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 0x25c5fca9ac097e563e772844d95355d765f7f2ffba986c17fc78d04f7185ff71. 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/2c84a2ad-3c88-496e-bd9d-3ceb35017f2c.json and https://artists.proofprofile.net/proofs/artist/2c84a2ad-3c88-496e-bd9d-3ceb35017f2c.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 0x12f771cb1d9058d18b8b7ac9edf589fb23b0c9ba7d89e6f2a8cc819cc21753e1. 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/DEEQ82200038.
So ein schöner Tag (Fliegerlied) [Reloaded]
So ein schöner Tag (Fliegerlied) - Reloaded
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981606c4aeb298fc290e090f2545a273b50559789441cf7ccf1ce521f4985391. 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/DEEQ82400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce9e4b2609a7c31525fcb2f49ddda13e83c20a724fc2b712e77887bb8990f88. 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/DEEQ82400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1eb1e5caeb336f4c888a804321fd631e9721b6cc7e01c3ffdba39be81cc854. 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/DEEQ82400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0696578482ababe42d3534cd1b7e20ae9d0fd8c76ffe7dcbbd22ca4ce445ab18. 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/DEEQ82300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d466c801792b20115da9536995c89d79c7117c50218566d847b938ccec5f3f. 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/DEEQ82300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ba308f010933f848dc8b75024ebcd9d40df568f742eadf3b285c82f6192840. 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/DEEQ82200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b621e1f8728bdcc206918c6ce4a78c451b3f4698d12f06c2d338f64f4a755e5. 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/DEEQ82200007.
Inselverbot / Henri Henrisson/ Wir sind alle gestört aber geil (Tims Top Titel)
Inselverbot / Henri Henrisson / Wir sind alle gestört aber geil - Tims Top Titel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb612a794272c24d5144746f4d0f115b9e3fd2c9bf055ff679425cf25188195c. 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/DEEQ82100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf9a8ae7228e15bcf6621b9e827c9042e267ef5a38e45ba7cc0e6823e42bb42. 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/DEEQ82000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22d2db8db55d7df3e21713557098546a322defeba70a5f92525b494ff83f283. 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/DEEQ82000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f81422961ea926351ced82078154d46c8444dccc447a0f3beb2f744bf78036. 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/DEEQ82000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf133ca775062c456858307a66f53de2160da8d691c8cc04766b8eaedcd65d6. 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/DEEQ81900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5013522ffb83420b720d1352dd0dcb48b96860dcd508ff6486e3221e19d3efc5. 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/DEEQ81800157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2669161713c531cffc13c98b205c73c1e1d9313446fd3bd84824b0331bf2c421. 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/DEEQ81800091.
Ich liebe Dich (Obwohl Du....) [feat. Frenzy Blitz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d387b055721a58b8f05093470f51efd948fbd064beeeb8785a905784486511. 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/DEEQ81700133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8385ba6a7f3370446c0e4f020fc4388212aeaa4bcf2ffaad1bfc6356d2944ee7. 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/DEHM81600499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958ed9d5fc6cab0ce22d5e7bc8b729be85ebe68df30035cadd484af2b19a01f. 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/DEEQ81700002.
Nein nein nein nein sind wir nicht gewesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49948b8774e9af187be988fbf70819c52fde62aee0051506b45ed3b7f0f3714. 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/DEEQ81500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883b2fdf840c4166fd720055d3154e1c71b20156243eed9e6606e97b5c037054. 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/DEN061301626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1522e18bbfe013e04e6ed3818985785fcbe365539f613f0959d4b0e8d984e2f5. 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/DEZ521200106.
Ich sing e Leed för Dich (Kölsche Version von "I sing a Liad für di")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d35cf7c4fabaf720090cf7bf56c70bbea31674a6079129a5dd309032a17457. 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/DEEQ82400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269136b542cd89fdbb42f9f9e7aa71386c7d822050af793d8af61f29f4b3d44. 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/DEEQ82100043.