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 0xc001584652f898a04e4ddfb7aedb82f51997047cd1eae618f45a884095faa40e. 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/2b492899-cf95-4bb8-bd6b-c97b85305308.json and https://artists.proofprofile.net/proofs/artist/2b492899-cf95-4bb8-bd6b-c97b85305308.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rebecca (Gesamtaufnahme Live - Neue Wiener Fassung 2022)
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 0x0236d36a3246754db4618fac73000391dc9aed858306f6d96a4101c27189483c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATM892203515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f55bebf4884310ffc03b6b5d7b152ae9881d53ef5e87e598a7cd085a19ea3b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATM892203518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f690518b004eb740470a3e9068619aa5607be7b1c3bb805f7e4a0fdc9e8c684. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATM892203537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d84945fbe55168e1eb25d3a2f9b7813daaf0a0da59132c455dfd9125b2b355. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATM891402113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa053a44558a895e91f5cbff7c59ba6d51a1fa6b935b5b09c9ba321960d3201. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATM891402117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96acb887378214b6bdc101d5432c5c1a3f2268c7dccb502ab6580e8bc01f731e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ATM891402119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdb0b791f5b2ceac6024480f1315b1db1ed9a68ce6a4346d3531557578053cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATM891402120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d4f113eadc7719771be02d286f304b2bc899f4143d7504a1f804cf044c7667. 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/ATM891402122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1ae09c14110e77f46232f759ce3432ef5495add0c29862c59530635c0af621. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATM891402123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba7344680dbeb831bde2df1e67939d9c90676b6b49cf7434ce55ea44076ac72. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATM891402126.
Elisabeth - Das Musical - Schönbrunn Version - Die EP (2024 Schönbrunn Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2400227898a2b38f48ad132fa74e3df9ec0a8b3ab154b70560f0af491ed981f6. 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/ATM892403739.
Wenn ich tanzen will (Schönbrunn Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b439d5a8c347afede54af317da2fcc29e28996fdd8d6d8e7ac499a7f7c29665. 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/ATM892403741.
Wenn ich dein Spiegel wär’ (Schönbrunn Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9c3f5cc95570ef21813bd7442c16aa7d7f45757013a9f121dd929c1fda7840. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATM892403743.
Elisabeth - Gesamtaufnahme Live - Jubiläumsfassung 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d5e06f09bd8c58675f04eaadeef7ec54f0ff81a95aafa489f959672d95a4b6. 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/ATM891201967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2b2baedb25b3711fdb84a14b98348e01f001f4ac03bdd43e79b260ea567ce9. 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/ATM891201969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d22183788c37c2da5199424b7ed76a9b8dca66f306ead830b3db5cfef3d4643. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ATM891201970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd203126ca8ccde974500145a1d72f3c6b35aceee22b7ca9245b68fe38dac18. 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/ATM891201972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40978b6479b4ecd83a8e73fd99f80095372595840b0b2e88c954533041d2dd25. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DELK41300602.
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