Pith Number

pith:HLHE7GO4

pith:2017:HLHE7GO4UPZRWS5MGM66ESJCCM

not attested not anchored not stored refs pending

The Main Cognitive Model of Visual Recognition: Contour Recognition

Yonghong Chen

arxiv:1702.08509 v2 · 2017-02-24 · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLHE7GO4UPZRWS5MGM66ESJCCM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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	2026-05-18T00:49:31.276214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ace4f99dca3f31b4bac333de24922133fc16b0b04f1376075a816fcafce769b

Aliases

arxiv: 1702.08509 · arxiv_version: 1702.08509v2 · doi: 10.48550/arxiv.1702.08509 · pith_short_12: HLHE7GO4UPZR · pith_short_16: HLHE7GO4UPZRWS5M · pith_short_8: HLHE7GO4

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/HLHE7GO4UPZRWS5MGM66ESJCCM \
  | 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: 3ace4f99dca3f31b4bac333de24922133fc16b0b04f1376075a816fcafce769b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ef7ce3d6971e39701807ff9bdf4b42a48543509217beab8013c4c896a5bc1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2017-02-24T02:28:25Z",
    "title_canon_sha256": "8635b4134ab36234ed7958ea231eca9bcecb59f13723ce00dbdd01896aa521a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08509",
    "kind": "arxiv",
    "version": 2
  }
}