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 0xdc63a8c5e486d6c20489b8c6fb68a11630a0254de4f5509540ea42db2ca9ba85. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd43d753-6c34-4d5b-b708-f636b7229630.json and https://artists.proofprofile.net/proofs/artist/dd43d753-6c34-4d5b-b708-f636b7229630.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome to Swing States from Regina Carter
Swing States: Harmony in the Battleground
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 0x2a908196f7297945f624edd01464d73da7501dd8eb80f34d7cdee4f5ef53584b. 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/USKO12000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe7a7dbdf9e69c6c13917299cf6638961a33109c045cfb76b9149c811709294. 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/USKO12000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94c40332366ac514bc8300bdc4f0465bc498f34443fc6e4c01cf6c0f4dd7ae0. 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/USKO12000069.
Dancing in The Street (Detroit, Michigan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402b086c89b3dd7c14e6dbe90d1e8f76b76f7a43806a51ca91a139227dd1b7b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USKO12000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b374e2d709d0f8eced2413b620c86c07ae2bb6e38acba9e37dd066e2fd107c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USKO12000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448b01ee2f2a2c90ae896c36b7c3fc75a7c7cc0fd12bbda93e8724e6cd7b9b43. 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/USKO12000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4584c41d4100c9d75b2021830b113cca560c0474ddc6d0450794fda74a9070ba. 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/USKO12000073.