Pith Number

pith:3EBALQ3I

pith:2021:3EBALQ3IVYSQBOTAPRZYMORBWQ

not attested not anchored not stored refs pending

Dense Semantic Contrast for Self-Supervised Visual Representation Learning

Aoting Zhang, Haiying Wu, Ning Jiang, Weiping Wang, Wei Wang, Xiaoni Li, Yifei Zhang, Yu Zhou

arxiv:2109.07756 v1 · 2021-09-16 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3EBALQ3IVYSQBOTAPRZYMORBWQ}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:15:00.819073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d90205c368ae2500ba607c73863a21b437d32d3ebf8489e8b029ce4c26857729

Aliases

arxiv: 2109.07756 · arxiv_version: 2109.07756v1 · doi: 10.48550/arxiv.2109.07756 · pith_short_12: 3EBALQ3IVYSQ · pith_short_16: 3EBALQ3IVYSQBOTA · pith_short_8: 3EBALQ3I

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3EBALQ3IVYSQBOTAPRZYMORBWQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d90205c368ae2500ba607c73863a21b437d32d3ebf8489e8b029ce4c26857729

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8bed88382833ce04bb900e52d57a1975e4bafcb4e87097a5279c1dc21606426",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-16T07:04:05Z",
    "title_canon_sha256": "d2e9c760d3fd92fa8508c05bf811f967627e63f643fef187d4868653ffba1252"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.07756",
    "kind": "arxiv",
    "version": 1
  }
}