1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xadbadf8c97c9225703ef2e4ec8656f23cf203d6ecd7ba35937ade24def78bbe5. 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/563b45d7-0d0d-44c7-82e0-0eaa31836cc7.json and https://artists.proofprofile.net/proofs/artist/563b45d7-0d0d-44c7-82e0-0eaa31836cc7.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 → block OTSBitcoinBlock must exist at that height 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 0x837a98709b70b4433a51b0154e289fdae0be9d2dde41b14a9e20be0939521d14. 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/PLF241906132.
Mój dom to moja twierdza (feat. Dobo ZDR, Murzyn, TPS, Wieszak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb4ef9436ce3107b79a27d0ea6240099a70a0eda64b80950d588ece0e850e6b. 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/PLF241705755.
Ja i mój kolega (feat. TPS, Murzyn, Dobo ZDR, Wieszak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f0e030508eeb5327f5333d45cfd733796283a976890c4dac9ebe17efc8075. 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/PLF241705756.
Łączy się w całość (feat. Wieszak, Dobo ZDR, TPS, Murzyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3f63bcc4b95424c19374ae25b29ecc2dcde0b0695852162a5e56e1025e7511. 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/PLF241705757.
Za zamkniętymi drzwiami (feat. Dobo ZDR, Wieszak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcbe4c1a05c7d930fc6552b168de43b21e1d8dd0db5054f1ec49b070c009ab2. 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/PLF241705760.
Mam do kogo wracać (feat. TPS, Marlena Patynko, Dobo ZDR, Wieszak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471bd3b35e22a102f44aef5d5e203afcd8a290546f8ee1195e8990e88732c648. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLF241705762.
To nas chce ulica 2 (feat. Murzyn, TPS, Arczi $zajka, Dudek P56, Wieszak, Nizioł, Kaczy, Kafar Dix37, Rest Dixon37)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d23bf7180b83b5c67de111dd5e2aac3d681d6860a6b1f6e0bc9decbdb386e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLF241705764.
Zmęczony (feat. Wieszak, TPS, Boro, Areczek PRG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf32d454e0d31d48306c59971722b74fb6b69ee719e859920c7f9dd2df0cb4a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLF241705765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad1150893b289c0ccd90c0e34d6a3c995d32f6528e88e42acc7800fbcf072de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLF241705766.
Tromfa bije moja karta (feat. TPS, Jav, Wieszak, Murzyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e170f8095757a20844492e36da65f867ce9792fa7c18cba87449cca3e3e2875. 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/PLF241705767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521109dbbf47147ddaefb4a07475094df652ccfa92ac1b3767181b6a68931259. 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/PLF241705769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea9aee4299dc38e73ac136094b5071f0e839ebc8977c494e74e89d4ca01af59. 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/PLS351600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502635b308a3eba660a9311e6005bad462e31e95c6a1e0beb1cc686f6c14adbe. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLU941800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce16afb1a3a78434380c155ba7333150bb760ebfd849bd1e31f9d4b896f410d0. 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/PLS351600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837a98709b70b4433a51b0154e289fdae0be9d2dde41b14a9e20be0939521d14. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PLF241906132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba43726de5651309380978c77d63089ae8845937ad9261b202492e6b930e2da0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PLC062405170.