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 0x6042bceffa6c39921afb23b2fcf7adb5aa303d4f900660cb3090f96731370b18. 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/ff77394d-6f4f-4a3e-aaa1-61a797e94b4f.json and https://artists.proofprofile.net/proofs/artist/ff77394d-6f4f-4a3e-aaa1-61a797e94b4f.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 0xbe5d64cc856b0ae5ff639a09bc9026b7e67a247d243ff9ec0204d74d2415c7be. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US6760500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97067248b5f5bf456fddb0d7b427b8f69cd0e1eda09cba2fd1f49985a38c9f56. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US6760500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25d8d44c0e580bfe9b73fc0b4dc4c7ff24b006f543008f0a7c0ec416ba3174f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/US6760500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f639da78cf3223585d49fd9226d8b0963870ccb7abe6f7d2a3b08482d0025b1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US6760500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeeb33d177b2af87e104a130fddfea952a1c8e046a4d56eb3a96ab9aa570650c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCACP1677224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8c959a9e6601b2e2c04f9d5de2099769f2f0ff14d574f31d12c139f8c0d534. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/TCABO1355425.
Red Light Juliet Broadcast 2: Steady Straight Lights / Sudden Dark Turns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59fe7c7d14c685f14640b61d2073550584acea0708d8cba5ba791d2236b9bb6. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCABU1442073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96903ba39f727829b919bb57f635dfb78b8f589a84061054f15bce45eca2163b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCABU1442079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d40d3cc39b9cdfad3cdcaa1595adba34350cbc1557132f1a6b766cf6595cb24. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACL1610720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e82f4dcdf768d523d0b2c5b00cb5e9dc92f4b6e2b4fbac314e52ab9e9de3eed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACL1610733.
The Dust of My Dad's Dreams (feat. Claudio Sanchez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee2fff69a8fe7ce11944892d11d4dd3d6f305722ab4bd4bc2c64b13816f921d. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/TCACL1610738.