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 0x0adc18b5e0d8355e19af74c0f1ba6c376459502204325876a249ed06564b8d71. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/914eaba2-bdb6-4767-af61-2b88b5d56f9a.json and https://artists.proofprofile.net/proofs/artist/914eaba2-bdb6-4767-af61-2b88b5d56f9a.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 0x3c9fafd55c97a2ebc3ce10d90dc7126b2d0d1c8d07ab9b98319afcda8c24aba9. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:29:27Z), 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/GBKQU2255105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2d3c2747994cb280d455f9eafea325c008501240289bf08f55ce060a5b0735. 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/GBKQU2255106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080729ffe028e962ee621f0b57a9e633e41dff09674212448d690d3dfac1c77c. 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/GBKQU2191105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06771d15e8105cfaa2644b75e1acd3e2b5fc6875cea1e7073cac556b8ec7ed9. 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/GBLV62109539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669c763644b0ba05e6d32ab23c27c1ff6cbe5c10390476bdfee69fa0f22ef30. 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/GBKQU2255107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb83b10c67a4943fa4d2cdfd1cd80a0bb30802d51f2a0b0763e3f31b75625468. 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/GBKQU2255108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68548aa02c2def53b5e3a63a54aa91efb85d14bc15ca4550431ff77aa11c5b3. 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/GBKQU2247496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe469d5ae4638ffb18be9469d2decb6a36bec1aef1bf392f9204cda6ab4d34a59. 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/GBKQU2255109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b652bbe6fe30c7fd0e22a11278813a9567d95a8b310c3bc7ec10fa707585c8. 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/GBKQU2255110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1abc0d97a7e003f08097abd315d3ab3cdfc7d2222f7c50676c08128f7a3b03a. 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/GBKQU2219013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ba25ec5aac31635561daff5945ef81555542b38761fe64dd2879e43e76a2bb. 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/GBKQU2234053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a14364155828b3bd0c6739e7a654f29eb53f7fef040d944c37bedf0ec1ee1ba. 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/GBKQU2255111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46a975ee6257159721baab31974794aefd552b9b9928c9d554a9c6933b48f6d. 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/GBKQU2255112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1459a866e8b4b3023e84ed0bfb2e1c6a7d21bb00e67b2a4cafd773c795440e19. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2255113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60650b7f5770777e4fdef1ece5aac5bb06b9aa1c173d2df4034e84296e17e388. 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/GBKQU2202705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8d5c7d765098fdc215addce4433b236c989db36e07c2a05429dce90e6a7a06. 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/GBLV62103499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3378d6ab62f6949c977e531b6022faa890cb041ca9cbc3fd23555459dccfa5. 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/GBKQU2255114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fc598aa452e6db698386f4bbe40f3f0d39c0e8df62ef3c2ac7f198542d2542. 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/GBKQU2255115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e05805bfec95c106aa02c524d162d7496bdf9f515321d57794201b7ef60f87e. 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/GBKQU2295248.
Iris / Now Or Never (Tritonia 400) - Tritonal Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c55ceeb0e0380946a4e7af07593557a983a2868556f8d8023bf9b3aa57ad99c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:36:42Z), 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/GBKQU2295250.
Superhuman / First Time (Tritonia 400) - Tritonal Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1499730aa8da62cf073135d1953d60b9372cf97fa702a5b2afe18c9c03af17f6. 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/GBKQU2295251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2327b6ee310cf668b3be110b2a7c8cc6bc003f9c6e4d74f5d6af98ef11bc2b31. 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/GBKQU2295252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ac8000b6d270e3f46392bb672395b592aee94164db16ed4d3cf1624daa5a7. 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/GBKQU2295253.