Rutger Hoedemaekers (born 1976) is a Dutch composer and producer. Career Early life and career Hoedemaekers' interest in music was first sparked when he started making electronic compositions on
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 0x20aed3895be5144ad41f454de91503b4c1d678e46738a57294415b3e31471e5f. 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/67cc3b7e-ba76-4ddf-bc7e-0775fb5c9c52.json and https://artists.proofprofile.net/proofs/artist/67cc3b7e-ba76-4ddf-bc7e-0775fb5c9c52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Last Berliner (Original Motion Picture Soundtrack)
No Man's Land (Original Television Series Soundtrack)
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 0xb5b9bd5381834cc43707ae9c239dd9407af9de11e69072ca6e05f4fbd7b01e66. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBDCA2003736.
Shangri-La, Paradise Under Construction (Original Motion Picture Soundtrack)
Moresnet (Original Television Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e4706fc10b6549e90e4f51b9233884bbe4e618cf4b131813d47db449c69b6c. 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/DEN961803530.
The Mercy (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3377a1fc6b3b888fa52233a7584ec96820e9405f628a0a036d769bb8a1d10c. 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/DEN961730402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939bc91365559035f8b1187bd20c8648dcc3435a8c233f1f2e11b17949b1cfa8. 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/DEN961730404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4674ff183ecf4c5e58e5751c4fad3a2fae93e0d850187a62139cc68108807. 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/DEN961730408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3ae8cf7dfa2d93bc548ac55e8c74099d9224cb510a74bb36d950029e3df79a. 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/DEN961730412.
Trapped (Original Television Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8113e2a1d59fe743f60f8af64d20d27771290975da20546a2060ca92b00d8127. 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/US5941410865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9ff43fddcc3aa80540564680b2b229cfc18f2ec54390f8d3b1a2e6dae817a3. 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/US5941410866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5626d7fd3d131fd219ad6c84631669f21a8e0ca6442b5001cbf0af91cb4ee200. 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/US5941410867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b81326e1f8b57c6ec492c1f34e7c24cb2228f319fa62e2d80b88e5829a249c. 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/US5941410868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576f0c5aa0187fce74141bc074b1da620bd20ccd36c04b58989a5325a7b3d83. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US5941410869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac94f1213a0cc353b2c2b8133f61af0bb1190529eea776a8bbef48c5671a5cc8. 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/US5941410870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6b50b0599c91526d124109c5761760be5735e70a2c25f94f04adba582d1d0a. 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/US5941410872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae89eb7f4cb29a186052239fe85c4bb0e5681497e21c59d6bab82c396e28862. 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/US5941410873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb786d93cb14fe3778dbb0436119a0be1bc7533b32386fcac017bfafdaa3f93a8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US5941410874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee81675179465bc7e79eaa259d921f8a459d9962a8b2253f0a5611c2f7dda83. 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/US5941410875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a37655e83c842836eb10d397af71c30c21eb9c99fb922aca64ce7d814a14631. 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/US5941410876.
At 19°41'10.40 North 79°52'37.83 West, Lies The Shadow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd64313d77fca66b635ac66dd16301259980cabf61163fe90fe560e9f8b52143. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEN961730413.
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 0x4dcadd3b810879d9ff12d7aa6da3f652aef35fb10e135970bf47c6424c88a444. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US5941410871.