{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:Q4PQ5UAONXNGT3BERWHRNXVCYJ","short_pith_number":"pith:Q4PQ5UAO","canonical_record":{"source":{"id":"1502.07090","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-25T09:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"ed4f8e929436fbad279f318b88dcef621721bd830d0d2929019e861fa19ad46d","abstract_canon_sha256":"449a8dc9e03b2a40d35871a8c878bf0e6f1c2a64ce90e87435d48b9d3650a1ef"},"schema_version":"1.0"},"canonical_sha256":"871f0ed00e6dda69ec248d8f16dea2c241af513595a4c4f1522b2c67a07ebaff","source":{"kind":"arxiv","id":"1502.07090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07090","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07090v1","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07090","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"pith_short_12","alias_value":"Q4PQ5UAONXNG","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q4PQ5UAONXNGT3BE","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q4PQ5UAO","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:Q4PQ5UAONXNGT3BERWHRNXVCYJ","target":"record","payload":{"canonical_record":{"source":{"id":"1502.07090","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-25T09:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"ed4f8e929436fbad279f318b88dcef621721bd830d0d2929019e861fa19ad46d","abstract_canon_sha256":"449a8dc9e03b2a40d35871a8c878bf0e6f1c2a64ce90e87435d48b9d3650a1ef"},"schema_version":"1.0"},"canonical_sha256":"871f0ed00e6dda69ec248d8f16dea2c241af513595a4c4f1522b2c67a07ebaff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:33.111473Z","signature_b64":"Mdk54DmPWx46VGACu1Zfcy2srxAHHEFVqScoXtOazUVo23v2CKg2eMpX5k13SIca1JCuTNMaP96YCy3uhtCLDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"871f0ed00e6dda69ec248d8f16dea2c241af513595a4c4f1522b2c67a07ebaff","last_reissued_at":"2026-05-18T02:17:33.110807Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:33.110807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.07090","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":"2026-05-18T02:17:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NYK2oqXj8VNQBpENsn9SZoK551YJkF2vorejxkQHb2lGizi6HigvBvlJSAODrRjV2xSqHZwZ9jXbYRalQPHdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:35:37.800654Z"},"content_sha256":"7b0f5b0fd56442b0d97c5cc4fc029f47ba3cbc3c4f28ac9a561eb89af9414d47","schema_version":"1.0","event_id":"sha256:7b0f5b0fd56442b0d97c5cc4fc029f47ba3cbc3c4f28ac9a561eb89af9414d47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:Q4PQ5UAONXNGT3BERWHRNXVCYJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Viscoelastic Models of Tidally Heated Exomoons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Edwin L. Turner, Vera Dobos","submitted_at":"2015-02-25T09:21:26Z","abstract_excerpt":"Tidal heating of exomoons may play a key role in their habitability, since the elevated temperature can melt the ice on the body even without significant solar radiation. The possibility of life is intensely studied on Solar System moons such as Europa or Enceladus, where the surface ice layer covers tidally heated water ocean. Tidal forces may be even stronger in extrasolar systems, depending on the properties of the moon and its orbit. For studying the tidally heated surface temperature of exomoons, we used a viscoelastic model for the first time. This model is more realistic than the widely"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07090","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":"2026-05-18T02:17:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TjLBIGnRpnj5Tngo89ETRX4ZOwixlAU8jQCgw5Hhz3GwDWob6e9EI5D/0FsX9hwOOISzi0AMdDdVI3kb+wVtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:35:37.800992Z"},"content_sha256":"e9b3f24ee13c3e70738676efbaf736c61714f7861df7f628c7ea15bf83baa9d1","schema_version":"1.0","event_id":"sha256:e9b3f24ee13c3e70738676efbaf736c61714f7861df7f628c7ea15bf83baa9d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/bundle.json","state_url":"https://pith.science/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/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":"2026-06-03T00:35:37Z","links":{"resolver":"https://pith.science/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ","bundle":"https://pith.science/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/bundle.json","state":"https://pith.science/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q4PQ5UAONXNGT3BERWHRNXVCYJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:Q4PQ5UAONXNGT3BERWHRNXVCYJ","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":"449a8dc9e03b2a40d35871a8c878bf0e6f1c2a64ce90e87435d48b9d3650a1ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-25T09:21:26Z","title_canon_sha256":"ed4f8e929436fbad279f318b88dcef621721bd830d0d2929019e861fa19ad46d"},"schema_version":"1.0","source":{"id":"1502.07090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07090","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07090v1","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07090","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"pith_short_12","alias_value":"Q4PQ5UAONXNG","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q4PQ5UAONXNGT3BE","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q4PQ5UAO","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:e9b3f24ee13c3e70738676efbaf736c61714f7861df7f628c7ea15bf83baa9d1","target":"graph","created_at":"2026-05-18T02:17:33Z","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":"Tidal heating of exomoons may play a key role in their habitability, since the elevated temperature can melt the ice on the body even without significant solar radiation. The possibility of life is intensely studied on Solar System moons such as Europa or Enceladus, where the surface ice layer covers tidally heated water ocean. Tidal forces may be even stronger in extrasolar systems, depending on the properties of the moon and its orbit. For studying the tidally heated surface temperature of exomoons, we used a viscoelastic model for the first time. This model is more realistic than the widely","authors_text":"Edwin L. Turner, Vera Dobos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-25T09:21:26Z","title":"Viscoelastic Models of Tidally Heated Exomoons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07090","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":"sha256:7b0f5b0fd56442b0d97c5cc4fc029f47ba3cbc3c4f28ac9a561eb89af9414d47","target":"record","created_at":"2026-05-18T02:17:33Z","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":"449a8dc9e03b2a40d35871a8c878bf0e6f1c2a64ce90e87435d48b9d3650a1ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-02-25T09:21:26Z","title_canon_sha256":"ed4f8e929436fbad279f318b88dcef621721bd830d0d2929019e861fa19ad46d"},"schema_version":"1.0","source":{"id":"1502.07090","kind":"arxiv","version":1}},"canonical_sha256":"871f0ed00e6dda69ec248d8f16dea2c241af513595a4c4f1522b2c67a07ebaff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"871f0ed00e6dda69ec248d8f16dea2c241af513595a4c4f1522b2c67a07ebaff","first_computed_at":"2026-05-18T02:17:33.110807Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:33.110807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mdk54DmPWx46VGACu1Zfcy2srxAHHEFVqScoXtOazUVo23v2CKg2eMpX5k13SIca1JCuTNMaP96YCy3uhtCLDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:33.111473Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b0f5b0fd56442b0d97c5cc4fc029f47ba3cbc3c4f28ac9a561eb89af9414d47","sha256:e9b3f24ee13c3e70738676efbaf736c61714f7861df7f628c7ea15bf83baa9d1"],"state_sha256":"c75e53b604b4c8845cd793ce9b3722fa0d197e47dfa90045eae0e3d013aa4b75"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hZAgRbFCJ/BKLg1WiXJNwcy4+mS/mCUvg65LOZBkZawgMwhCNH9uUkqg48VF3fWR5OhwmRO/YBL5isyxGIARDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:35:37.802910Z","bundle_sha256":"6bffd3ba8a5e8bd759498d2c78f23a4736f9c5122d3e8247a24ab1c9094a0e3b"}}