Pith Number

pith:3F3GPFPZ

pith:2011:3F3GPFPZ6BSREK3SV43SBEWI22

not attested not anchored not stored refs pending

Multi-task GLOH feature selection for human age estimation

Beiji Zou, Lingbo Liu, Yao Xiang, Ying Xu, Yixiong Liang

arxiv:1102.2749 v2 · 2011-02-14 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3F3GPFPZ6BSREK3SV43SBEWI22}

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	2026-05-18T04:22:41.190444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9766795f9f065122b72af372092c8d699bde83e0210c2a3f2704b69746a8a7e

Aliases

arxiv: 1102.2749 · arxiv_version: 1102.2749v2 · doi: 10.48550/arxiv.1102.2749 · pith_short_12: 3F3GPFPZ6BSR · pith_short_16: 3F3GPFPZ6BSREK3S · pith_short_8: 3F3GPFPZ

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/3F3GPFPZ6BSREK3SV43SBEWI22 \
  | 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: d9766795f9f065122b72af372092c8d699bde83e0210c2a3f2704b69746a8a7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4373c70461cd85f7e9b9a2265433e757497171673b04e4eb0f71b871ef96f170",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-02-14T12:12:56Z",
    "title_canon_sha256": "c91698633352b42faefaee055026dfce30f19df0c9adda592d70fa428e5d45df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2749",
    "kind": "arxiv",
    "version": 2
  }
}