Camille O'Sullivan is an Irish singer, musician, and actress. She is known for her unique, dramatic musical style and covers of artists such as Radiohead, Tom Waits, David Bowie, Nick Cave, Sinéad O'C
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a97693db32ac3d2f9fe9c1f062cb9f9acbe18cb155fc5aa408a787c053b4d8c. 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/d7138857-1a6c-470e-b7b7-3401f021d9f1.json and https://artists.proofprofile.net/proofs/artist/d7138857-1a6c-470e-b7b7-3401f021d9f1.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bcfdb8a32aee677e1d2249006961f29ea1c9857b668b8f53e451bf353eeafa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/IEDAS0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3876aa082fcd588895a575c20144eae94f98d14fe14fd2bf750bc3dc5617c44b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/IEDAS0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa5c42c7a22e59325e06883b45274f0f912b97172667a9474dd754fd3a7540. 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/IEDAS0800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae4bdbb19b24a097176da01f8644e4933b3295eea0855e452fc1cadf2931292. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/IEDAS0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7d495e043de030804619f84c7e1f6d1921781cc5502f0ac512843fb71e3517. 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/IEDAS1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180fe87ef4187982eb15290fe201e29d0026546ba8b9aa3d4c48f68d21dda2b7. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/IEDAS1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b2265c10f20c8b2bf42720072c3cefafa6ff7f1354d3095bd96b63e4503a0c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IEDAS1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf900b00b1daac3541befb54fded9bf66088a9f8feac70cbbe4bc8c608597e585. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/IEDAS1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47042592bf9c36d8d2c2a2e844c7d9a6a2969cf6ab521587c82ed2791a6218b7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/IEDAS1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434eff4e2dfbd6985921a8d7d5a417ea51ece71b7a1587c35e8b8ccf56e2bbaf. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/IERBW1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e112003791e149fdaaf5360fbfede6165f60f0de99210f5cfb992f53b4e5b3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IEDAS1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdffa329bd4e281c1e74aacc82118d79ab1b746156012130860a362f37d01e5e. 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/IEDAS1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ad72e8465985e24d20ca7b91ebf046fed3ae0bccbd0e8993d6d4719e910fb7. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/CZD700964007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01b7c0865c0b9d368d2c24ae532ab6c21da9f78c342651979ac7fb7717bbb4b. 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/CZD700964008.
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Kronika 30. Przeglądu Piosenki Aktorskiej
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112292cd7d0169d409010e1c70794587f3be61161c9b1f40359d63a795bf0105. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/PLA290900175.