Selma Ottilia Lovisa Lagerlöf (, ,"Lagerlöf, Selma" (US) and ; 20 November 1858 – 16 March 1940) was a Swedish writer. She published her first novel, Gösta Berling's Saga, at the age of 33. She was t
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 0x3645dc1ec3874196172d0f40faea4a8aeb50465f03502abd526c1f14210ec466. 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/e5f4abe6-f8c8-4312-9b96-108b351cfd30.json and https://artists.proofprofile.net/proofs/artist/e5f4abe6-f8c8-4312-9b96-108b351cfd30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 01 - Nils Holgerssons wunderbare Reise
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 0xdf8bad1a61a5a50757154211a7baae8e265c7fb4d8e7c3b625100b8f928fd06a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DEWM52433890.
Kapitel 02 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819668d44032098ff8ccb375b25f9338278f3cc8d096c61cd4eba057a4099a82. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/DEWM52433891.
Kapitel 03 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afe9aa3c109427920fde228f7c509b3a3001805607917f7fbd3839809bc6731. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEWM52433892.
Kapitel 04 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afc309e2f583158fcf30989d7fe23ef21d556e23e6a52e2d2cae743b21f4fd2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEWM52433893.
Kapitel 05 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841d63097c2f95f9c6cf5e7ee7ec34569d325f75c3d33583ca8e3c95d41d8bea. 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/DEWM52433894.
Kapitel 06 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa593ee153c3320be0a86aebe4c189b17afde74a494448cfe69ef9bd014e49a42. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEWM52433895.
Kapitel 07 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3074fdc6afe877cf7b34fc9159b4797e799ff7c8defadeba76742880f61542c1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEWM52433896.
Kapitel 08 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6977066eb811299a424b83e832fe0a32447d1b35d4c6cf0c46e8afdba3dedd0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEWM52433897.
Kapitel 09 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d52ca049a43745d67a64ad8645e9187eefe5a33012e939b6ee5c5e93925feea. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEWM52433898.
Kapitel 10 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946ccbfeec2334a6d7bebaec275f0fe40a2279eacd017b68fd9eb735130d6d66. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEWM52433899.
Kapitel 11 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6215cfc019fb8fb15ec329fdaea7aa69b92357567ef329a71b57b291283432ff. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEWM52433900.
Kapitel 12 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d4460d8b15025af8d81ae0c71826451ba843d7ef77b48498bc9a177ada0ae9. 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/DEWM52433901.
Kapitel 13 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6228e16f5c6775720fe58ddebf357477d7ce90f4ad7d37728d936912424d739. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEWM52433902.
Kapitel 15 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe352953d9aa208bb92e8beb71f218a7aa568b424d08b26c1e04eb4a0f71745a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEWM52433904.
Kapitel 16 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f63669f1e6949a787c6078d84914de66fe603246801c53e2d6e541eb4b7eca2. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEWM52433905.
Kapitel 17 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa45d916404626d0d244f1a35bbbb34bb8403587f5fa084c3f80d694c8e01a94. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEWM52433906.
Kapitel 18 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e52749f86051d33d9b9989c2c12fb25e03db2dfbcbbf53161b780239c8be9a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEWM52433907.
Kapitel 19 - Nils Holgerssons wunderbare Reise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c054c67e0884fd94ca66ea5c56a6da608d2f30d7b4dbd3bad3341e8597dbc85. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEWM52433908.
Wunderbare Reise des kleinen Nils Holgersson mit den Wildgänsen