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 0x80865b6a3458786696d55b5e3a8a048175c20e23cdc5e94e46748625ebfea3ff. 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/47817290-4e23-4026-b316-a06a34993d5c.json and https://artists.proofprofile.net/proofs/artist/47817290-4e23-4026-b316-a06a34993d5c.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 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 0x5fe7320ab7a17fe0cd7022c410da08b1cc50b7deb01227f0cefc5e85d8547fde. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/ATH700212222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0845988f4da7d17c1244bea3b965bbb2a4479f8b59249b4ef709e8717dd79a84. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ATH700515221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2167bda2751c80fa81a7c63cc7735ece3780c9e901648b21ea2ccd628353a5b7. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/ATH700716250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb174ec81126b0bf4c6375aded5371edc8814fdc65048bdbb0a96c3f227c1209a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ATH700716290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d0eca0e367d27cfba18e80d273b6cd3ccd753b3382368253dfc38f4365a2af. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATH700716310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b52c3e162bb1fcf5b7338348eccaa225604a9e0acebfc50c4bac699e35e1f4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ATH701019030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8d84db8de928580b4873b99c5671e9133ff0517d2a148481b643d5dae32a92. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ATH701221451.
Zillertaler Haderlumpen Unsere schönsten Balladen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cdceb1ea56b82476d2d4a166e856ac12be25c8f5a8f74b5d91cbbaf7d8c9c5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ATH701423100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94844b169ec99264f5602d50c312836db16ae92c35f60f6c75339fc828dfc835. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ATH701625590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c603319a8449bd0f02f854b62d36de20b7ff9788d69355ae6e9915e8da75741. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ATH701727030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9ac6a39efe55eae111648e1aefb4b93f9f56e967f77dc07f708f0552bd9294. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ATH701727120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefe8d0c19d808cc705babbe0325703de438c595fc05bf804fdf7ea025d20e9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATH700515133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f16c4e580f81a230e9b89c00921dc7afdaf736a28f1367a83bbfe216850d7f. 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/ATH700515253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800682c686b95e5f408b6ce5769ee81994ba1a8c46ac9893543e059eb3a2356e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ATH701727063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac95d24356b9063c3193654aa3065255036e6744dc19780483ae7a54bc13f27. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ATH701929220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d92bb170ce4b1d15479bb5dedf28341070f9e13f479a97d137e0c021d4d4022. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ATH701929260.
1, 2 oder 3000 Jahre (Party-Version) [feat. Zillertaler Haderlumpen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4204446b1d20edf36aa3795564d07175161eed75bae354fd7efe0d5306c5e2. 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/DET371068235.
Ballermann Stars - Die Oktoberfest - Hits 2011 - Die original Wiesn Schlager Party
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4204446b1d20edf36aa3795564d07175161eed75bae354fd7efe0d5306c5e2. 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/DET371068235.