Nübel (; ) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany. References Category:Municipalities in Schleswig-Holstein Category:Schleswig-Flensburg
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 0x14f61ca1a0d2f192836d5f5305841fd757c470f43a57cbff10ca28c00b5bfb1a. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/536dd48b-9e23-4065-b0b6-c145fdc6bbfc.json and https://artists.proofprofile.net/proofs/artist/536dd48b-9e23-4065-b0b6-c145fdc6bbfc.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 0x01b273e874b60b2d2182955649e3dd4e26c474fdba91c83f5e437a4fbd46caf2. 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/QMANG2208685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8f8e0b43fbaeddb48533f77744e0ce23f937fe5ed86e670d04d00c2632fe54. 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/QM3DF2253744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643cbc0051c622548d21a1d362b65113ae702a8de2393df700c43ec004a16d86. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QM3DF2252627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb652036ec2d877731a1ea859fc2166eed522dd413a66e7135d433543f257c827. 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/QM3DF2215126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a80875eb234fcd64b3f7f03c5d59b3c8e2c34403d1faa4c5b27cdd8efa41ca. 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/USANG2288047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e16c6aa259a611615841a570c12a4d839033998938a19904995e4e54519b9e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DGA092380477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2985e52c7054b328fb9a9312f2d3e8a14df1bc1296c8d16cac225decf66540. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA082375635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6080171cc1fc528238d72406c5440e91f738a25245f303bb82d28d30932962. 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/DGA052327386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2642dc1303dace6e52c7864ccbb2826a86ad30ce905f65ea600a9b595165e712. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DGA072314653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea76485fd3cf8e3cb7c1f58bca3de3aeed74a68bc8c900b8ed38e3bf2fe4fb8b. 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/GBKPL2284419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42d9cef4dadfe645ed32781f5397c38a38060a3f0d2e7f876bc50e47e1f0830. 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/DGA062240840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd62a3f606d133dc0d6424946fc2a064482a720d95ceb4e7dcfb17cda3e54f4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX452394797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa36c248cee7db76a35b52a5e7ebfd2d7612f1f6775a00e3af282f04922d2bc3. 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/DGA0M2474132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f49c03bb6d6ccbb823bef888a51d304df6ea4706990972c7cfc1e4fcdd3945. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX282488031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf536f669457663a75c63fc66e31079a1e292a5a6772247602669c5f34745ae. 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/DGA052464363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4fedca43c4d01f600343240d314851d515917cf19c1e49de99e621d8eb2ea9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX762425007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed9a3030e4d63e911d1224c5a83038115f92fb4e88b6521c22a4a0557e2d497. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR96X2470764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab2cdc0f7711eb16a12e7ed92f5ec8a33555a2e0c2c2ad5d2534a283df8308f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA0M2474133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde763c8477e4505f2c09848a20160dbb441da8ff6101766c09a31a50b9eaad. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DGA072482988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a28fca29afc333fa2f4ba06c6f7efab2d10b9db6db6fe0a183ea8a19f5b1ff. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USANG2466951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5853a6948ee9a9091bdb97e9dce0cd5d645010f4a3c3f004ee9ce2ec8ff6b62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USANG2466950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d2efce96129852562abbcfffda1847e6f91baa2a67a239c97998d82960657a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USANG2466948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eeef5cad0229116b268d31af0b7bd3033e63682bd066a67e56d4d127ccd121. 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/USANG2435403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4e8651f9ab9631ccf4c4908046fce5f5e3882ce30bd41e850d58eeefcb4cef. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USANG2420892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe07f4177b31377d2e846a4d35392fbd4ad62530ce9f557623c9f4cb44f9647. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEH742405789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e0b6604d8901444a744f090e06ac6c2fe223695d74a7af65bad6568684eb0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2253723.