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 0x7ba1950709e8da928923ecbb3d03e758f25b882a1d15603ea23fca3b793051a8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d9d6b84-f7c5-4c9f-8dc4-94ff1dd44151.json and https://artists.proofprofile.net/proofs/artist/1d9d6b84-f7c5-4c9f-8dc4-94ff1dd44151.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mój dom to moja twierdza (feat. Dobo ZDR, Murzyn, TPS, Wieszak)
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 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.
Wszyscy jesteśmy podejrzani (feat. Dobo ZDR, TPS, Wieszak, Murzyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93821018a66d21e2621465053eacc68533135c5935b2dc104354c4a1aafee7e. 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/PLF241705758.
Pieniądz w samarkach (feat. TPS, Jav, Dobo ZDR, Murzyn, Akin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b6253d3b46475287938001acb636f07d97d580ea2f9add08217b9e685b9822. 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/PLF241705759.
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.
Przeszłość w aktach zapisana (feat. TPS, Murzyn, Dobo ZDR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2aa88178a3ef8bbbbae853a89a00189bcdb298f5dbd3ebc10049cc37a6d21c. 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/PLF241705761.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d883598499ef508e00ce77ef705b069bf06a61280599337b2f9de18f8db80d8. 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/PLF241705763.
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.
Świat jest mój (feat. Big Twins, TPS, Murzyn, Dobo ZDR, Prodigy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc61ef5c5a4cde983e70b465404b22220eba915684b6140d3d891cc2711a7eb5. 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/PLF241705768.
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 0x1b3c99d2e1371593c37cf3fce1f61cfa00840e0af88116b799f6abe7cda0c9e5. 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/PLU941900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4023a95b05bc1e8b8082798aed964a971020757903aea14ffd2c5600375087. 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/PLU941900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff15805e7b0f723eec4cadf9de51fd4096062b819ab719adbcf604d0badeb37. 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/PLU941900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477d5e11ca7553a1c1fba98a959291105d2c06031ebd93fa88b7268bb7994bff. 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/PLU941900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eb942d1a0cb5bdf60a456c69064804ce9821b8fc98623b303512f0554488ec. 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/PLU941900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0215d00ecae409002e0646fd0368a9a1520f35b968070bb10be5b5bd018d976. 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/PLU941900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bfdd8c504525a4b6b8f0cc403aa78aea93d3e16a7ebbabd7e137840d875380. 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/PLU941900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca74c0feccf45d4ad8851720cc2eaf8b42761bb8b73c1323e0079be919f258a6. 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/PLU941900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd0822060ef717c98840e582aaeafff0ddd18c1182e64d51afd0e8085899d77. 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/PLU941900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705579e31f42f256b62a202adfc52e371ce9a5559ca220a747f6ca85ef448330. 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/PLU941900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4e3298f0af194f17f226a09241f58d27aecd73a787a7d8ecb8887b6d78821a. 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/PLU941900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c2e70a090c74b8b3cc41ac61d08ecccff79d3c194fade9436f0b78f18f79d0. 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/PLU941900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7023a3f19e58165e5fbe5170a64f3369954746dff77ea4ec1fe57f166abcce. 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/PLU941900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aeb2187c2b8264b1889a1345c5a75fdc3fd0a5a902a27bb4cb6c0271f5dd1c. 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/PLU941900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf55d97213309a601daba9849c3eb2ccb87d19f8b93a1b9f12afd226b3012610. 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/PLU941900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9966101ef7b7895c9cd2d094ae1413ffab2f2c52f75593bb0e3a62792a63431f. 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/PLU941900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadc273727970078a5962b61bca313d6d2f91fa4f6a51904d6cdc8f689df22c0. 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/PLU941900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415dad69d80ff8bdd336e1154258cddff043e4644270423e81fbd71e909521c8. 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/PLU941900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0b61b9e60dbf8902fcd7a9d607c2eddec15c3141fd345411e81a6bc0d40f7c. 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/PLF242210363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd6abce7e0e9d4b97ac5eff023f6397550048c8fe00b4fd1560b04fcd3b29c9. 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/PLF242210364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904cf8c87b241df5790ae52d735d5cdea7c355270f77f8326c268a0b99b6c46c. 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/PLF242210365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac981d9cdc642e630e92b8d1781121522a859a08925d229a03b5b0540fa838. 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/PLF242210367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948fe2dd39ddb7e7ebab6d2332d84910270bdcb0b79fe6cb51c70feec2c8aab8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLF242210369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d60d0a9664cdb8a301d3549c64ddae540f01123190c699be9dbf64b1a3146e. 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/PLF241704995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd893c7b9cfcf6321d7910b1e9e2d1d7851b572b95fd4854571731938c45979d1. 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/PLF241704997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b6272215b0dc987c285c387e0ea8db5f21ac602ee1043b4c29c87de30c4d9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLF242211428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf943eac79bb125446b84d15b0713f2d0b1ac7790b13bf5a1b4ffae295ab0ef. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PLF242211429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0977c5d90388c5f96b980ad9f8bf476356b47f83a8ea107ef326bc2aa7c5f206. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PL41A1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a96ec00ffbf4209b793dccceca95d5a8a12cd48cd4ce1a4cc01ff0fdbb57387. 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/PL41A1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918f76c42a71377a234c7bad931191206acc5730cb7b373d5eb8b188c5dc8ea7. 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/PL41A1800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4c05a5f141f1c0d8e6e3d79fdc8b6b5e6847137f56bbad569d7bbbca64d08f. 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/PL41A1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b75954691a813c3b7dc37667a6c8f9f67bdc05d416cad418875aa6c52f574. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PL41A1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45725b85cde1eecc2a55e38ba0cb7d34aca191687cc40aa20803b45db2e55c91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PL41A1800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f48b2bf7a3d82469b3287a3f9312f1a8069d7c60f325e1fd2c7ab7a526d70. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/PL41A1800025.
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 0x8cdbbd86194c4d88a95756542371cb1491b0c19c2b1dbcec3570bb7dd6d70b79. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PLF241704827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0700a8e777b2e97da9da630c8a2028ed47b154e5617719a5e6cd47a4dd5cac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PLF241704836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f6d68778132eb852a2b02764ba382337b3e21621d7cd5c19c8e29608be6332. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PLF241704838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b1ab3889804b84f613c5b4436616d3989911b4ea3aeeb0e233e80680ccf80b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/PLF241704835.