Rosalie Jo Cunningham (born 25 April 1990) is an English singer-songwriter that started with the band Ipso Facto in 2007. After their break-up, Cunningham started a new project named Purson in 2011. H
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 0xcf7b03fe95f2f230eb0c9b3a608ddbd42bf0ccef0c47bf0db84c7b113fe8e5bd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1446ff94-6965-437c-883e-b21e9f0524d9.json and https://artists.proofprofile.net/proofs/artist/1446ff94-6965-437c-883e-b21e9f0524d9.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 0x8dd2ad04a41ea3544a43a22f4d02aca4804003036d234dfb5419150d42986a79. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:16:39Z), 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/GBBLY1902573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e17b2ba6cf26c040eddee2d08b969e795797158cbab5bdcea1752ebaed4d90. 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/GBBLY1902574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394250b6c02e531536391089235c843211d2f9cd47ceee48ff77210a0be6ccf6. 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/GBBLY1902575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3968822e55f5d182f5a2e6105f6b796a018bf8cec20ad41f0dc957f70b6bee8b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBBLY2200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5ae1e6ab8e198946e3db9a3bc59192dd5083df2a256d6ea84864e78dc34b5a. 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/GBBLY2200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d60955128a5a670b23e78c76cfb56a06acd50fc0c58cbcc5297749a0f2a2db. 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/GBBLY2200513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c68d883a2d2584bfd3515c67e64c15a49b7995fe61b9743ec935c1b42bb9966. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBBLY2200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d3dac1c9db3058ce44ae5a7f96a4c584483795a73e1ed747838ad1aba13687. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:40:18Z), 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/GBBLY2200515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8664dba95e36b7bfd9f4adc2822cbe56023ac4f1449d655ae113046b8e3bcf42. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBLY2200516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6425d04271a82fa109cd5872d04b00979719ef54b715da5e7d20ff20331c786. 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/GBBLY2102100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95ae5394785382646353e40f76da329b302df8ba4095df2fbacfda5a01b9b87. 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/GBBLY2401625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a43d567e61bc2791b77fdc81c3c8f91ada01f3b0f5eb57570b2e9bef2b22f9. 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/GBBLY2404060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56db91c4ae68840ba9c702030029e9edc0d083e32debab29aadec0d679e1be1c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBBLY2404064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9094f939aa8b30925f47c37466a2ef2abebb5b01c15e765b2480dd7b44304954. 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/GBBLY2404065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603d6480a832d4716b215c3af42f827a2b247f19c6200118973f49dcfc45fd94. 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/GBBLY2404066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ace6b8adb5421e705c286420c5b3a3fad66924dcab7831344f0ef0705dc1fec. 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/GBBLY2404067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a91659d3d1876ec1df8b5210fedddb1c90dfcae64e0ce5ec87d74f986525e7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:45Z), 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/GBBLY2404068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f18a7969b6011f49afb1156076ffde0765130895200d23dfc962560bf59531b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBBLY2401626.