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 0x16b449508411d9e1427cd10f3ab444f90e2029efa2c916149bf9d5099001210a. 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/5535b49c-e6e1-4738-bbb5-1dd21c7ae448.json and https://artists.proofprofile.net/proofs/artist/5535b49c-e6e1-4738-bbb5-1dd21c7ae448.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 0xea8f3fd15cf72240c1bde063dadb625fd8a552970b4bbabc98b0404eb0ddbd84. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEYW82308088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fab8c185ebd8477e97ba55aa91660ac6d57ce5b9a10fbcd77d334d23320e9. 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/DEYW82308089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b99a89d422272fcc8a47371d55c0890a50a32db0b1baa8811021070a3dff4c6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEYW82308090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045e71146d8261f659077ec83fa713703f8e5dee3c7bb6442ba92522307f09e4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEYW82308091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001ff94973da634a4eabbd2e180adb054b16ec90afea08d9f88c7f442f89673c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEYW82308092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cbf637c5a4e5df6288f073877fa4cecfdb82db524c077cb4d9ee19853ae8a2. 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/USERN1008217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b1954f92fd7684d3cdf162b6dc62e35e55d3d5b658f0a1b3d37abfc35eb2e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USERN1008218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e07167751da154cfc303b55ddbd86339034858c20cba48bb7cbd5aced1aceae. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USERN1008221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73cbc569f872ca63b0e64b16fd1af568ae82f6768f1e29451abbec28b6202e4. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/USERN1008222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dfc6c6854f67f69ec07cf750eac16e9c5e97fd10233b071e683b6bcb88ef62. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USERN1008223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673d8af088ff9ed0b3a8552c93adab43fe211fffe97e9e8aac51ac58b25a799b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMZNK1700259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8079bf7e0dd54cfa4e817f5a282517a96708f429b482ff7d5ac2ffe4c64e13a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMZNK1700260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7436192564972d60e6655bc81ecd2e7bbe9bacefdb1a0df2e8c437d69bcab9e0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QMZNK1700261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a921cadaab9094e7ef993e853fd95d08e777ecfcd077c38fc8cbf10ef88351. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMZNK1700262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e802d40da04934ae6eb871902e068e18a887bb12a7955ef4d4394db8bfc76fa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMZNK1700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e29b6496ac8f44bd4d674360a10c8609eca368eca835dde5d1dc77d4bab6391. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM6MZ2046308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c90943b5bb3d50ea32d39a6171a7a0b5ae725009b2f62426b495165bb269a93. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6MZ2046310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62f95c242948e322a0720e5d985d1e3ec10dd4de13f840fe3d2417efe493590. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZNWU2108708.
Nylist 666 (666 Vocalist World Record Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c1cefcf914ff20f1912d52385db04f591a01c7d1c0a803ee3ee3c3e178725f. 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/QZK6H2153994.
Beyond Deviation 400 - 400 Vocalist World Record Track
Beyond Deviation 400 (400 Vocalist World Record Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1ff765a318890284fe074834236fccf32af3d0127cc73e630637926bb060a. 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/CAE562123701.