thumb|right|Miss Platnum, moers festival 2010 Miss Platnum (born Ruth Maria Renner; 27 September 1980), formerly known as Platnum, is a Romanian-German singer, songwriter and musician, currently signe
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 0x8236e5257cf9ac02bae3e80da595f034227894c0dae96684e2767ce55b46535d. 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/4a288831-ae15-4c1b-a53f-80a9bd031bd6.json and https://artists.proofprofile.net/proofs/artist/4a288831-ae15-4c1b-a53f-80a9bd031bd6.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 0x872ad0acf28b9593f5403cfd51e16abc7a3aa3c84dc612049c89af90049cb963. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ321200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a66d1ce8e2b0b370e12693659bfb29104d323a0bad84df33278ce8f4ee7fbe3. 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/DEOE81100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fce2408e8d9ac57be8cc1209d3984fae1e366794a0c0f9274a468052f2aa4b. 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/DEUM71403698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ef5e954d4812763fd9593843bfb380926d8210785dcb2ccb8dbd9612633ce. 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/DEUM71403627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5198bfc19550a5be8403c437b1915ab83ce49feb0286e703f4b5ff73b25e31. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEYF12300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e30f130e2b8fb79f0332a43f4de4656e437f33095e3b0f6eda17eb25cccc64. 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/DEPI82302037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ad4edaf1c8566fd8abbfb859e33079729f3b2c18064e3632660235f34576fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEQ321500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d51b0868d4dcefef8b8b52717b8cfbe5c4fdfe51894a109b8e9b9eb3c8e202d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72401807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b852bc22f4a80adf65f826deb1cafb1283688d99dbdeaa722923aaa449ab8b. 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/DELV42000429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18701ae5ee49e100805ffa8b86f87dc450450283b6fb7e30a781bdcffae63465. 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/DE1HC2500010.