{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:FK4LU5QTMJFGZJT2CTM3ITOPYT","short_pith_number":"pith:FK4LU5QT","canonical_record":{"source":{"id":"2007.06346","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-07-13T12:33:25Z","cross_cats_sorted":["cs.CV","stat.ML"],"title_canon_sha256":"3dd4b97606b0e80c630c010baf9245ed2c51359ef836ddbfaf0206c45b5faac9","abstract_canon_sha256":"ff2d83f3ad81e4f0329c89f4ce9da7bcd7303cad6351055c591d23367475552b"},"schema_version":"1.0"},"canonical_sha256":"2ab8ba7613624a6ca67a14d9b44dcfc4f1c5eb76fc9eff8b90c12b6ffb346280","source":{"kind":"arxiv","id":"2007.06346","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.06346","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"arxiv_version","alias_value":"2007.06346v5","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.06346","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_12","alias_value":"FK4LU5QTMJFG","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_16","alias_value":"FK4LU5QTMJFGZJT2","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_8","alias_value":"FK4LU5QT","created_at":"2026-07-05T02:40:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:FK4LU5QTMJFGZJT2CTM3ITOPYT","target":"record","payload":{"canonical_record":{"source":{"id":"2007.06346","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-07-13T12:33:25Z","cross_cats_sorted":["cs.CV","stat.ML"],"title_canon_sha256":"3dd4b97606b0e80c630c010baf9245ed2c51359ef836ddbfaf0206c45b5faac9","abstract_canon_sha256":"ff2d83f3ad81e4f0329c89f4ce9da7bcd7303cad6351055c591d23367475552b"},"schema_version":"1.0"},"canonical_sha256":"2ab8ba7613624a6ca67a14d9b44dcfc4f1c5eb76fc9eff8b90c12b6ffb346280","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:40:19.292120Z","signature_b64":"jD+kWF4jZz2JnnRyUd1wFsciun3t6HYTPgKX87sfeod3+I7iSzZyMEfGvTgvuf6AgdUUBI/yCaS8jPXpjS4CBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ab8ba7613624a6ca67a14d9b44dcfc4f1c5eb76fc9eff8b90c12b6ffb346280","last_reissued_at":"2026-07-05T02:40:19.291625Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:40:19.291625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.06346","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":"2026-07-05T02:40:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vOLZLw5thUhoVvmbKBCpp3j0yFksM4LPaUgdS8nt4i4OWnsqxtZcpc6hcrEw7r18eHtjvWhrzD/nI0PXtviEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T10:34:36.109764Z"},"content_sha256":"3c57148673b7b44912c27d22bb664768be91a4ede2dab8b2220feebc0bc08a93","schema_version":"1.0","event_id":"sha256:3c57148673b7b44912c27d22bb664768be91a4ede2dab8b2220feebc0bc08a93"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:FK4LU5QTMJFGZJT2CTM3ITOPYT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Whitening for Self-Supervised Representation Learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","stat.ML"],"primary_cat":"cs.LG","authors_text":"Aleksandr Ermolov, Aliaksandr Siarohin, Enver Sangineto, Nicu Sebe","submitted_at":"2020-07-13T12:33:25Z","abstract_excerpt":"Most of the current self-supervised representation learning (SSL) methods are based on the contrastive loss and the instance-discrimination task, where augmented versions of the same image instance (\"positives\") are contrasted with instances extracted from other images (\"negatives\"). For the learning to be effective, many negatives should be compared with a positive pair, which is computationally demanding. In this paper, we propose a different direction and a new loss function for SSL, which is based on the whitening of the latent-space features. The whitening operation has a \"scattering\" eff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.06346","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.06346/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:40:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FI2a8uVBxSCf+PvLXIKEueE0Yv/Kclxxxizum4Wga/ad0lIC+U/Xk9qxHgIVcGE/z8VwsaKCOv3PkHdZyBrvDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T10:34:36.110344Z"},"content_sha256":"d09c98b8fb5dcd93c7dfa523d3e6e9966c2264bfb3ffafbe630ee6f565ecbad9","schema_version":"1.0","event_id":"sha256:d09c98b8fb5dcd93c7dfa523d3e6e9966c2264bfb3ffafbe630ee6f565ecbad9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/bundle.json","state_url":"https://pith.science/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/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":"2026-08-07T10:34:36Z","links":{"resolver":"https://pith.science/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT","bundle":"https://pith.science/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/bundle.json","state":"https://pith.science/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FK4LU5QTMJFGZJT2CTM3ITOPYT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:FK4LU5QTMJFGZJT2CTM3ITOPYT","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":"ff2d83f3ad81e4f0329c89f4ce9da7bcd7303cad6351055c591d23367475552b","cross_cats_sorted":["cs.CV","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-07-13T12:33:25Z","title_canon_sha256":"3dd4b97606b0e80c630c010baf9245ed2c51359ef836ddbfaf0206c45b5faac9"},"schema_version":"1.0","source":{"id":"2007.06346","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.06346","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"arxiv_version","alias_value":"2007.06346v5","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.06346","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_12","alias_value":"FK4LU5QTMJFG","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_16","alias_value":"FK4LU5QTMJFGZJT2","created_at":"2026-07-05T02:40:19Z"},{"alias_kind":"pith_short_8","alias_value":"FK4LU5QT","created_at":"2026-07-05T02:40:19Z"}],"graph_snapshots":[{"event_id":"sha256:d09c98b8fb5dcd93c7dfa523d3e6e9966c2264bfb3ffafbe630ee6f565ecbad9","target":"graph","created_at":"2026-07-05T02:40:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2007.06346/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most of the current self-supervised representation learning (SSL) methods are based on the contrastive loss and the instance-discrimination task, where augmented versions of the same image instance (\"positives\") are contrasted with instances extracted from other images (\"negatives\"). For the learning to be effective, many negatives should be compared with a positive pair, which is computationally demanding. In this paper, we propose a different direction and a new loss function for SSL, which is based on the whitening of the latent-space features. The whitening operation has a \"scattering\" eff","authors_text":"Aleksandr Ermolov, Aliaksandr Siarohin, Enver Sangineto, Nicu Sebe","cross_cats":["cs.CV","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-07-13T12:33:25Z","title":"Whitening for Self-Supervised Representation Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.06346","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":"sha256:3c57148673b7b44912c27d22bb664768be91a4ede2dab8b2220feebc0bc08a93","target":"record","created_at":"2026-07-05T02:40:19Z","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":"ff2d83f3ad81e4f0329c89f4ce9da7bcd7303cad6351055c591d23367475552b","cross_cats_sorted":["cs.CV","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2020-07-13T12:33:25Z","title_canon_sha256":"3dd4b97606b0e80c630c010baf9245ed2c51359ef836ddbfaf0206c45b5faac9"},"schema_version":"1.0","source":{"id":"2007.06346","kind":"arxiv","version":5}},"canonical_sha256":"2ab8ba7613624a6ca67a14d9b44dcfc4f1c5eb76fc9eff8b90c12b6ffb346280","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ab8ba7613624a6ca67a14d9b44dcfc4f1c5eb76fc9eff8b90c12b6ffb346280","first_computed_at":"2026-07-05T02:40:19.291625Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:40:19.291625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jD+kWF4jZz2JnnRyUd1wFsciun3t6HYTPgKX87sfeod3+I7iSzZyMEfGvTgvuf6AgdUUBI/yCaS8jPXpjS4CBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:40:19.292120Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.06346","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c57148673b7b44912c27d22bb664768be91a4ede2dab8b2220feebc0bc08a93","sha256:d09c98b8fb5dcd93c7dfa523d3e6e9966c2264bfb3ffafbe630ee6f565ecbad9"],"state_sha256":"00e08852fc2dae0584f16f52cae57e4ec7dd5c5ce54c42e5077bea8d357c4871"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kGFJTUquhTvz7Mzxjz7XCE5bFH+tqjnTRY/WS0GVmqmgOuCGB2wlCwahof4aJDbzQ83q46iiWM2XlVKYGcE9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T10:34:36.114384Z","bundle_sha256":"afe2d26859075a999711c9d74aa55673344d2539995ba9611634f7d811714938"}}