Frvrfriday (stylized in all caps) is the stage name of Tommy Ruhingubugi, a Rwandan-Canadian R&B singer, rapper and record producer. He is best known for his 2020 single "Window Shopping" which featur
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 0x5767f7bca327b114e20cdb19838ec98651b54dda82ceb58e61827d68980abd8e. 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/12013429-719b-44df-bb7d-3236bfc408f6.json and https://artists.proofprofile.net/proofs/artist/12013429-719b-44df-bb7d-3236bfc408f6.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 0x64e144fc999ca5c21a067923e45a3850f0f564af93ecc2c20f74b33c553e2f99. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USUYG1167068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a947faea3de16d833f69161da58a2e780f95dbc0b2bdba2ec29ccb8e5efd55c. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USUYG1168280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1f48b127100485f2d228357e6ef891ceb6d7f1418e34ffaec2b01b8f99effc. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USUYG1168281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5d79fdd86e4a8a5791e7f44dbf3407feb6f136035efe5414e0f39ce41da8ba. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USUYG1168282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae45548973c853fbb9652ed11ad6a834830283df88c7d3b9a345ed516cb2831d. 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/USUYG1168283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88160970adddb548bc0ceb04092a148a2bbe67e0db6909ff779c0b7ad2eb77d8. 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/USUYG1172136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493fbe364a47449d07d8f0663991107716659ff4257c9d8a18ed4251286ee1c1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USUYG1172137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03c60c0bf5ea69889ba1e61a04ca5b28910007971c311359aa26ce090b05311. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:31Z), 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/USUYG1172138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e14d4249eb6e661804d4fd945dc0aa271e9a2ab9deb92214ec1d36f8fd2c084. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1172139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d90e0ada9ea233ed02e98c05bbc6241c003bfc8ff4d910b3b656f90e5c28969. 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/USUYG1172140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501be73c47d477999ff2ac23cc1e695cd6389e97599cf0ae64a556c3fdaa98f4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:33Z), 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/USUYG1172141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac192e8765316c58f74d7710a378d3e8080b5c0a530f96297b0db4c819b801. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USUYG1192969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a47c433a073b54e415138aad7b53fc29bcf31c1ca0a3a9c58836c9be7cc061. 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/USUYG1198678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2e07b99385ace311beff8f6325cfce855fd9bb51469394e61c878cfe14cc34. 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/FRX872382082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db7e89510e19fa57d740db63c1b2dac54cc9a4579fb36f3a75fe7525a86b251. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DGA0P2325340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ef597ffc0f39960398a115510ffef9f854dd6c21ef905761a3b042ae64fbae. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DGA0L2368960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf78aaa29cff2ec85c901ce4031c831d169d2d6e75e3bba0aac0ebf8f3ea3a8f. 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/DGA0L2304944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34f9548e9329f669318759f7078428f538ece02210dd84e3ab355875a44a02. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FR2X42413373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42e1d0aadadf77baf3837ff775a9b144f7fcc9b740781a9dc912690f98cd792. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPEW2495589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16123e0293bb9a449765ef329f02fd2692324da82685fcbcd1df460e50f05e4a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CAW112100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16123e0293bb9a449765ef329f02fd2692324da82685fcbcd1df460e50f05e4a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAW112100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe44854b85bc9bfdd65d264be8187e8ec31ce1298787e31215c565facec3565. 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/QZDA62554943.