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 0xf51d08117826f6a4252bec12acb3a2d0b0022f5f1552e532d3c139ee696516ab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a8987c9-6344-4bb9-ac78-8d4f8bf51cdc.json and https://artists.proofprofile.net/proofs/artist/1a8987c9-6344-4bb9-ac78-8d4f8bf51cdc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Three Investigators - Robert Arthur - Teil 1
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 0x02ef8e7087ae58d6d497d48b0e48c61c76fe9629adff95019ca722a521c1c014. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEC711908671.
The Three Investigators - Robert Arthur - Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc32607f0c65c2d258162c075020bdbc9adb0f67ec9844d4775105b60c8dcb1. 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/DEC711908674.
Heikedine Körting - Die Königin der Hörspiele (gelesen von Axel Milberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d1d24587e727e4da1e31272beb379d4f5d70a36917abe8d0695ddc172bcd3. 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/DEC712506636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0e839a286cb49c6c17192100aa3ec52cf5e26675640656401e46ba936ffa6a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:56:33Z), 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/DEC712506637.
01 Von Hannover nach Thalbürgel - Die Kugel im Kopf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dac3161705c5b75b51384ca32ff69ef0ca0859159f98be28a562d6b2b8c86a. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:02:23Z), 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/DEC712506638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a868330298f88b500137092dd813fc3f16c78eb984dd0bf617d2475d7e2a96. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:39:15Z), 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/DEC712507047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d07688636180cb675d8f207c639f62260f5638b5cc304d13ac28a9b3f4bac1f. 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/DEC712507049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9051c914ec489e20f1a1bacc5f3d8ca50b8a4cad87c58ca71de1b4ee2f81396. 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/DEC712507050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaed8a17eb3c0e75ba7a62376e5311e09a757a779d108a69a701f7abd5ec517c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/DEC712507051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223d162d8b270f328ea56a87491c70c8e36f453d19cf689f45572dbd03c1b00c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:26Z), 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/DEC712506646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a19f75c07fa253640971df5a7444e056be842ea75d7e26fbed0bfae8f8f3a9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEC712507056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704fa713eaf84234ed401f8641c84f6221ff8f029812ef06a6581143c9953ecf. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DEC712506650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7b66bf455df65a9eb01b4be28ce1bfd7ae5ed48dc11adcf6a8126ee3fc9790. 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/DEC712507057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecf5be2883db5f894bcc76206d18b3bd540973f827dffec709dfcad1c40093c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:28Z), 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/DEC712507058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121b601edc7a43523cf0a3df48bbed97afe347ad45b7f085c6b709b6ca0273ff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEC712507061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf0150a6bcd23e2f375847742b28608eac70137e8e2de0e79ffb70ea2edf413. 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/DEC712507063.
Klappernde Gerippe für beste Freundinnen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c69a09d84ee929868c80a494ae30f9ce9b4e1875a89f694bdeb5901ee566e12. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/DEC712507065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce27cf22f419c6defb0537893982003a21c0261c1d520994ce0395651a905494. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEC712507066.
05 Männer, Abi, Sternschnuppe - Inniges Verhältnis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaf00c478fb683bb2c9625f2643079398472f04bcc4a93c5cf267ac4e3ce52d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEC712506664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943e128894475bc53f1e442b4a98b4e468d11b360733342308e469b6282a6e68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEC712507069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bea8dd17a4e844ace1f246501feaa21638a09135692bf6ade905fccad19e32. 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/DEC712507091.