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 0x5904c96d8b947f807aa51cbebbf951ed90fbe445ecab35eb1af28aa49245b989. 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/7c4f166d-7bb1-477c-a84c-a13d32138c3e.json and https://artists.proofprofile.net/proofs/artist/7c4f166d-7bb1-477c-a84c-a13d32138c3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Cypher (feat. AFRO, Ace Gabbana, Termanology, Kid Vishis, Chris Webby, Daylyt & Phire of Sister Tour)
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 0x84f085bf5966433c38f6ef3ccfec8a166473d58a9a8e2ed16d6bf6d686178b4f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USLD91725930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17614edb14784b8a48b5e1a66f9f4a247d9eb6f0903d38df15ef597c346230f9. 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/QM7281922470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1239f06a481dbc94fd92cd9f7ca83442a1c685f7ee0e95f789f394eb607adb. 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/QMFMG1543519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829e1c27a2bfd6afbfd644b02d9cad850e664235d58aaaa63deb8ebb6caeb94. 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/USKO11900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88770e3dd188af1bd8335ddf97c4feb4d202cf41acdc092c5ee428df58ea73. 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/USA2P1643810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc615810843a264972d8ede39e24c5b451a25c09d437972d1156d47bc6a0ccc51. 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/USUYG1058530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb048dccc09ace8767d3b936580e7407fb902ecf203f93391e65183ddb3c951. 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/USUYG1058537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b3d153b052b351fb0ee8f58711049e73b88db2a1af69afb47922cbea7629f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USQY51562453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713609ed8bd5874564824f9d771a47910c860683d30697e1c3dd22583a19b1c0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USQY51562467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06306c90bf87680e13ada6768f1fed2004e64c8114ecbb49c0d98522060c0464. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USUYG1058002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6899d2a97257ebba92ae870149fd3af393d563bda5dd64d7ee87c7d67dfa9c8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USUYG1058028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356248fc4af25ffb5fc1a7b7ca61b4b56fa194b2b3389e552eeaa16a9485f2f1. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USQY51544176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b3d153b052b351fb0ee8f58711049e73b88db2a1af69afb47922cbea7629f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USQY51562453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713609ed8bd5874564824f9d771a47910c860683d30697e1c3dd22583a19b1c0. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USQY51562467.