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 0x48fa2c47966166d345d9cbbe19863d9617b07915d7f74bd4ed3f08fdaa0b3eda. 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/200cd818-af0f-4bd6-a6f4-4afb7dc16bd5.json and https://artists.proofprofile.net/proofs/artist/200cd818-af0f-4bd6-a6f4-4afb7dc16bd5.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 0xc8cdb7338f19c31e8c47aecd716751bca835af2801cc8edf4ade4c6147b7d833. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:18:15Z), 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/DEC611100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4e8395ab2e68cb81acfef5ece8fa9c5046e5a536f2e2d116daa2948420e2df. 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/DEC711400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baa4e1d04b663c3ee2bd741c4aa968267eedfdb28288a4273120150cc24b230. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:20:45Z), 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/DEC711400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33966c287bbe260279ac410a0e448cc50dcec0f8ae8c4f8a96470dcea7710cd. 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/DEC711400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e623f466d38637a93e34fad43cc2cfde958312ea0a2cc8b7a5b40d47b46719. 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/DEC711400434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f60498a52f806b3b986060b68d50dae88df82da4f7bd21f25e84a97e28eefc. 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/DEC711400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e08c6bce67cfae995ae309659485d6387897414d4f38f07269e39705fc8cca7. 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/DEC711400439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6604d2dcc130a91a06a2a471eaa9462befff18aad0cfdb9e213145f61b1db71. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEC711400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e962011a75ab119ed11d78775bce8fd534f58fefd57f5b83a25bbd68a3e936. 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/DEC711400444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487ba0cbc06a90008427175e4a1486ddfc3fb99dd4927c469722009336d0e40f. 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/DEC711400445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0283674559847e4f9ca3707e7eff284745371431b5f128c95a9a0a21d684ae. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEC711400446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fac3e3be5c15bf95882511b49b83610e715d604230f5cf5ec80425ababa8c9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEC711400447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa427dcadf98d051589836395a0d0d9b40bfd9998f621bc2b6e713b2a7e1528b2. 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/DEC711400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f52ae28d6ec5ccae08e30ebc0f199d5bd34c43aae382fbf513a3372b4e5378d. 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/DEC711400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783838b308c3ca6e4acae8562af1ea4fd0beb8233eae1d35d3bc3dd646ca666b. 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/DEC711508417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88d96d163488060852c7f9674fb4a656958ea23c2108e34a2b675749bad2d15. 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/DEC711508418.
Wir sind die Kinder vom Süderhof - Version 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200fbd1f4099879a4fd93ba23f5477bd9b54ec4f486c1dc3003782ab56d27ebf. 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/DEC711706288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e6233a376be16d440932b2f572dc2555f2a68424a804e5b80065146f86c812. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEAR41850299.
Familien Party Kinder Disco Hits, Vol. 1 (Instrumental-Karaoke-Versionen)
Der Faultier-Song 2020 (VON KINDERN UND FAMILIEN FÜR KINDER GESUNGEN)
Familien Party Kinder Disco Hits, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf761856dc4f58f4d0174c892258c2be411dd3e15af78a3a95b639d02cf21b2. 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/DEUM72312190.
5 kleine Fische - Frank und seine Freunde Solo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86bcf6441f1fbbeffab06f145ae51b821a1587850fac2e4a9abd5e3433a1b33. 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/DEUM72307737.