Florence Valentin was a Swedish pop-rock band from Stockholm. The band existed between 2002 and 2010. Both the lyrics and music to the band's tracks was made by the band's lead singer Love Antell. The
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 0x86f6bf6a8e7d6d7bfa1e85c6f48544b70a07ac950b0fd7db37b2b3b033c30bdb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/857cd4c9-299d-4f35-a249-1803f3d75b90.json and https://artists.proofprofile.net/proofs/artist/857cd4c9-299d-4f35-a249-1803f3d75b90.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 0x4b9f811f9c68064c38388536ce2a8f8461d3141c2e22a2e095aab63a91b6d402. 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/SELAA0300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b1bf93875836099af07eb9625c935dcd20a836ba53aa70f4d3324e5232f0d1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:50:16Z), 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/SEVGT0702402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378cf683740fb2d51aca967b8fbb5872a6257ad604f9f812aac0ac2807445c12. 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/SEVGT0702405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4197ab4008797ca39f0adc68af0834036b3b6fc4ab5181dfe82b06cc1063c9. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:41:33Z), 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/SEVGT0702409.
Jag är hellre blind än ser mitt liv utan dej
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1531f8b7b046a3f93767743a1f095c4374e6cd80e61eb12dbff5c841ba04e5b4. 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/SEUHA0902080.
HITSVILLE HANINGE - Samlade Spår 2003-2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c02fde15c652da5684300b408abeaa61084ff16e19e78b03efa6f9f6d06dcc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVGT0702401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5f93c9e4de09184aec3af5cb5bac969da953c6ba46c89624e76ee03fb543bf. 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/SEUHA0902010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e45aad0100ffec122e256120933026f690fe18acf868ec018f28b552c3c511f. 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/SEUHA0902020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d940c07acacbd90405f629e1de16a82069eca4c9c4f6db8f7f51066995035b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEUHA0902040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378cf683740fb2d51aca967b8fbb5872a6257ad604f9f812aac0ac2807445c12. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEVGT0702405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa473b6ab345a9fc72dc922562c8193269dcd5bdd6e171da31175babea27f0fed. 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/SEVGT0702403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5d8bdc6a43af881298643a5eb53aabef6fe471816339200f30bfb5a5d6206e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEUHA0902050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973939569c9c06747e693325584a7293fd5ce9db898ceb28eb48d0546f484629. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEUHA0902030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28afa92fdab05f089a0fabbd6fe3549ecb36302c7cb8ad4c3455562b2201a67a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SELAA0300402.
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