Pith Number

pith:QXZPD6DA

pith:2013:QXZPD6DACK4HNCQKIK4YCZFHXU

not attested not anchored not stored refs pending

Fast non parametric entropy estimation for spatial-temporal saliency method

Anh Cat Le Ngo, Geoff Underwood, Guoping Qiu, Jasmine Kah-Phooi Seng, Kenneth Li-Minn Ang

arxiv:1301.7661 v1 · 2013-01-31 · 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{QXZPD6DACK4HNCQKIK4YCZFHXU}

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	2026-05-18T03:34:49.022644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85f2f1f86012b8768a0a42b98164a7bd294c08d01dce67281a9bcb707062d8ac

Aliases

arxiv: 1301.7661 · arxiv_version: 1301.7661v1 · doi: 10.48550/arxiv.1301.7661 · pith_short_12: QXZPD6DACK4H · pith_short_16: QXZPD6DACK4HNCQK · pith_short_8: QXZPD6DA

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/QXZPD6DACK4HNCQKIK4YCZFHXU \
  | 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: 85f2f1f86012b8768a0a42b98164a7bd294c08d01dce67281a9bcb707062d8ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7558442709c62416aebcaffd82a126a63f3b5d7673d683a5a3cdffa99c4eb03b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-01-31T16:05:26Z",
    "title_canon_sha256": "19c81a789c382a6c0c647b530402cc41c2eda4f7ff89cbd288e461f41e9c1b5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7661",
    "kind": "arxiv",
    "version": 1
  }
}