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 0xf7030316c99d64b8b0eda9529534d097c455515e0c3025b067dda35833ca2c9f. 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/96e49ef5-ac22-4431-aaeb-e77c30ebe16a.json and https://artists.proofprofile.net/proofs/artist/96e49ef5-ac22-4431-aaeb-e77c30ebe16a.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 0x2602b54c5fdc2c6aa127d2f089e508ff02b3b4084f64f8c332756cbc8542405f. 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/QM4TX2488024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4845be470d42f61e6b06fe03e89a0fddc445cc1a43ddabc2584c41b0626823. 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/QMFMG2341438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e0870b377bc1ea3adbd102f856656cd790079a4e0203230837066c5a8ea5bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMG2341439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc02363f4bd1e48d56cbb1825fc015b042af53ce2e664d69258a9b323145f48. 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/QM7282402249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c8171d7673dcc3a39edbf98dbd65e481827cac9005192f8655534cefcfa3cb. 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/QM6P42412027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c8171d7673dcc3a39edbf98dbd65e481827cac9005192f8655534cefcfa3cb. 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/QM6P42412027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7936c0759d4b0ded2d4e784f2246e804908e92a3dbf30ecf093dbc917048026d. 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/QM4TW2494911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4845be470d42f61e6b06fe03e89a0fddc445cc1a43ddabc2584c41b0626823. 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/QMFMG2341438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f537b578e79fc969a81309031fb2493eda6a60d5332b3567b9330d0eb1faca. 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/US83Z2350111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c36060ba94cc0713daae98e3a8f908d77742ef8cccd4f53d1901700d899c0c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2350112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7233601a42dddb4478805fb31240d7e5e03dda5c6176f6b976b1cfcb67822fbc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2350113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd52e03175fea8d204c7d02c782c7e0d5795584b65809f06688967d02bad4d1. 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/NL8NG2300036.
Reconfiguration Of The Space Around Me - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb9e9bbc2daab8248b2c3f8c02b0da79bb7798cd02545014688ae9dc4fea432. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QMFME2227015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45f453c3d7e16e5429e4677dfe20af13bb5d975585b66c382aeab8b6dea1ff9. 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/GBKQU2259356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c230b3106414f62ad3ae865e1986468de5587a3c2c219a6b3a358adb91f006a. 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/GBKQU2259357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6582a143ab203a1a5c0bb5e7b12b9e494daf1122c9e16ca42c2bee1cae2dce. 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/NLEW22100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8039bfc06b55bd1e0b4638fa9b0f76be640485e256770d4548551db90133e498. 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/NLEW22100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ae62c6c9cea1d7c401b43a91698a1d48c118915ec975663b98afdb9261c917. 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/NL2QY2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cce728b626bdd440eb06c936418bde3d2934423f71f21c4d14e84aef445921f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL2QY2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7a697e74f2d5b039e36b8d614ff5cb161ce6dc9f6a4a4a6ccc110cfdc8dbb6. 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/US83Z2032471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a54f689c7487dcab9ec5109d4016da0888611f6f7c8d4d74a947cc0ca4894a7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US83Z2011721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb5d2017cc52664e860c3a270ae74b6692f4925f067bd806453cd982fa5f6f2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2011722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1939b96f355bd5495f9a05317387fd6998e7eca2b692320f5942401a6c3ed991. 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/US83Z1932912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4e6e8959091d9562401cd1e289e28fe84996d3f4f3cf90f1e1791213afb8b0. 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/GBKQU1860719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828d706f861c40120f359354143a6f2a45d94d7be3b983d30b2aa0a13e7a4033. 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/NLF711803196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846529c4f39deffbb1642d0f2055f53b5c222ff1b0d6253cbde266d05922d2a. 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/NLF711803198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc586783e348147db430e0ac580b75c037bde8ba37af462637901baba915667. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF712003097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddd2c8b2361a829331ad94279c1beb5830d98cf3604254f614025dd6c56860b. 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/NLF711908184.