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 0x02804b0ca57230c0adb0a069fcdb392c6741334adba7147728d1a63c0dcdc3d8. 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/957307f5-3a29-4b4b-baaf-7f3ce060fc48.json and https://artists.proofprofile.net/proofs/artist/957307f5-3a29-4b4b-baaf-7f3ce060fc48.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 0xcee686755530ac1a79166901b99688547ab99e13af9175fafb3e67eea9a919d4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:39Z), 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/QZHNA1951373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc4f6b7464eacd54b708c761f0c6afc9ae7a339c40692116452fd6c6db414a8. 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/QZNWW2027337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfdbf5d164d2e507953c2380493df23c06b5c26b173a2f53f75c8b62faa2b36. 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/QZHN52145884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bef99d40d85ad66e1ce0f4d436bf36a0f50458b63436fa557e81c6ac338345. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNWY2135595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04296e698840c4f7fd10836cf49763f848bf700c25e8ac81960a3c5526e36d0c. 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/QZNWY2135597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe971611e00108eb72f68582e2cc19880d3cdaa59fc892f1a1be1eb789c7172a2. 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/QZNWY2135598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ade8b9b38001a83842a30a0194b7d69c26c1bbc951f61d43ba873545768943. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:03:20Z), 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/QZNWY2135599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30af39100f4edfd1b80ee0767a5654173c34525f14e212db9334edeee527130. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZNWY2135602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed760154352f051998fe49b41678bb38d08b0f7be28cfcad2fd6ff6c3424e74e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/DEVL12100797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d305024d926224739ac11ac5ab2438c30f530b129229c8db75bae339ed6c42a. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZTAT2140013.
Werde wach und stärke (Open Doors Tag 2022 Version)
Werde wach und stärke - Open Doors Tag 2022 Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de0c0143de74fed177e6f30af23200a5c774a1255dff4101737bd5d3adf93a9. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZK6L2299344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679281451d1386c2c3c8404c162fbcc3634d37c847d6283e416f2ce969d2280c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:43Z), 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/QZRP42294718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda65dd1d283bec78d4326d813991349461dcd86a5d8572f0cab678fa3ce85e6f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:24:48Z), 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/QZTB72219249.
Herr, wenn nicht du (Piano Instrumental) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaf395c7ade790eddc68ba21cc47fa7ff4061f3c96faefa52d9c629be6337a9. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZTBB2351620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd71097f25e3184f04d71e42031dc0afa56b611ac0a3777970e2f614f8bc98. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTBB2351621.
Neuer Morgen, neue Gnade - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f9cc9d12aca50dccf2a4323b8dc0f95f419de44e2123e8fc3bf0ed1cf2cdc1. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTBB2351622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6ff47984e1b8aa73b9cac3023149dbd06c7eb8548fe613cb08a8abccd2bf1b. 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/QZTBB2351623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71df6373de9773871e3b58429027b8a799281121edc3a1530959e2ad919faf24. 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/QZTBB2351624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c37d4f658963d0238a4c7d3e8ddb0931e08f7d8047de6f44c78dce7ba805dd. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:12:10Z), 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/QZTBB2351625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa16c71f8b093d7eb6c8caeea1219ece9319c4bce13aec70fabc31077780627. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTBB2351626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac27854979e8fb63b0a09ec9bdd359dfb8abba01c5f7c7acab0e2c2098195cf. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZMEQ2462341.
Bei dir darf ich sein / Welch ein Preis (Piano & Cello Session) [Piano & Cello Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685cea3b484e8be8351ede702e61b9ec8f63992517f5c7d8919e12a6697f0a53. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZWFJ2479909.