Pith Number

pith:P4MKCGQD

pith:2019:P4MKCGQD6RJ22QOO33YO3VTJMT

not attested not anchored not stored refs pending

Class Feature Pyramids for Video Explanation

Alexandros Stergiou, Christos Chrysoulas, Georgios Kapidis, Grigorios Kalliatakis, Remco Veltkamp, Ronald Poppe

arxiv:1909.08611 v1 · 2019-09-18 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4MKCGQD6RJ22QOO33YO3VTJMT}

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	2026-07-05T01:12:23.970078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f18a11a03f453ad41cedef0edd66964d42f3c9bed82b0cc50b19d74ae134123

Aliases

arxiv: 1909.08611 · arxiv_version: 1909.08611v1 · doi: 10.48550/arxiv.1909.08611 · pith_short_12: P4MKCGQD6RJ2 · pith_short_16: P4MKCGQD6RJ22QOO · pith_short_8: P4MKCGQD

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/P4MKCGQD6RJ22QOO33YO3VTJMT \
  | 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: 7f18a11a03f453ad41cedef0edd66964d42f3c9bed82b0cc50b19d74ae134123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d34be19a87c772abcc9e533d0b4ab0b406efa5b7b71e71af0f7ec2299fafdc8",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-09-18T07:10:32Z",
    "title_canon_sha256": "e7e6a28554d85eb7cbbb3029b902331c405a65aa82965682ced58e643b5c7750"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.08611",
    "kind": "arxiv",
    "version": 1
  }
}