{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:EEADSGBLGICWEIN2X2TAVP2DMD","short_pith_number":"pith:EEADSGBL","canonical_record":{"source":{"id":"1810.05423","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-12T09:16:42Z","cross_cats_sorted":[],"title_canon_sha256":"5693303cbdcdf8215b93bcf4c4707d6c8c0a909699b36f61f0d7d34ff0011ec9","abstract_canon_sha256":"0b3675962229b12e9a6a917f481adaa94c1a641d4fe4354265f147576e18b39a"},"schema_version":"1.0"},"canonical_sha256":"210039182b32056221babea60abf4360e6f02c827690d9dddaed679fbd1b6c6d","source":{"kind":"arxiv","id":"1810.05423","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.05423","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"arxiv_version","alias_value":"1810.05423v1","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05423","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"pith_short_12","alias_value":"EEADSGBLGICW","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EEADSGBLGICWEIN2","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EEADSGBL","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:EEADSGBLGICWEIN2X2TAVP2DMD","target":"record","payload":{"canonical_record":{"source":{"id":"1810.05423","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-12T09:16:42Z","cross_cats_sorted":[],"title_canon_sha256":"5693303cbdcdf8215b93bcf4c4707d6c8c0a909699b36f61f0d7d34ff0011ec9","abstract_canon_sha256":"0b3675962229b12e9a6a917f481adaa94c1a641d4fe4354265f147576e18b39a"},"schema_version":"1.0"},"canonical_sha256":"210039182b32056221babea60abf4360e6f02c827690d9dddaed679fbd1b6c6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:30.641450Z","signature_b64":"ytorZPixzpoM75kMOSWcodwgiEmmLQMC2Y0Ufil0LMFDh6RZFT6TVK4GYZ91uU8z1rZ+QYJu7I8hNUcixTCGDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"210039182b32056221babea60abf4360e6f02c827690d9dddaed679fbd1b6c6d","last_reissued_at":"2026-05-18T00:03:30.640828Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:30.640828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.05423","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:03:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I7pXhzVDM5WZu7zD6SgVN69cRwQ22Z4bfu3WNYB9NgYVMAAHhpxJeyS0kw+umhJ3mwbl9uuGy+s9B7l7iVchBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T07:18:49.363390Z"},"content_sha256":"1ba2cd619cdae70ab8b90fb46f383f14485cefd9af86d0cc41e6031f930912df","schema_version":"1.0","event_id":"sha256:1ba2cd619cdae70ab8b90fb46f383f14485cefd9af86d0cc41e6031f930912df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:EEADSGBLGICWEIN2X2TAVP2DMD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DeepScores and Deep Watershed Detection: current state and open issues","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Ismail Elezi, Lukas Tuggener, Marcello Pelillo, Thilo Stadelmann","submitted_at":"2018-10-12T09:16:42Z","abstract_excerpt":"This paper gives an overview of our current Optical Music Recognition (OMR) research. We recently released the OMR dataset \\emph{DeepScores} as well as the object detection method \\emph{Deep Watershed Detector}. We are currently taking some additional steps to improve both of them. Here we summarize current and future efforts, aimed at improving usefulness on real-world task and tackling extreme class imbalance."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05423","kind":"arxiv","version":1},"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":"2026-05-18T00:03:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nRDcTMrMOjxnpzRQ9kgHFOCHMGkwnjyWrzbMP9n9HgszfnZjERAI92S7JFDWXX8AQIz4w8a9hLTt9D7arEVJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T07:18:49.363758Z"},"content_sha256":"4a67422a0086a64661fe01d473c9635323245aad2c0c85bf3910de62dbd2477b","schema_version":"1.0","event_id":"sha256:4a67422a0086a64661fe01d473c9635323245aad2c0c85bf3910de62dbd2477b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EEADSGBLGICWEIN2X2TAVP2DMD/bundle.json","state_url":"https://pith.science/pith/EEADSGBLGICWEIN2X2TAVP2DMD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EEADSGBLGICWEIN2X2TAVP2DMD/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":"2026-05-20T07:18:49Z","links":{"resolver":"https://pith.science/pith/EEADSGBLGICWEIN2X2TAVP2DMD","bundle":"https://pith.science/pith/EEADSGBLGICWEIN2X2TAVP2DMD/bundle.json","state":"https://pith.science/pith/EEADSGBLGICWEIN2X2TAVP2DMD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EEADSGBLGICWEIN2X2TAVP2DMD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EEADSGBLGICWEIN2X2TAVP2DMD","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":"0b3675962229b12e9a6a917f481adaa94c1a641d4fe4354265f147576e18b39a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-12T09:16:42Z","title_canon_sha256":"5693303cbdcdf8215b93bcf4c4707d6c8c0a909699b36f61f0d7d34ff0011ec9"},"schema_version":"1.0","source":{"id":"1810.05423","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.05423","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"arxiv_version","alias_value":"1810.05423v1","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05423","created_at":"2026-05-18T00:03:30Z"},{"alias_kind":"pith_short_12","alias_value":"EEADSGBLGICW","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EEADSGBLGICWEIN2","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EEADSGBL","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:4a67422a0086a64661fe01d473c9635323245aad2c0c85bf3910de62dbd2477b","target":"graph","created_at":"2026-05-18T00:03:30Z","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":"This paper gives an overview of our current Optical Music Recognition (OMR) research. We recently released the OMR dataset \\emph{DeepScores} as well as the object detection method \\emph{Deep Watershed Detector}. We are currently taking some additional steps to improve both of them. Here we summarize current and future efforts, aimed at improving usefulness on real-world task and tackling extreme class imbalance.","authors_text":"Ismail Elezi, Lukas Tuggener, Marcello Pelillo, Thilo Stadelmann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-12T09:16:42Z","title":"DeepScores and Deep Watershed Detection: current state and open issues"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05423","kind":"arxiv","version":1},"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":"sha256:1ba2cd619cdae70ab8b90fb46f383f14485cefd9af86d0cc41e6031f930912df","target":"record","created_at":"2026-05-18T00:03:30Z","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":"0b3675962229b12e9a6a917f481adaa94c1a641d4fe4354265f147576e18b39a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-12T09:16:42Z","title_canon_sha256":"5693303cbdcdf8215b93bcf4c4707d6c8c0a909699b36f61f0d7d34ff0011ec9"},"schema_version":"1.0","source":{"id":"1810.05423","kind":"arxiv","version":1}},"canonical_sha256":"210039182b32056221babea60abf4360e6f02c827690d9dddaed679fbd1b6c6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"210039182b32056221babea60abf4360e6f02c827690d9dddaed679fbd1b6c6d","first_computed_at":"2026-05-18T00:03:30.640828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:30.640828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ytorZPixzpoM75kMOSWcodwgiEmmLQMC2Y0Ufil0LMFDh6RZFT6TVK4GYZ91uU8z1rZ+QYJu7I8hNUcixTCGDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:30.641450Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.05423","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ba2cd619cdae70ab8b90fb46f383f14485cefd9af86d0cc41e6031f930912df","sha256:4a67422a0086a64661fe01d473c9635323245aad2c0c85bf3910de62dbd2477b"],"state_sha256":"6af1726b4c696cd2f11714817d94b863b66c45c6b9b0518fd3ce002d69feea3b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AMCVF48mvjSQItedxk9uERuNi4ITkorDhBQ+lRmiH6rgbt5WqtUy+F6li7nBW1B9rz8RRA1mtpwa3Nm3/wcUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T07:18:49.365968Z","bundle_sha256":"9508118afc080550d52a892a569b959419f9ec9074be227af3197d876faac4a7"}}