Pith Number

pith:FCMZFOJU

pith:2013:FCMZFOJUFQ7YMBDBPGD7M2L75M

not attested not anchored not stored refs pending

Image Classification by Feature Dimension Reduction and Graph based Ranking

Qian Feng, Sun Zuolei, Yao Nan

arxiv:1304.2683 v1 · 2013-04-09 · 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{FCMZFOJUFQ7YMBDBPGD7M2L75M}

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	2026-05-18T03:28:31.078292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

289992b9342c3f8604617987f6697feb042688d0da856c8be99049911e2d08f0

Aliases

arxiv: 1304.2683 · arxiv_version: 1304.2683v1 · doi: 10.48550/arxiv.1304.2683 · pith_short_12: FCMZFOJUFQ7Y · pith_short_16: FCMZFOJUFQ7YMBDB · pith_short_8: FCMZFOJU

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/FCMZFOJUFQ7YMBDBPGD7M2L75M \
  | 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: 289992b9342c3f8604617987f6697feb042688d0da856c8be99049911e2d08f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a9b31b0fdc1543424f79cc474edd04f72baa41e60b1bf67e37e658630b38d9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-04-09T18:11:08Z",
    "title_canon_sha256": "004ce1d7f6859756a3ba0b7788dc133a6e364eb1e0a2cd476b354edfe2208d71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2683",
    "kind": "arxiv",
    "version": 1
  }
}