thumb|Rivera posing with her daughter Charlie in 2020 Tammy Rivera Malphurs is an American television personality, singer, fashion designer, and businesswoman. She is a former cast member of the VH1 r
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 0xf10547c39d9a76978f4d5ba7b424db9bd9d501cbf785ba4c6dad2a133f66e9bc. 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/0f1393fc-9f5e-446a-b64f-3ec2d3c57bd1.json and https://artists.proofprofile.net/proofs/artist/0f1393fc-9f5e-446a-b64f-3ec2d3c57bd1.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 0x198b9ee71d262e18565aaf940b7a25d53ea0974fa66d979aba8ac9134260d02f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZ9EM1700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ca71a4eeb0c5258cd8ea524089ec69fb0851d1684bc85cae1a7e295fde0e6e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ9EM1700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d426a0550e6ef4ca13d43622c6e1d303ab061b5f476227e132ae96d713b725a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ9EM1700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f7bbfc0212df4cd01b747773303b75a8a036f3f9ae29727725ce718931f18f. 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/QZCE61838722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c216589070ee0102dbdf5b236f66b758ea7c8dbf7c483d92c9c0c44c100ed75. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:39Z), 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/QZCE61838723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b689f19c7328d280c67aa839dd221fe36fa7a2f9fbb36c209d4555ac8241b0. 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/QZES82055902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa288fcaa7ab7db59d47aab4fd5b986871a48677eb36735e99a8df02be19b68f6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ9EM2106118.