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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4052f45afe3ad592c06390adcd9ea1e4abaa16fdbba2ee0f2e09df6b3aac5db2. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd26b149-97a9-4ea4-82bc-34eb0c7ec58e.json and https://artists.proofprofile.net/proofs/artist/cd26b149-97a9-4ea4-82bc-34eb0c7ec58e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eroottiset Elokuvat 1970-Luku (Elokuvien Ääniraidat Elokuvamusiikki Mix)
Peter Zimmer spielt Melodien von Udo Jürgens
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ddde33286e0b1a2153ad92afe9d1798db84abd20103aaac1b58bb97d81d2a6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DESJ21600316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4960adb9f5595701186e6f22b466d54016983636158b425dc34f6abe666a82a. 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/DESJ21600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe36f67c51c36d14ba996dad73b57140e497e22cb55328e7b6efc6f341262403. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DESJ21600318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7033ca67e5c52b736bb28e2b885c9283453269c53b012e3c63ea46b73101db92. 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/DESJ21600321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2ee1cd836263675a9aa06b0f5c63854e7041339fcc35bd1fddb8e9ec373c66. 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/DESJ21600323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7114fde7a48bdca3d284cfe9f0dd9510b318895265ebe021a4061e7d3a619ebf. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DESJ21600324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7224fa0ffdf74fd64b2324e1255d1850d9d2acb085ff93262b72c32d5d5619. 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/DESJ21600325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6c432ed5054fdfb82fef97847e0816885016d764a4ae36954ff286e5a6bcbf. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DESJ21600327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50a4ad0ba59b24874527f8bbf447a594334e3995c92b852d23db976a11b30c1. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DESJ21600328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb832f0f4784c785c09e4763139469eea0c30dae1365465c33fc267cbb7808e0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DESJ21600329.