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 0x2f0e3d9982927e963bc0e15c2ffebe362d8fd230178a5fd4cd5cfb935bc065ad. 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/d7d91728-81d4-43ef-a494-0deefc195ad9.json and https://artists.proofprofile.net/proofs/artist/d7d91728-81d4-43ef-a494-0deefc195ad9.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 0xe93fd2463c47a570104abd7a14aad308422b8085d2f125ae13f19bd68cf49e96. 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/USA2P2346787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f147fad4d461c4426fedaaae74c7f08c6ea1aa276cbefc0d56d2604024069bc. 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/USUG12103276.
High Horse (feat. BRELAND and Blanco Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a86a5a5e52cdb82b23703731f0666d324a446b0e1ff51141570b7a4b3e0a9de. 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/USQX92101464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a21adaabf9ce666b88ffceaf08407f137c9727bb258d09168bee7b61147dcfa. 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/QMRSZ2101148.
Boots Don't (From "Twisters: The Album")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a1f636f10260a122d770d2a960c724b9033481e988905f0588692d53049f73. 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/USAT22405378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4823ff2700d4d36bd2f2dd0192d0ce59799018cc06a19eaa16c7d8b58e0f776. 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/USAT22102201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3097a7755a4acbcc8d977d3e520f7979bee1976b06607ab4e45ab200078cc8. 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/USAT22201618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc570f4ccff1ffccbf8b902f9bb4f3e38a34a0b31e430a98335bb5b557fb01ebe. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USUYG1305712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77de7c764d7a2753d6971a7416862f4e79846043f15f0328e60a2ceedc36cee0. 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/GBAHS2200927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf734298a54c2b8b483e8948ce0f76fd9f2a7e210902bcd67fbb573a2cf5770e. 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/USAT22403701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7214d1d5751094a22b181913835adfafa923d8e9b6ccd9a0388d9c453e3cf5d. 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/USAT22400541.
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