thumb|Kimberly Perry performing with The Band Perry in 2013. Kimberly Marie Perry (born July 12, 1983) is an American singer and songwriter, best known as a member of The Band Perry. The group signed
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 0x8ba9e0e06a7f36e575a5950d5cc81746836bf71cc07a78c008e118b9464f77b6. 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/04098c25-8849-4b8a-a634-1e9350958ed1.json and https://artists.proofprofile.net/proofs/artist/04098c25-8849-4b8a-a634-1e9350958ed1.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 0xd214829871c2225c4474f49c65cd04a9beacd35e0fba37ea78d8d6235b1adee1. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:07:38Z), 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/USQX92302146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecf08e1b482aab83d4c3f528507c6356c5633f49a8430f75807387e3829f47d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USQX92302148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288dd65583029e5fd845e3b708e626a6b7aa32c596ac58b03f5012b86c8e1042. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USQX92302150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d27b7229725edc0c9131b3382213c2c57e52d1035a135f6eff55a43ffc6b573. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USQX92304854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d27b7229725edc0c9131b3382213c2c57e52d1035a135f6eff55a43ffc6b573. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USQX92304854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac0b73023cc2159f982f4a16981ad3ec832daab5dc5ad7728e96a2e98ead079. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USQX92305392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91801517cd4f2ea3373269c7347ec86af47cadf343d0757f691472dbc798048. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USQX92305657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb28712133154cb415b4cced9dfbfbe6b0a7c22abf8113658267dc02fe477f7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:04:09Z), 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/USQX92302149.