{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:BETSZHYVE5QVZ5RMYIVUEUZ3BF","short_pith_number":"pith:BETSZHYV","canonical_record":{"source":{"id":"1412.7684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2014-12-24T15:21:39Z","cross_cats_sorted":[],"title_canon_sha256":"6132db5a0d710b63bf00a6eb1e21bcfe48feca1bd8ba417a3a7106146dd55805","abstract_canon_sha256":"409a0c8f8719b01346c08ecea12ecb42ecf1939fd0757ba550f05ba85519d6a5"},"schema_version":"1.0"},"canonical_sha256":"09272c9f1527615cf62cc22b42533b096b404a0527015d3818550dd508d8ff50","source":{"kind":"arxiv","id":"1412.7684","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7684","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7684v1","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7684","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"pith_short_12","alias_value":"BETSZHYVE5QV","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BETSZHYVE5QVZ5RM","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BETSZHYV","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:BETSZHYVE5QVZ5RMYIVUEUZ3BF","target":"record","payload":{"canonical_record":{"source":{"id":"1412.7684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2014-12-24T15:21:39Z","cross_cats_sorted":[],"title_canon_sha256":"6132db5a0d710b63bf00a6eb1e21bcfe48feca1bd8ba417a3a7106146dd55805","abstract_canon_sha256":"409a0c8f8719b01346c08ecea12ecb42ecf1939fd0757ba550f05ba85519d6a5"},"schema_version":"1.0"},"canonical_sha256":"09272c9f1527615cf62cc22b42533b096b404a0527015d3818550dd508d8ff50","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:33.266554Z","signature_b64":"0/wltnrodB+gxADKBcG2DIYhK6cyvFb6q8ouryN4q10z4oT+Y5SvBxVWXZ1JZAchjMjCOZ45q2ojZgLumLGlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"09272c9f1527615cf62cc22b42533b096b404a0527015d3818550dd508d8ff50","last_reissued_at":"2026-05-18T02:30:33.266152Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:33.266152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.7684","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":"2026-05-18T02:30:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+FsndlRu/SH0Q3HqPCTcw7H4xWZcusFLCCdyH2R85OfvFdxiBklCGZSfU4WgfdNr2ojuAsyHLkIuUibMNRzaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:37:26.025837Z"},"content_sha256":"2dd7f73b3bf1be86ecd471f5aa0dbf36a1d24f3d3e741357ece5bfcd22a2d33e","schema_version":"1.0","event_id":"sha256:2dd7f73b3bf1be86ecd471f5aa0dbf36a1d24f3d3e741357ece5bfcd22a2d33e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:BETSZHYVE5QVZ5RMYIVUEUZ3BF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Switch Architectures for Pre-configured Backup Protection with Sharing in Elastic Optical Networks (EON)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Krishanthmohan Ratnam, Roshan G. Ragel, Suthaharan Satkunarajah","submitted_at":"2014-12-24T15:21:39Z","abstract_excerpt":"In this paper, we address the problem of providing survivability in elastic optical networks (EONs). EONs use fine granular frequency slots or flexible grids, when compared to the conventional fixed grid networks and therefore utilize the frequency spectrum efficiently. For providing survivability in EONs, we consider a recently proposed survivability method for conventional fixed grid networks, known as pre-configured backup protection with sharing (PBPS), because of its benefits over the traditional survivability approaches such as dedicated and shared protection. In PBPS, backup paths can b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7684","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":"2026-05-18T02:30:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+TOopA8a5LrJhjn2uQFz0egGrHT69eNjEX17jiqf211og38IxwaovgEsQWwiCODSJnDnxymERJdcS8zBPLN2CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:37:26.026182Z"},"content_sha256":"4a7b6979b5ac0c50eb90172230bdf0f34a87c0c30674c794fe297c2eafdbb0d0","schema_version":"1.0","event_id":"sha256:4a7b6979b5ac0c50eb90172230bdf0f34a87c0c30674c794fe297c2eafdbb0d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/bundle.json","state_url":"https://pith.science/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/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":"2026-05-31T16:37:26Z","links":{"resolver":"https://pith.science/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF","bundle":"https://pith.science/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/bundle.json","state":"https://pith.science/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BETSZHYVE5QVZ5RMYIVUEUZ3BF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BETSZHYVE5QVZ5RMYIVUEUZ3BF","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":"409a0c8f8719b01346c08ecea12ecb42ecf1939fd0757ba550f05ba85519d6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2014-12-24T15:21:39Z","title_canon_sha256":"6132db5a0d710b63bf00a6eb1e21bcfe48feca1bd8ba417a3a7106146dd55805"},"schema_version":"1.0","source":{"id":"1412.7684","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7684","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7684v1","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7684","created_at":"2026-05-18T02:30:33Z"},{"alias_kind":"pith_short_12","alias_value":"BETSZHYVE5QV","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BETSZHYVE5QVZ5RM","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BETSZHYV","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:4a7b6979b5ac0c50eb90172230bdf0f34a87c0c30674c794fe297c2eafdbb0d0","target":"graph","created_at":"2026-05-18T02:30:33Z","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":"In this paper, we address the problem of providing survivability in elastic optical networks (EONs). EONs use fine granular frequency slots or flexible grids, when compared to the conventional fixed grid networks and therefore utilize the frequency spectrum efficiently. For providing survivability in EONs, we consider a recently proposed survivability method for conventional fixed grid networks, known as pre-configured backup protection with sharing (PBPS), because of its benefits over the traditional survivability approaches such as dedicated and shared protection. In PBPS, backup paths can b","authors_text":"Krishanthmohan Ratnam, Roshan G. Ragel, Suthaharan Satkunarajah","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2014-12-24T15:21:39Z","title":"Efficient Switch Architectures for Pre-configured Backup Protection with Sharing in Elastic Optical Networks (EON)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7684","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":"sha256:2dd7f73b3bf1be86ecd471f5aa0dbf36a1d24f3d3e741357ece5bfcd22a2d33e","target":"record","created_at":"2026-05-18T02:30:33Z","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":"409a0c8f8719b01346c08ecea12ecb42ecf1939fd0757ba550f05ba85519d6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2014-12-24T15:21:39Z","title_canon_sha256":"6132db5a0d710b63bf00a6eb1e21bcfe48feca1bd8ba417a3a7106146dd55805"},"schema_version":"1.0","source":{"id":"1412.7684","kind":"arxiv","version":1}},"canonical_sha256":"09272c9f1527615cf62cc22b42533b096b404a0527015d3818550dd508d8ff50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"09272c9f1527615cf62cc22b42533b096b404a0527015d3818550dd508d8ff50","first_computed_at":"2026-05-18T02:30:33.266152Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:33.266152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0/wltnrodB+gxADKBcG2DIYhK6cyvFb6q8ouryN4q10z4oT+Y5SvBxVWXZ1JZAchjMjCOZ45q2ojZgLumLGlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:33.266554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.7684","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2dd7f73b3bf1be86ecd471f5aa0dbf36a1d24f3d3e741357ece5bfcd22a2d33e","sha256:4a7b6979b5ac0c50eb90172230bdf0f34a87c0c30674c794fe297c2eafdbb0d0"],"state_sha256":"3a9b3f809864f8b0e9b672509b1c51cd6ae46fc7e37cb130ed29a371db7dc545"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tGFDNivMI/XEPTf5kLPP5mICn/oDzmV83/Houl5LcQ51BygTiqPHV57FMEIm5/NVcUIMnO33ATCmtH9eaclcDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T16:37:26.028350Z","bundle_sha256":"63704ae450de6d2a53df957c1151bc358592d8be325ae69fe27d85ca7ccc0c87"}}