{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7YHSBCJWGOMCC5FCVBRZIGU57J","short_pith_number":"pith:7YHSBCJW","canonical_record":{"source":{"id":"1704.02250","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:45:15Z","cross_cats_sorted":[],"title_canon_sha256":"a263f513bc670291fb9a221e5ff3b80203933cef2169d9189b8d24e34ab7004f","abstract_canon_sha256":"4a63fa0fa35189f32bb6b5d83f6d84cc847bffa3c3120c8c26976614631d41f0"},"schema_version":"1.0"},"canonical_sha256":"fe0f20893633982174a2a863941a9dfa405c62b727f8f29ef604b99408fd7353","source":{"kind":"arxiv","id":"1704.02250","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02250","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02250v1","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02250","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"pith_short_12","alias_value":"7YHSBCJWGOMC","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7YHSBCJWGOMCC5FC","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7YHSBCJW","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7YHSBCJWGOMCC5FCVBRZIGU57J","target":"record","payload":{"canonical_record":{"source":{"id":"1704.02250","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:45:15Z","cross_cats_sorted":[],"title_canon_sha256":"a263f513bc670291fb9a221e5ff3b80203933cef2169d9189b8d24e34ab7004f","abstract_canon_sha256":"4a63fa0fa35189f32bb6b5d83f6d84cc847bffa3c3120c8c26976614631d41f0"},"schema_version":"1.0"},"canonical_sha256":"fe0f20893633982174a2a863941a9dfa405c62b727f8f29ef604b99408fd7353","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:50.275332Z","signature_b64":"o+1NdLobBLn5ize6RXlMTianUOYbZqJ4rPr5z9yyxYKchsJBHZRKhw/bWELlOL2L+wVyvle/2FSf4dyNmT90CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe0f20893633982174a2a863941a9dfa405c62b727f8f29ef604b99408fd7353","last_reissued_at":"2026-05-18T00:46:50.274798Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:50.274798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.02250","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":"2026-05-18T00:46:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t2QGnN9bmgw+K9DzNtrYCE91/q0zln21deDFSofEYokvLXMt9gvXScC/cbifqx2yWwEgsmEKJXSs1VmKaievAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:00:37.500877Z"},"content_sha256":"d264169218cf0092fc1d251444ac91f07ec612b4421d434704621529032a3ad3","schema_version":"1.0","event_id":"sha256:d264169218cf0092fc1d251444ac91f07ec612b4421d434704621529032a3ad3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7YHSBCJWGOMCC5FCVBRZIGU57J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surfactant-Free Polar-to-Non-Polar-Phase Transfer of Exfoliated MoS2 Two-Dimensional Colloids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andres Castellanos-Gomez, Emerson Giovanelli, Emilio M. P\\'erez","submitted_at":"2017-04-07T14:45:15Z","abstract_excerpt":"Exfoliation of lamellar materials into their corresponding layers represented a breakthrough, due to the outstanding properties arising from the nanometric thickness confinement. Among the cleavage techniques, liquid-phase exfoliation is now on the rise because it is scalable and leads to easy-to-manipulate colloids. However, all appropriate exfoliating solvents exhibit strong polarity, which restrains a lot the scope of feasible functionalization or processing of the resulting flakes. Here we propose to extend this scope, demonstrating that nanosheets exfoliated in a polar medium can be prope"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02250","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":"2026-05-18T00:46:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fQ8AtiPLpGvdhgxhGqiUW8nzT6qOFbeBbeXD9JUR36PCrBgqwYnAECDzktKeIHEaxiyadaBikb4RAi+W5QO2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:00:37.501460Z"},"content_sha256":"2c0f5b92d6747c7c5ed30b9100be9ba9e493d095109f5828398f9f51cd67bc5d","schema_version":"1.0","event_id":"sha256:2c0f5b92d6747c7c5ed30b9100be9ba9e493d095109f5828398f9f51cd67bc5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/bundle.json","state_url":"https://pith.science/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/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":"2026-06-02T07:00:37Z","links":{"resolver":"https://pith.science/pith/7YHSBCJWGOMCC5FCVBRZIGU57J","bundle":"https://pith.science/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/bundle.json","state":"https://pith.science/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YHSBCJWGOMCC5FCVBRZIGU57J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7YHSBCJWGOMCC5FCVBRZIGU57J","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":"4a63fa0fa35189f32bb6b5d83f6d84cc847bffa3c3120c8c26976614631d41f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:45:15Z","title_canon_sha256":"a263f513bc670291fb9a221e5ff3b80203933cef2169d9189b8d24e34ab7004f"},"schema_version":"1.0","source":{"id":"1704.02250","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.02250","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"arxiv_version","alias_value":"1704.02250v1","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.02250","created_at":"2026-05-18T00:46:50Z"},{"alias_kind":"pith_short_12","alias_value":"7YHSBCJWGOMC","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7YHSBCJWGOMCC5FC","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7YHSBCJW","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:2c0f5b92d6747c7c5ed30b9100be9ba9e493d095109f5828398f9f51cd67bc5d","target":"graph","created_at":"2026-05-18T00:46:50Z","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":"Exfoliation of lamellar materials into their corresponding layers represented a breakthrough, due to the outstanding properties arising from the nanometric thickness confinement. Among the cleavage techniques, liquid-phase exfoliation is now on the rise because it is scalable and leads to easy-to-manipulate colloids. However, all appropriate exfoliating solvents exhibit strong polarity, which restrains a lot the scope of feasible functionalization or processing of the resulting flakes. Here we propose to extend this scope, demonstrating that nanosheets exfoliated in a polar medium can be prope","authors_text":"Andres Castellanos-Gomez, Emerson Giovanelli, Emilio M. P\\'erez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:45:15Z","title":"Surfactant-Free Polar-to-Non-Polar-Phase Transfer of Exfoliated MoS2 Two-Dimensional Colloids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.02250","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:d264169218cf0092fc1d251444ac91f07ec612b4421d434704621529032a3ad3","target":"record","created_at":"2026-05-18T00:46:50Z","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":"4a63fa0fa35189f32bb6b5d83f6d84cc847bffa3c3120c8c26976614631d41f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-07T14:45:15Z","title_canon_sha256":"a263f513bc670291fb9a221e5ff3b80203933cef2169d9189b8d24e34ab7004f"},"schema_version":"1.0","source":{"id":"1704.02250","kind":"arxiv","version":1}},"canonical_sha256":"fe0f20893633982174a2a863941a9dfa405c62b727f8f29ef604b99408fd7353","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe0f20893633982174a2a863941a9dfa405c62b727f8f29ef604b99408fd7353","first_computed_at":"2026-05-18T00:46:50.274798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:50.274798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o+1NdLobBLn5ize6RXlMTianUOYbZqJ4rPr5z9yyxYKchsJBHZRKhw/bWELlOL2L+wVyvle/2FSf4dyNmT90CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:50.275332Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.02250","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d264169218cf0092fc1d251444ac91f07ec612b4421d434704621529032a3ad3","sha256:2c0f5b92d6747c7c5ed30b9100be9ba9e493d095109f5828398f9f51cd67bc5d"],"state_sha256":"6f5ce10a1aba8be5ef4b1172ebb1916ef2f2abc4ce72dbe1135de76fd825af47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQ+plOP3sG9brt6LUmFrKHVXgCIKW+8oRyQnXrqS9rasXgnDuJHRESJbCMCdBh+z67F2+r/PV1rp7RjaELB8Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T07:00:37.504166Z","bundle_sha256":"a356a2912f56f60a1a29dcadb0cc531bb1134f8a777727b282fc7fd701234f99"}}