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 0xb9fc639dbc39ebc8e0d7656ce60c3d383c5f2730ddfe7311a7a470593873cd8b. 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/e418312e-e544-459b-92a4-fd6525944299.json and https://artists.proofprofile.net/proofs/artist/e418312e-e544-459b-92a4-fd6525944299.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 0x92854458cf97f86ea9d518d84558b2a5d2a777848856539ea3ffddab0151dfe6. 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/ATZ241562998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680efc500e7880e5554f6d2813873269db7211f2c2eae91bbaf8929764d40ebb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ATV112200979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0c3aa786ca07be67442a2d42809d306551d9234d3bd1fe604e1e5fcd884e52. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/ATV112200981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe095773ddc77ba1b40ac663ff9b5c96777699916d82a0e51e67eb9e8518680b0. 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/ATZ241562794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aaf556721ad50def12a27d8c60d62793654d60a1a86574886ab16e652ea3ff. 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/ATZ241562799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f489969d16eed53dbdce619b7d2ff40c660b6242d6e5e0444b7c1d3823ebcf7. 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/ATV112200950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd0524a69381e679b15b2b3c2ce927fc3e8297a7da1fe1461eccaf5727aa48e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATV112200957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac23d4c2c8b91cad8dab37fba7075f8c732eb1fe05d01f780717c10d24c004f9. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/ATZ241562809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bdbf44b4dd75d13f6432dd43efacdd753da77ed4b36296f3a43f5e9c003804. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ATV112200965.
Die Goldene Hitparade Der Volksmusik Alpenrebellen
Das Beste der AlpenRebellen (2007 Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17da90ec8c88dcf8427677432d0bd365a357146a946a369628917584e86aefe2. 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/ATV111200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c1d2a3f59d56933b2d7ecba2a85a0c43e16de3541615a2f170d39205a8b566. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QZWFK2599376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba00b39322c64aec849515d6ae32cda31114c8df980a6f79513e874e6e91d3c0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWFK2599377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff650c5ee007ad1fdd0f57d2139b86da6205542c7c9edf7ac24decf8ed9185ed. 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/QZWFK2599378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd58a9a3354272918152cf531ab3f7099f0a4b984f9bfa5cd3dce4ca16b18507. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZWFK2599379.