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 0xb863731394a123781a581a9cdec66ab5047ed201cae5c864a46bf3c19537cdda. 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/6d7351f8-35f1-4c98-9f60-2714184dab5b.json and https://artists.proofprofile.net/proofs/artist/6d7351f8-35f1-4c98-9f60-2714184dab5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Armada Deep House Selection, Vol. 2 (The Finest Deep House Tunes)
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 0x07571176c53f39e58793c915d5532bba1e04c8d7844aa42d5a48087ee1e24151. 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/NLF711313858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23c0fd2902eecef2d6504e49c28c7ba4e1f1ce2be91bccbac05626fab0588da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBJAJ1302854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac03bc313bb7ce8d6898ff9f0631454710f40891ceeeb04793f751e277000fc. 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/NLF711400704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963ab65a870eb89f872c2a955351218f7e39a195e229d6692a01c1eee91795a2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711401548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2e419ed3d591c8141fa1d2b550bd9fd56bc34b90b036cad3defacd432c3ad2. 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/NLF711401193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2921f450be4c717284f1816aa55aa993e2eab5506600e98804da14d93e0106. 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/NLF711401549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab04aa2d7d8313938f92b1c58ad7a83e451dd47e97d5fb2b2294f3bd43058676. 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/DECL81300076.
Armada Deep 2014, Volume 1 (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62af10b69f79770d2d9e507c8a342397141a9d36143a959cd67f1d9b1058dab7. 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/NLF711402608.
Miss You (Christos Fourkis Chill Out Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2b129c53cc6c481d825e1effd265682241f158d4e7ad68d7b6b29f05eab932. 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/FR6F31442360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1835215a078acd2b84b15e29012664a702b433ec7a38680cc657e3b6197e10. 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/US3DU1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49213229aefecf1641294f77dcfec4c6e6c36c71277041ffa2dfd0da85325722. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEDL81201888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20fc8d7c6d2f9a250f4bce8dcb010527fe0131b17169a38e9df96bf5f74d210. 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/DESH41200025.
Infinity 2014 (Gestört Aber Geil Remix Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78ae8c097ba74bc5a8d8ff981d1cceb379e12cd0142deced2283149a04594c6. 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/DEN061400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbbab91f4a17f984d5290ddd5ec575c9ac863159423cd3b6d3c46a3fd0c9a5c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:10Z), 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/NLF711400663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8e45e02a980f45861e15cb986ad537bdd4f7f47a3f80af5a0b880b1d0e9715. 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/GBDEC1300516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4eaca263f8c43a11ca79a8322db1732a34c13821040fde0ab5995070bbe5a3. 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/GBULZ1300836.
Pure Salinas, Vol. 5 (Compiled by DJ Zappi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12903829cd585d7730434e9dca68301043079d3fee90a91a799a01e338a69b7e. 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/DEBW60559058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84f153c5956f7b6f31307254d5424e1f72a1d9b6f16751c6dd25e0d4c6558bf. 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/DEGL61300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49213229aefecf1641294f77dcfec4c6e6c36c71277041ffa2dfd0da85325722. 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/DEDL81201888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338e470af7cb935314c8d01d62a4312048813d9dea187d868a1b0270439890a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBJPB0500377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739fbead63f299ffd570df80c190016694b0e2f0bf15722da4aae37fa50284bf. 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/DECL81300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b7d9f0df1181dc18b610fd817fb73f02c55185e4677a373e4128303c97bd7. 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/DECL81300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49213229aefecf1641294f77dcfec4c6e6c36c71277041ffa2dfd0da85325722. 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/DEDL81201888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc560c593c5d038c2540886edb0ee46272f4cb27ba771d3395d20d32c85d2b74. 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/DEW871307085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04be69a417d88d1b32f6a9724a683e30146733c7f21ef7b8b110963683ecce7. 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/DECL81200001.
Kleines Traumparadies - Wild Culture Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13efaf1816e42e708fc8929f5e71fb1ffebe336cf88327db740103e10da15a7b. 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/DECL81200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae40acbc9376fdea4727de605be550fd2d266be868505bcdbe1d7ef95bbb63. 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/DES311400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49213229aefecf1641294f77dcfec4c6e6c36c71277041ffa2dfd0da85325722. 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/DEDL81201888.