Nicolas Binder (born 13 January 2002) is an Austrian professional footballer who plays as a striker for Dutch club Cambuur. Career Rapid Wien Binder is a youth product of Union Mauer, and moved to t
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 0x7d1f9eaee3b8c6f1d0ab8466a02288620632bdf62e2e6f119219942cccbb812b. 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/0e758060-89c6-4aac-b9e1-d15b45d04adf.json and https://artists.proofprofile.net/proofs/artist/0e758060-89c6-4aac-b9e1-d15b45d04adf.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 0x1339a4dddfc6a9ca72e3d88e1aad5298b8bdf02c1bd856326984caafb9838846. 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/DEE862302173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f70f83234870b3950e845d09c6d64d7d7ced1ddcce6e70882d4f644afda5a. 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/DEE862301847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52e3958cdcea0b56eb8885dbd8462687081694c0dee6211c1de733dd31dc189. 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/DEE862301627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c033eaafd6cef0eec80e491484d6aead2f05a74fb1b0bbe426b2eec0ef1ce7f. 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/DEE862302084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4102e4fe9a46893675b073b7a4f61747e3639c81136e2a021ca9a7499dd6f680. 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/QZGWX2190097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373f4ae57393dc17960e8138757b5ca6476509deff80b4b1782aaadb07467056. 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/DEE862300719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00466401677453baabe983e32bb81cdb0d207cc92d5695abce587af809004391. 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/QZPJ32215150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490b67f71b9ca5378a6eedef6933dc87248713ae8631013b55f0a3ab3e4efdb5. 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/QZPJ32205230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a189e09ea888be938e3bd710d38fe73e9aeeeb9f700a0c8034077796ddb95. 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/QZPJ32191186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736a8f48de33b5191c0f782b78d9577540e17839fae0978a56629b1dbf2695db. 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/QZPJ32171178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e60a5ad97c460c7aa2d9364f61d7ba0c5446c267aed4e94cae2c379eb9a84a. 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/QZPJ32119223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578a2bdeaa99eaa416dae98c4551d88d6eb481165e5a6bc00eb15da930c0b25f. 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/QZPJ32101349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1263ba01deaae2c931c37fbfe59365803e122680650ea9b30a6260bd957ccc6e. 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/QZGWX2098430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5a831cef5e7205649f4a2fc639a128b2ff071b2d2cf90f29e6b7e84a96a586. 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/QZGWX2065453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492b11da39bbb3096e46ea67a21a3c0d51481bf1b44bf7c266597c616bf92095. 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/QZGWW2106098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c29abc3dd4d92784bf6adb0375d051ee604a5c59ed5c5ad1b7d75bcb4f2e96. 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/QZGWW2106099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cee5952ae54d47937c960fe9c9516709ca7b5a0d559da59159292b6983ee40. 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/QZGWW2106100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f3a0e5e7168f2693d19f1635963e066960c0daaa5f3c179994c642b2875110. 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/DEUM72406840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f827d17cb51a723cf4e04caa2aa1e3db0f4d15ad0f2eaa8b9cb6e08802b95e. 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/DEUM72400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8614e3bbfc0c03dca65553b59a11b5520b07da200c4fa5670de74aa85f114a. 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/DEUM72310800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c0cdbd9c20d69336584c748bf9ac15a2c2e08600d1b55d4734149abb80beae. 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/DEUM72311309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3124c36a31139923081d5abb3b54b412deb839c7286c101b56cded20b2ada872. 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/DEUM72311311.