Marten Laciny (born 4 December 1982), better known by his stage name Marteria, is a German rapper. He has met with success in Germany (his 2012 collaboration with Yasha and Miss Platnum, "Lila Wolken"
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 0xc3a0ccb2d34d3dd85bb0ba93a6d83a17a5c7584e76901da5a9e70bb09a80822e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cdb5240-86e1-4265-a07a-795e03c4dc45.json and https://artists.proofprofile.net/proofs/artist/8cdb5240-86e1-4265-a07a-795e03c4dc45.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67be805de75fb4fcebbf08b2c903b2499ef3a2ca36e3d570a972ef3c899444b. 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/DEQ322100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45197107caaa9cebe38fdd3cbc1a50069bf3e4b48a4802370cc3593dfa4b5dcf. 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/DEQ321300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a445b16f6cb000d5c53387a97cb66d8c9ec15270e5738c6dfd85e749da79d6c. 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/DENF61800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27426734e76472d2b8c8d9ed38a2ba78e370314d20f338f517d7891e5816f720. 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/DENF61800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afd1c38070b4b5afddecd1c44d6ff06f372786e036ad2ff5b1b505ef303b1b6. 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/DENF61800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2ea9fab046dcded5fb87478c6dd195bb26b70b4b4e355d9c45d5c3e577bc6a. 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/DENF61800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd32d84915e9a79342bd87a5ee1e356879fc8c67f781de7dc570c7f9168e1f. 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/DENF61800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841ca6ac8ac20faf5a2a28619004cb56cafa82aef6135ef9f3860671dd4ed40d. 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/DENF61800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf6d228e7e57a7df6d4c56d04595ed02a251555b50365111e58d1f4ac64b030. 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/DENF61800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0386295daae04fa31c216197e81a52b23b538e5894a0df564ea95f3723434be. 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/DENF61800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabca1da33c25cac02fb22babb617a974cefdb199a868addd707f0516a9247bae. 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/DENF61800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8110a47a925ff1c4749119b57e703f8533aeafdd0014ee894523c306b11054d. 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/DENF61800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872ad0acf28b9593f5403cfd51e16abc7a3aa3c84dc612049c89af90049cb963. 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/DEQ321200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cfb1e482f28d3da4e3aae60d8662511e1cbb442f97d4e67aa146df3cdcb6fd. 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/DEDG61500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293c33b359d058c921087f1e821fa294e99fc3d74e056d422456026cd305f7f7. 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/DEF242282002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eb17eebb7378d6e8bd81a31cbe856d6849471a75874b75120e037b172e007f. 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/DEUM72000989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b61ce4e44b88e9d9ffd8ec1e55fb5050a11fafdbd314f9ed2be1e36d31dd27. 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/DEUM71403633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65cb7f3e450656acd06c82e9fef7fdac7c16e6d4209ee3db7d98c9a043bab7b. 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/DEUM71714434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf27c0a940d0db4187e40c93108114b11093b4e72822f4149937919c902a184. 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/DEYF12300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a5809d711cd379fc5be5dac1704d2c165afd4742017adeaf61c5e3ffa3a5e2. 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/DEQ021900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9d7d08a7475f3ec3a3e7cf90bcfda1dae5ca15953a2613599040355bd8b3c1. 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/DEDQ40700031.