CASAR Drahtseilwerk Saar GmbH is a German manufacturer of high-performance steel wire rope founded in 1948 and based in Kirkel, Saarland. Since 2007 it has been part of WireCo, marketing special ropes
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 0x0a6c4a28139b26ea52fba5d9dc0d71705932d83e8d6f3b6b1abb10935ebec32d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/793f23d7-945d-4d4a-b3bb-ef6fbcb14e02.json and https://artists.proofprofile.net/proofs/artist/793f23d7-945d-4d4a-b3bb-ef6fbcb14e02.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 0x236569ad236b6236980bac97daa4ddf9f4ab8a43176dad8ae6019a49b399d316. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEUM71906244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29de238efeb1a4718ed19183bb1ad0b15cb460e3d242dcf0c77d7e32bf1829fd. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEUM71906617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba551617373bb8526a2bf1626bbd03e7c28146d9a8ff592fee5b23a5be0515a. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DECE72000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d601f928dbf4f1ccf839be32662151feb7ec1080919503cbde5162d5a81404b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DECE72000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff2d4428549e1eeb0107b7a8bc6fdae25bf9f064691affbc2700aedefda838. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DECE72000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190d9dc31269c7e5735575865929a584f762771523f939953b9e49b1ced3410. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DECE72000261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfc1bb224fdd55fa1065a3aa5affa3dc1659cea4975aaa0af685b31233b9c2a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DECE72000355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6808e2adff49c27f69d801f47f5a6b42c5cb87c9bffe04470e923516e9a252c. 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/DECE72000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f09ca8ce1703511d835a9d03a76b5b92fcec6e5044c4c75b5e6bfee7854bf9. 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/DECE72000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff2d4428549e1eeb0107b7a8bc6fdae25bf9f064691affbc2700aedefda838. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DECE72000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfc1bb224fdd55fa1065a3aa5affa3dc1659cea4975aaa0af685b31233b9c2a. 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/DECE72000355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2bd7ab0d69831cfc42e47e7ec0dfad095d862a536384610e167c96b671b199. 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/DECE72000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832a3a26f85245db0c922ae8d90fdc270d871d7c0ba7b54b3fe76c4e329bf34a. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/DECE72000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6befb09ef00f26a7fd6b8c68194b4ee141902a088afcc97ec3e7e414954aafef. 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/DECE72000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6808e2adff49c27f69d801f47f5a6b42c5cb87c9bffe04470e923516e9a252c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DECE72000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68289869226f5204a1c82a7e786e6a8e70bf65607081cffc2513c5726a23927a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DECE72002535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608bebf29d4c9de797c78ca4b9d4d43b42ea4046e5b8e6ddc4c14a37e11dd080. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/DECE72100099.
Roll ihn zu (feat. Juh-Dee & Young Mesh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ea3cfbb94fb203488ee6ac04b74d543d0d451f5744dc67160076450c61a11c. 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/DECE72102919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7701ba715909b5dce9de4e825f8b234ef94fd0fe1e220b81571601ea6eeebb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DECE72106125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938fc22792f96c8909611f2ff6de388a39fd325d646ecb96f396463316f6a48a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DECE72107215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242662999053e1501d1d43e0933465988de1d774eec09af2c655694fa20fb1fb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:26Z), 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/DECE72201433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fa8df2ce4590abad5cef0b4bfe2c2920ecf8e13fa98e059b9e730b3ea9397b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DECE72201714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9120779a558fce8553c2e59f87061ec70a1578e6fbc85ad03df5b6884d348d02. 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/DECE72202155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fb02c44cefa658bacaa3d96c4c14828aa94d5b9dbdc84a5d8b5c5ec65cc229. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH7812227247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588f266cf7073d5ce814571006003cd67b3ac44b5a688b158d23f26acdbb711b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH7812233195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864787082d05a811b3af42bbd6ce4b1825245c78069ebb0bdd41e97b101afad1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CH7812235053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf74efb8f28c8aabc2f47510cb53bf26877559f44ed6675dcd4bb3081e3d0c9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH7812236040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a90437d73664c9f345fc9e0f2206b0b3931a85c7c4b12d55ce246fd8a3f207. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH7812236987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654c034d7c7e4f74eb6e4ee55834ab5880b6ca420984f3d2c9edd17fc05a4a30. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH7812343645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b48fea861761ec26ad9efb85575df31bd65dac5dd47e3ec6f367703998c2f7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CH7812343646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093b588e72f0bf62e77c480e57f71b13fb2a0e75e6ff6249bcbcaacee300f003. 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/CH7812343647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a7fda04834cee40051f7207cbcb2b2b4b7205cf622bf27b1660d0d794376a. 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/CH7812343648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4752129d472b028dfbdb9f79ffbcfb8dd691d503730f83ac5ee4b07b8f472c7. 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/CH7812343649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd9634ee21db2dc95c05e5534ec03f5ee2e10367d76e2211025fa85798dc41e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH7812343650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7674e0b1154a9b642cab62672008ec353ea4d08c21a469246a33be97e47049. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CH7812346168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2455f961ef9ecb4da63b6647124fbc5467945bce458abb070f6e26ddb9a9d9. 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/DEUM71906154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b374effc0d6fcf6b53b7560f90cdf586471c72e25d4260b4272229ddf55ac8. 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/DEQ022106972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f33eff1ab16634b80cb1afbe7b1aa501d17f9a934509236ba0203e1f21b5331. 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/DEZC62285647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0012b3b2617e829a7b31bca5d349c68b2bc1571b156d8ad7591531929481d326. 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/DEKF22300223.