thumb|Caroline af Uggla sings her version of Janis Joplin's "To Love Somebody" ("Att älska någon") at the Malmö Festival 2007. Caroline Thérese af Ugglas Liljedahl (born 7 April 1972) is a Swedish si
{"copyright_id":"0xf43c1d2b90d7ca9e396c0b454ee0b514c6ab33be39e70e7ddeee3dae4f1df10d","name":"Caroline af Ugglas","registered_at":"2026-06-12T14:27:08Z","symbol":"NIM0325242","token_address":"0xef366beb83b71b4b337feaec6f63c3a133abadae","type":"artist","uuid":"fc7c0061-a9a3-4af8-bdcb-c02d33620e68"}
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 0xf43c1d2b90d7ca9e396c0b454ee0b514c6ab33be39e70e7ddeee3dae4f1df10d. 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/fc7c0061-a9a3-4af8-bdcb-c02d33620e68.json and https://artists.proofprofile.net/proofs/artist/fc7c0061-a9a3-4af8-bdcb-c02d33620e68.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 0xdf83e0f28de668f2f36fb5db181c78b3fc0b49a4189a75ba29333fec111bd3db. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SEBPA0600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc7ad86c3393be19236daf9415e9dcbef64118145a91b0064223d564068bbb4. 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/SEBPA0600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c482dd06a64ce932d4a73c6d2ec31ec34e8fa3b576889e7d5f9473b1d7cc1. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/SEBPA0600176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9539ce9cf2b7a3a1000f9dd2174ce3df59d1d06f63ea2b4c568baecbf86d0960. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYPO0900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7480fc57a5771b1af4ce7264e6e1ff0057a93e8b72a052c5489b2724c3d439. 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/SEYPO0900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f295474285eec87a97d18be8ee108938495ed89ba218c94a4be47c02185a4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEYPO0900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507fcc2685e6c98aa9294073f4e907747de75f08a2e24278ba3b5353482fcb08. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYPO0900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701e791f21b6d639d35c0bd141237d34077f4f8be3875cbc32175081735dcd2c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/SEYPO1000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8428ad19c68e4f075389de1660c20269e148f297a4bb64de7ee018e4ad1b32f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SEYPO1000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda7f9b6dc7d53a14bef5fc9a4df1981d8a18174c1b9083351db70a97028116d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SEYPO1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f54b38a29028db4e117544f5561249cb4ab495712008d0b1f36a41eff28e3f. 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/SEYPO1300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895ade367afdddb9bb2284c6826a4b0c780617815f05a0e2207dd9cad1b70ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEVGT1303105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895ade367afdddb9bb2284c6826a4b0c780617815f05a0e2207dd9cad1b70ac. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEVGT1303105.
Rice, Lloyd-Webber : Everything's Alright
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d401d8e0c055bd553b77e472166bcda6724dc45a7a8ff845df7c1701b9a13d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQA1200211.
Våra barns godnattsånger - älskade godnattvisor & vaggvisor för alla barn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895ade367afdddb9bb2284c6826a4b0c780617815f05a0e2207dd9cad1b70ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVGT1303105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40c9106b0c051738b8193a04b191b5d415e1d54e6e68787929cb874a97c1e92. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SE4SA2300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3148ed2cdeaaccf34d52c3595025a4d2855c9096b979e0044f4b7bcfe6be03fe. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SE4SA2300202.