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 0x9c1443108bb578a5727b2dd9b9754c489dc5276773ce22766a0b9c61503d641c. 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/dc59da58-b7e3-4406-84fe-02f466e3e794.json and https://artists.proofprofile.net/proofs/artist/dc59da58-b7e3-4406-84fe-02f466e3e794.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 0x23a3121080a044b3ce0e3f664f701a595ef349ef30461ee851dc1cecc6045f20. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEA811900502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47609d1e5ff57a8bb8c6f173991c3cbcb37f362204bca15634c88eab1e15ce1. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/DEA811900605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d73ac8acf32a22af86128a3ad184974ff3cdfd6c1ed4b694f8d9c865261912f. 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/NLS6R1866693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74234ab789a2c4ee08a8c9591960aa75813dadaddcbe009c3eb16376fcadf7f6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:24:13Z), 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/DEA811900596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e747890fd7ab2341177d662ff56a3be1aa05b147c386b6a8d941472f389fe. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEA811900597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065cf0f05a2c20fc0281400f59bce0e254e58ccf97825b1e3f78f49040426bd2. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/DEA811900598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb685f8627e39d789871553c0afdf26ada3967de61661c280e85c3a06a0febe18. 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/NL1AP1922132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608248a8543df0cae68f1dd956c5d2fa4dc116fa53386030663eaf0445cc5ebe. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/NLS6R1883474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51307e5fd1ba26d7b4299a0bc731bccf629a78ea714142b9e57dd590245577. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:23:45Z), 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/DEA811900604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62ab2dd00dc1efc4fcc95e78bfe6c2e0ebc8503b84436e402eb20b4d9a482ea. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:50Z), 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/DEA811900606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a21847c493d9f6dac177bae4d289e6739567b4e283eb31a03669353b159655. 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/DEA812100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4882922998a03429645522d7fdaf8e6fad612c2ff49f773ba8ca899a4383c9. 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/DEA812200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c29927cc3f1e706f816a34236d5d70551a1ebaf8255ab885720a997edd4b81. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/DEA812200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cd374913c796db354bb511c4d9f31bc65b439211a3cbc16c76f193393a6335. 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/DEA812300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cae4141651f0d5befd4f738fda3e5fc3eb853cbb8df8c400c86c0b4afc6fbc. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DEA812300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cae4141651f0d5befd4f738fda3e5fc3eb853cbb8df8c400c86c0b4afc6fbc. 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/DEA812300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b589e014b8cfc6978235c98c1065da29afd02abe33a82f8315124e399be1007. 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/DEA812300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace1b840e01ab6085184b16d1eba6e7552f7857a9aecfaee5ab438e4398a382. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEA812300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cd374913c796db354bb511c4d9f31bc65b439211a3cbc16c76f193393a6335. 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/DEA812300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45787782328b21fb46c93c4bf1e4b0a312130db4252705f71d22e905301ce308. 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/DEA812300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a42704744d64f46af922bdd8037285b982c5994ae41615ed33730d60c57101d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEA812300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d193bc83406545e700e6b5b204d0ffa8aebec8cd769111cfc76353f85a724a4. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEA812300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3db3c1b6cdc2edd13e61f08861a43c9b2b9f699cc42bb8d7f750202e4bbbaa9. 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/DEA812300117.
Ablaufdatum (feat. alyona alyona & Jerry Heil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4baa49bfd6c38774dce16e3b7d07496a89efe34e7f5c78f1c2ef8f82da92412. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:03:01Z), 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/DEA812300118.
Zumindest fühlt sich's so an (Akustik Version)
Zumindest fühlt sich's so an - Akustik Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc642f9e7051c62c1b79f1c1b0ff42e757eded5d2e02f5cfdc510a23b55301189. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEA812400124.
Ein Kleines Bisschen Glücklich (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865a66949578a7c33d6afb8d142e4443844c59ff5dda72ff1da82ff0c9c55dcc. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QMDA62445731.
Cool mit mir selbst (feat. VitaliZe & Ela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848e55be39eb2fe06aca12437ca51b09da6391709fc8321fbd789b3efebf4fbd. 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/DEA811700434.
Cool mit mir selbst (feat. VitaliZe & Ela) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32319aebeaa502eed1018fc5d219f1f33746ee356a9cffb2f4bd1c48c53637d3. 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/DEA811700448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc2606936dc3509d04bd848eacb957c5d966a9146792019967a019e19620516. 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/DEBL61800944.
Pflaster (feat. ela.) - Songpoeten Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424691f5404ed10c9a21ad630cbb9b3d1e9371d8a11d53698e46455fab7a2bf0. 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/DEE862102942.