Louise Hoffsten (born September 6, 1965) is a Swedish songwriter, musician and singer spanning several genres, notably rock, blues, folk and pop. Biography Hoffsten was born in Linköping, Sweden. Her
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 0x71db849769e951e34081c5ef885cf7782daad1a48e2a7897f3a64618546023b2. 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/f3e8a5f8-0bd1-4a83-bbab-7ff30e0b17b3.json and https://artists.proofprofile.net/proofs/artist/f3e8a5f8-0bd1-4a83-bbab-7ff30e0b17b3.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 0x9ca82433eb0d24b175a8aff943b2c3408d53828388a19a4dd132401bda0b441c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SEBMR9369010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4704acb38bcfd34f9a868036eb4fc33623c8bd7c9879392e11c418b4433c6e. 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/SEBMR9369030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40592d55ce232691698e0a8e381ec66ec817e18dbaa0687fd8d2f728c38cd491. 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/SEBMR9369040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9a3ab0291c3aec9d377f507a0feac62b338d1160daa1df48fb7c98bca4706a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEBMR9532010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2553874ad2a040e4e6c859fd5baf6be116b2d1d00d522901b581cb300692399b. 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/SEBMC9655110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf399f4c99ee16ebb2cc1496fb5a1f11fee4411aa296160b8ab7d30769cf1cdd9. 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/SEBMI9369020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bd70f1f4045de4279bbd908f3a2bb53268e9c2c17aa252cf43ea8c3a94dbf9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USMIR1500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e5c3caf4ca28320e116ed7ea699d1582e43f2f5da534fb9882f6ce1d0a3f00. 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/SEPQA1101525.
Only the Dead Fish Follow the Stream - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace09d05c24fe1d0c2389c737a38e8c4481b6fde0487a6af9b9fd43745d45441. 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/SEPQA1300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66a0fdc92ea3184c989d536ccbec486be200e7021fd410214c1d2681567ed19. 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/SEXCH1500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcaa0eb2d37a69cac1371f293f585e305d418bcbd13c63b68964010f6891114. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEXCH1800902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e9b69e65dc7216f066890fa78171b9deb7cf471806d385ed049e9ecd46fb20. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEYML2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a70c3486eb3a5f33a459407d9025d52743b6731cf2ea222d3dd4ecb208b4bc2. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:24Z), 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/SEYML2500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace09d05c24fe1d0c2389c737a38e8c4481b6fde0487a6af9b9fd43745d45441. 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/SEPQA1300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbae22c4874462bbf5d3135b731d7e621da7f5b262cee3af33fb9aa4336a6c96. 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/SE5752466513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ea014b713cd5759b40b520768e5dbc722abc024040ceca192c4f2f0074aaaf. 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/SEAMA9847060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f433f3b467c6becbb2341251b7835108a5157f8366b5c6ae190eb3049b3cdf1. 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/SEAMA9847130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7799fe89396f5a4a747f2a6ff8bf761152c259584409a77bdf59ab1eb8f6e327. 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/SEUM70500106.