/DE1GM2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf148d658d1d19d145e11c638832884a8d76232104526dec6f89e233bf887ad05. 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/DE1GM2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278639b83974c711ad3a73cfbddba3af945a5d065768f8cf5e2d5f0fc7741b0f. 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/DE1GM2200025.