Ann-Louise Hanson (born in Kristianstad in 1944) is a Swedish singerDiscogs who has been involved in the music industry since 1956. In 1960, she had her first hit, "Är du ensam i kväll?", a Swedish v
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 0x96603b60b346f3c88b176e46fae19a130d312bd711289138c7227109f78a36c1. 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/a4203c9f-2b11-4fd2-aeee-c04a73adbab4.json and https://artists.proofprofile.net/proofs/artist/a4203c9f-2b11-4fd2-aeee-c04a73adbab4.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 0x307f704af020de087f80e855a0d1da418117e2d6d973bc5acec01ef8e0c14253. 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/SEPQA1200493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c50e5312a48f4ec5adebd490c9c1ce278a08c8dc98bac1cc3601825ad745a. 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/SEPQB6611151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a00cb78833f97c6355e07af683a3c3badbb5fff7b3cbf20c4993a966e6fdfb. 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/SEPQB6603100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0917dfdf64835bb8ea866a1f8fcf5e9027905b42fbe10a811eb84db34db316f5. 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/SEAMA0600726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09a958a541772424f423144b59de00db1d56ac213d5d2065b980384f58d547a. 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/SEAMA7830100.
Sommar sommar - gröna ängar & böljor blå
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b97172b6caea0ea31976fb60ddd12f9598d20bbf5befe74db940082461b6bbf. 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/SEPQB6301090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98b417dfb5bf2efe60f201ce9e5b842879ce34f2e5efd56240fa36d62b74a37. 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/SEPQB6212050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79542fad7a9e442751bd329f19b23bdfe6e621963eb934444bb51704a09c823. 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/SEAZA6803020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689e92d6b7a657bf4ba84a11fd9eebde0cf58d471d8a52a59ceb3de6010cbc4c. 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/SEAZA6803010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689e92d6b7a657bf4ba84a11fd9eebde0cf58d471d8a52a59ceb3de6010cbc4c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEAZA6803010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eb9136ec9c95df1b45ec958bb843a094633c91ba40149d839d38b050fc4e9b. 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/SEAMA0600707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ee980e840dff122cf103414d6220ee90fc94ed6cb4969d9a4d9b1a062427f8. 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/SEAMA0600720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7f3037b3827fc958e373c4c5aed6c8de9e4d2031ab2e695904a6bbe8f5d45c. 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/SEAMA1001770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ba58c847efeace270ad188f36e9da5b1bffa3b94c1c3e424e8228bb2346ba7. 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/SEAMA1001771.