Pith Number

pith:HLZ4O6W6

pith:2013:HLZ4O6W66AYFZMOCAVSYJ4GRQS

not attested not anchored not stored refs pending

Sparse Norm Filtering

Chengxi Ye, Dacheng Tao, David W. Jacobs, Mingli Song, Min Wu

arxiv:1305.3971 v1 · 2013-05-17 · cs.GR · cs.CV · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLZ4O6W66AYFZMOCAVSYJ4GRQS}

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	2026-05-18T03:25:26.705442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3af3c77adef0305cb1c2056584f0d18491d29734a0f049f5320b63f6d65b3ab4

Aliases

arxiv: 1305.3971 · arxiv_version: 1305.3971v1 · doi: 10.48550/arxiv.1305.3971 · pith_short_12: HLZ4O6W66AYF · pith_short_16: HLZ4O6W66AYFZMOC · pith_short_8: HLZ4O6W6

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/HLZ4O6W66AYFZMOCAVSYJ4GRQS \
  | 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: 3af3c77adef0305cb1c2056584f0d18491d29734a0f049f5320b63f6d65b3ab4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd963992e1a53795000669b5cdd53550dceb697be03d2f32f79594e79e2595aa",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2013-05-17T03:13:28Z",
    "title_canon_sha256": "b86d98cdc600a141b3c233c10dddc23e9499656ea3bd78b9fe7998a6d6aa9fda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3971",
    "kind": "arxiv",
    "version": 1
  }
}