De Press is a Polish-Norwegian rock band founded in Oslo in 1980. They were among the leading Norwegian new wave bands, and also gained a following in Poland. History The original De Press had the
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 0x64a6b2e0729f4e98d37cf0b4502b05c5afc0654cd8031693419e0ca735d1bd44. 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/a987d1a4-c1f1-47f0-8bac-5243ca56d05d.json and https://artists.proofprofile.net/proofs/artist/a987d1a4-c1f1-47f0-8bac-5243ca56d05d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3132ca5787f06355188b836a63e62a2e4c5ef691cc1521a25e422745f8d8c4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NOUM70500334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d2409b5e2bfa5e26c84eaa83fb5713902b2630e3c9d06db1231b7ad91657da. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:32:21Z), 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/NOUM70500336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e86e6fdf78957f7ed0396e9be395d1111796fe294547a6ab6831e1f35f8746. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:12Z), 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/NOUM71502405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64a6476a7764d325d20203938656fdb69b54fe6feabbcc3343679bf5faf5cef. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PL81M2100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2395fe615ebbb01e46c5de53f9cd7afecbbc430af3dcdc46700e8c0b96c8f53. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:42Z), 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/PL81M2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff238af4484ec71d3a3e7b0cd25eef6e8abbd8ce4ea46e8fb3b1c385bc34cd8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLB171301335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853b8b2b7a75a5d06006c7cd3872dd6610f35f2967f02d96f097da2d31eb8548. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PLB171301336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9057b6a35966376f84ea20a7033394b5753645b12b20fbe538e6fef7b7c15ca7. 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/PLB171301340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffc37cd60cc971ab1b48a1f6696759dcebbe7e3942cd867609b898335847ebd. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:27:16Z), 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/NOL862427070.
Harnaś już nie żyje (The Leader is Dead)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd9d0598f7c3fa9757b0ecdd3ab7f9ab2a678f647c0bcf305f469c0420854d0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NOL862427010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c428f2da95e4ebd034dc129317ffac8bf56d146cb0ef198bcd4f883f18d4871. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NOL862427020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5180698cd2b7eac2a21c61c9939d21dbf3338706519efb84cd9c03da22b6877b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/NOL862427030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1583d4228730476825211f92b89055c71428d6de7de1dfbed1144f3c5e7ab4fd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOL862427040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4035ae4b5c57dc91cc544f3dca93f4f8b423586ecbfc529f6daa823d1cccf5e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NOL862427050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd79d9bab228c406221f51062034523b55987a49f986cf2fb8022f4729d4ff07. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NOL862427060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffc37cd60cc971ab1b48a1f6696759dcebbe7e3942cd867609b898335847ebd. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:42:16Z), 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/NOL862427070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc8728c27153972337e3c2a4b00c1b189656adeca47f9b68632b762ef0688f2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NOL862427080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c26d59cd4fb4667a3b92d217662e9a022cb55e7ecb7ff606af78d28bf2b4e5. 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/NOL862427090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c64055f6994825934b48f5877ead1bfe81ac753541fc1d9151e3b216d40618e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NOL862427110.