Koelle is a German surname. It may refer to: Fritz Koelle (1895–1953), German sculptor Heinz-Hermann Koelle (1925–2011), German aerospace engineer and pilot Johann Ludwig Christian Koelle (1763–1797)
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 0x9c20f80f48298204f1d5607ce6e0719848332c3f2493a4a129835bbc825cfcec. 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/cf8b8776-63c6-4715-83e6-9d4b6fa12232.json and https://artists.proofprofile.net/proofs/artist/cf8b8776-63c6-4715-83e6-9d4b6fa12232.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 0x3c5e8e4f0cd4e0cd3b3eedcea4f0fd6c03a5f1b0a6f1a47926bfd7ae8bd1f6ce. 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/NLD682400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c76a0c2dee6dd509ddf8069c465af6024891b151d1d1e82e1cc59f242bf19. 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/NLD682303425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7366c0ee145c3f219ab0b9649a13a5af2d182b84885f8dc01a4cdb7ce1c23852. 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/NLD682304161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9869eeb603603bef8750314675e093d97adf17a2d5e634e7862e5001ea4eb3b3. 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/US83Z2351778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafe8e540eaa38553aaa7f6316f2204e3bced69b4cd2aebf5232fa28a7604871. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/NLD682301749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc690691c5053d68f7a8d544ad1a51d159a9bfed1a6f40a8572e10c49ba49cf42. 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/NLD682203410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde31e37df9ec5ec79e280cfd75e555497a6d75c7fe4ac2174ca85f273aa9c3e0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLD682203412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e717d8d5d8ce7ace591539db8caa4ed58fcbb2771cb4e1cd0a5fa212773cc7a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLD682200927.
City Lights (Westseven Pressure Room Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d294343584d708d4fed167c7173c2fc31ac43cc349d934afce24cd0d00a9c5. 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/NLD682102100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5b5aedd604079712973dfba726e4188872ebd89fc1d1839cf5ec5c85e6a2f4. 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/NLD682101279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015e5116f57a8a61eaa4ebed53edcf92e6d0bb887ebba97f12fbf8128a8bf257. 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/QZFYW2139825.
Dark Knight Of The Soul / Phoenix / Little Dreams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c290509d94c4f767f0b69d2a086c21d401819193a50ec65de066a1a8b657c8. 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/NLD682001977.
Group Therapy 300 Live from Hong Kong - Deep Set
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f0af461a4ceca308d68ca928a1c95f47c8fbc3bc7e93228dcd8c4dc82a3654. 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/GBEWA1803002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fd5cb501ee98102f1b76be4ee2049916946552609a8bc0e0dfae4c8542dd05. 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/GBEWA1702679.