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 0x3c921ebf32025adb674af7f2f5d414c5637ee6ecda86f81589a79c086a7fea0f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ca42e4c-0f52-42b9-8d1c-924f72d88a46.json and https://artists.proofprofile.net/proofs/artist/6ca42e4c-0f52-42b9-8d1c-924f72d88a46.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 0xc21dc563b682ba318fd802a8632112ace5b7ca8b2cc965a2c94a119c45d20a52. 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/NLC200700045.
Shadowlands Anthem - Zany & Vince's Zoveelste Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f0cd4e4ddc9bdd38c41ebafa5140aea5bf542f394b464eee704232d5b5ba61. 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/NLS241200838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043955b920020d2affc0b4bb9dc1362df309186ef85c3a7bda3698d5df7d575c. 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/NLC200900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffb6d3b97f486005da1b2a6f2d445202596f53e7881be3a067951ebfe115524. 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/NLC201700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2438fa90f4b9b0e98d0321cba6b7ed61206ea1a8465eca04fbd3f3262a1d1b. 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/NLH2L1800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f30353d3b922578f6c6514269f0f5a2e7feaaa9b681817f09a73a811ad3ff97. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLQS91600239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29788840d82f6dcb16218fbe42fa28501bafbdb443c1828a9ab5320ce5f14f97. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLH2L1700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31e89fa40aba27db76126d6c699cba35cc25e41a434ee9c4c443a8220d70f9. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/NLC201400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0bcd20d6a37dfad315295fc6fa67c4f9c370056b3ad220e60db130eb67fb7a. 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/ITC941403143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31e89fa40aba27db76126d6c699cba35cc25e41a434ee9c4c443a8220d70f9. 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/NLC201400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc733755310fec4cea0b85e6b7bb1d1adf56a9522fa002a8f4c20dedd2f15458e. 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/NLF712306067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002d1a6e99467cd5124f367aa2d20be1e84aadab3e493ba8c50edddec0b2d29d. 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/NLF712304463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eab7c405ab97c4ec2c663a18939135bb8922b5e21a36472b2b713ae0c7386a. 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/BEB681300680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbf526564dd300dcf0337fdcb689f717148aeee3058ea36b2df4c73062ab9ac. 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/NLC201000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979f0e61a62b8be89ffa38b0104058c25d9a5c23e6f33f90ca8ce1ebb8e9d9ab. 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/NLS761100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4e7d4bb1d1250442fb97d2b69fdfda39f7a6888ff1f7167e40fe64dcd9f93b. 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/NLS761100026.