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 0xa8159669a96f69fe5172c84841703109313d443d5479e73f45b4874da93c315a. 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/3f312684-2d1d-40c1-ab76-9ff8099c0cc1.json and https://artists.proofprofile.net/proofs/artist/3f312684-2d1d-40c1-ab76-9ff8099c0cc1.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 0xc7cb6dd6f6873f5e3118ef20ac408bad8177fbb49c6c8aee514b5abaa3c13d92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEBL60605610.
Soldier Of Fortune 2.1 - DJ Schwede Reloaded Version 2.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3371968f27d6aca5a77ca5f0a0826f5a4703d022da3ed0136db0ba10cecee1f4. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ATR980009789.
DJ Schwede - Ihre Bestellung bitte - Refreshed Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6451348a03a0d067a28aed75f4aa5acc98337b2fa5b2f3bd9cfa1f3257513fb. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEPI82314607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b6c38ae86954d15ff1c8cbc4d873bef968a651460a5f74b19329466995dfb3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82408949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb03399aba035109bb6138e5a100fd9c78976bcf39ecd5d8b273116262121808. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEPI82408950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0468e0f3552d9723076e99f8718af64dd7a94c9b10f332f9811941b9fe96497f. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/DEPI82414478.
Soldier of Fortune - Original DJ Schwede Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94488511954ed7f1711cfb38f5fc91696f91b8e94517ce7a9722cb1cc07e3e9a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEPI82414479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144a34bdfbde975b1d762079a1bb2ac86615877cf553da7046008e2131c6a855. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEPI82414247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1637de718f0f377d1af815286efdf4a20ac76173b9a8a2fc7385d27561b3fde. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEPI82436161.
Am Tag als Conny Kramer starb (Techno Version)
Am Tag als Conny Kramer starb - Techno Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290e4230e917d67ec4e9ceaf58ee770b3dba24cc3c649445701849b83fab3c42. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEPI82442926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcd848dad324d846649e731de7ac14ea17365e1e31333dab4bac281455d6862. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEPI82446733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868e769fdad4ed44b83621100b1ab9899448bde3a549df39d72751c265017512. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/DEPI82505573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2552a536c8f64117e298ecc481d03459d17db96b7a40a4e0358170a4d27e047b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEPI82508776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302eaec0abf552e759178d92381dc1c88c1777d5de71ae9a5d54e2788c4770d8. 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/AUXN21201458.