{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MPB5SQWTZE5R7OBGNQSHRN5ODL","short_pith_number":"pith:MPB5SQWT","canonical_record":{"source":{"id":"1204.3415","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-04-16T09:21:10Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e5fe56fc4211cd87b25e9b81340603c543e77918ab7237e2498a2695bf7c0b63","abstract_canon_sha256":"54e37666fe766204f2fa1593f24e849b31f96cea4e9c870a73da53bca55c5a5d"},"schema_version":"1.0"},"canonical_sha256":"63c3d942d3c93b1fb8266c2478b7ae1aee32399ab63416795a3da160bc673ef4","source":{"kind":"arxiv","id":"1204.3415","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3415","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3415v5","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3415","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"pith_short_12","alias_value":"MPB5SQWTZE5R","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MPB5SQWTZE5R7OBG","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MPB5SQWT","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MPB5SQWTZE5R7OBGNQSHRN5ODL","target":"record","payload":{"canonical_record":{"source":{"id":"1204.3415","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-04-16T09:21:10Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e5fe56fc4211cd87b25e9b81340603c543e77918ab7237e2498a2695bf7c0b63","abstract_canon_sha256":"54e37666fe766204f2fa1593f24e849b31f96cea4e9c870a73da53bca55c5a5d"},"schema_version":"1.0"},"canonical_sha256":"63c3d942d3c93b1fb8266c2478b7ae1aee32399ab63416795a3da160bc673ef4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:10.883521Z","signature_b64":"Jr282Vt2rEWt6obINsaWTcLsZ48Z+FuyTqDwySjSkeAJFT9t81hhn3cRDuzU+bwElMykjyMdjDODO3zqLrM/CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63c3d942d3c93b1fb8266c2478b7ae1aee32399ab63416795a3da160bc673ef4","last_reissued_at":"2026-05-18T02:25:10.883060Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:10.883060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.3415","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:25:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cIEd4i4GVhrFmiACVU65hKQxxy2Qg439ROeog+y8z+PMfwBt630ueuc5SFFY2T+NtpfWuEoWY94xtME0dc9+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:36:11.012296Z"},"content_sha256":"eaffd7c583ccad37f3c0a66645fba897e2cf1bbc9f380875129de9ab1c388dd9","schema_version":"1.0","event_id":"sha256:eaffd7c583ccad37f3c0a66645fba897e2cf1bbc9f380875129de9ab1c388dd9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MPB5SQWTZE5R7OBGNQSHRN5ODL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SPHERES, J\\\"ulich's High-Flux Neutron Backscattering Spectrometer at FRM II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.ins-det","authors_text":"Alfred Budwig, Dieter Richter, Franz-Joseph Kayser, Gerald J. Schneider, Hans K\\\"ammerling, Harald Kleines, Harald Schneider, Joachim Wuttke, Luis Carlos Pardo, Matthias Drochner, Michael Prager, Simon Staringer, Vladimir Ossovyi","submitted_at":"2012-04-16T09:21:10Z","abstract_excerpt":"SPHERES (SPectrometer with High Energy RESolution) is a third-generation neutron backscattering spectrometer, located at the 20 MW German neutron source FRM II and operated by the Juelich Centre for Neutron Science. It offers an energy resolution (fwhm) better than 0.65 micro-eV, a dynamic range of +-31 micro-eV, and a signal-to-noise ratio of up to 1750:1."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3415","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:25:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zgfMVWChm/XZ2cSVS3jLc1h26bBWzCkYlr8vzQbzhSR+wi8l+9LcZb8/elz39DV5WpV6kgAvP+65EDBZoBVFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:36:11.012665Z"},"content_sha256":"2aaf34120d5cfcc93d774b0cf4f8ac17ba6832a8bd2f28fbede58f8f13f7719e","schema_version":"1.0","event_id":"sha256:2aaf34120d5cfcc93d774b0cf4f8ac17ba6832a8bd2f28fbede58f8f13f7719e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/bundle.json","state_url":"https://pith.science/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-07T02:36:11Z","links":{"resolver":"https://pith.science/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL","bundle":"https://pith.science/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/bundle.json","state":"https://pith.science/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MPB5SQWTZE5R7OBGNQSHRN5ODL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MPB5SQWTZE5R7OBGNQSHRN5ODL","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"54e37666fe766204f2fa1593f24e849b31f96cea4e9c870a73da53bca55c5a5d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-04-16T09:21:10Z","title_canon_sha256":"e5fe56fc4211cd87b25e9b81340603c543e77918ab7237e2498a2695bf7c0b63"},"schema_version":"1.0","source":{"id":"1204.3415","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3415","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3415v5","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3415","created_at":"2026-05-18T02:25:10Z"},{"alias_kind":"pith_short_12","alias_value":"MPB5SQWTZE5R","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MPB5SQWTZE5R7OBG","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MPB5SQWT","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:2aaf34120d5cfcc93d774b0cf4f8ac17ba6832a8bd2f28fbede58f8f13f7719e","target":"graph","created_at":"2026-05-18T02:25:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"SPHERES (SPectrometer with High Energy RESolution) is a third-generation neutron backscattering spectrometer, located at the 20 MW German neutron source FRM II and operated by the Juelich Centre for Neutron Science. It offers an energy resolution (fwhm) better than 0.65 micro-eV, a dynamic range of +-31 micro-eV, and a signal-to-noise ratio of up to 1750:1.","authors_text":"Alfred Budwig, Dieter Richter, Franz-Joseph Kayser, Gerald J. Schneider, Hans K\\\"ammerling, Harald Kleines, Harald Schneider, Joachim Wuttke, Luis Carlos Pardo, Matthias Drochner, Michael Prager, Simon Staringer, Vladimir Ossovyi","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-04-16T09:21:10Z","title":"SPHERES, J\\\"ulich's High-Flux Neutron Backscattering Spectrometer at FRM II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3415","kind":"arxiv","version":5},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:eaffd7c583ccad37f3c0a66645fba897e2cf1bbc9f380875129de9ab1c388dd9","target":"record","created_at":"2026-05-18T02:25:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"54e37666fe766204f2fa1593f24e849b31f96cea4e9c870a73da53bca55c5a5d","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-04-16T09:21:10Z","title_canon_sha256":"e5fe56fc4211cd87b25e9b81340603c543e77918ab7237e2498a2695bf7c0b63"},"schema_version":"1.0","source":{"id":"1204.3415","kind":"arxiv","version":5}},"canonical_sha256":"63c3d942d3c93b1fb8266c2478b7ae1aee32399ab63416795a3da160bc673ef4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63c3d942d3c93b1fb8266c2478b7ae1aee32399ab63416795a3da160bc673ef4","first_computed_at":"2026-05-18T02:25:10.883060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:10.883060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jr282Vt2rEWt6obINsaWTcLsZ48Z+FuyTqDwySjSkeAJFT9t81hhn3cRDuzU+bwElMykjyMdjDODO3zqLrM/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:10.883521Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.3415","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaffd7c583ccad37f3c0a66645fba897e2cf1bbc9f380875129de9ab1c388dd9","sha256:2aaf34120d5cfcc93d774b0cf4f8ac17ba6832a8bd2f28fbede58f8f13f7719e"],"state_sha256":"b5c18569e2eb3b4bbe80b5a6a74523311fb64260a12dd71626ad72ffddc69b1b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BPX3iDogopuKP19vB76bFM/ruHcPxcBNIcHOtunUOuRUghz+GQrNCVsfi5h0M2KwRh8zGbKURk8Jk3NtVVgCDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T02:36:11.015100Z","bundle_sha256":"7141a344d239b716ba2aeda98ff8c6ab9c2fb4a016c5ca2a6506a5ddf8408153"}}