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 0x7126d8ceb7dfa270fdf603d6876d52339118765075d1967c0c2c8211408a1931. 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/bc133bc8-d20e-4503-b452-7eb11eb90c56.json and https://artists.proofprofile.net/proofs/artist/bc133bc8-d20e-4503-b452-7eb11eb90c56.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 0x90356d66257461bca14624789ce721abb5d6fb2d53837618d97c2cac54a0bedd. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEF068205450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebaf39da79afcd696088c2ff376ed697c794a5ea2f550a66327ee9060c1dbc1. 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/DEF068205470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6419a0ac1307fcbc8b1596bf3e6307c3081ae72f0e389e6c840b28abbd2dc16. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEF068205480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323e9748ab24c0766f3411b73505fbfe6637a6860b6f4d6ce9c4d4f0ad46f779. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:08:00Z), 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/DEF068205490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a63e1d85cb2c37170ce93802bcb29f29d4d897fb1e6d8d4de07cace9bb1b5b. 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/DEF068205500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf421b59ac49b6c4a84074877a299a0d32d1b36ade0a4dfac6914b1a1b8ddf9eb. 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/DEF068205530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde259d10805ececb4972413c1b1a53ae4da9290aa0d2237229e8cf243c019dc. 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/DEF068304300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c844c43b25330caceabe6a13c3ae3d625d88f0774c55fd992433906ede21ec. 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/DEF068304340.
Radio Eriwahn präsentiert Udo Lindenberg + Panikorchester (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be771b9daaf7f4a4c40c98810075feb6685332c15f0d00135b7282c17f5108c. 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/DEF068705210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4be687ec8bff91702e8ae516aeb25a25fc0d8ffe9eb4ccf7a2e0616d0d7d527. 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/DEF068705390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a709121dddcd79b8139f947bb87b426c17af2ab8623dc27842ab41abc3857c8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEC730300456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebaf39da79afcd696088c2ff376ed697c794a5ea2f550a66327ee9060c1dbc1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEF068205470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9ad5edb06d66fc276565fc919de9f305798ee32709d07b97e000a724fcb95. 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/DEA610200088.
Sie brauchen keinen Führer (feat. Peter Maffay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a66a5c59be132504659435de939fecb81abef0aa7bca59eecbbac05911781bd. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEA810601769.
Vorglühen - Kiez Edition (Reeperbahn Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2ea96d23eb77acaa57ab4f18bc43f1cc7db6574b408828087c0922bc7286eb. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:33:07Z), 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/DEA610200222.
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