Pith Number

pith:Y5LNR4OU

pith:2018:Y5LNR4OUR4H72COHJML7PBWJCN

not attested not anchored not stored refs pending

A Coupled Evolutionary Network for Age Estimation

Peipei Li, Ran He, Yibo Hu, Zhenan Sun

arxiv:1809.07447 v1 · 2018-09-20 · 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{Y5LNR4OUR4H72COHJML7PBWJCN}

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	2026-05-18T00:05:16.289244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c756d8f1d48f0ffd09c74b17f786c91353623c8416db024d4988b29c12e03a1b

Aliases

arxiv: 1809.07447 · arxiv_version: 1809.07447v1 · doi: 10.48550/arxiv.1809.07447 · pith_short_12: Y5LNR4OUR4H7 · pith_short_16: Y5LNR4OUR4H72COH · pith_short_8: Y5LNR4OU

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/Y5LNR4OUR4H72COHJML7PBWJCN \
  | 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: c756d8f1d48f0ffd09c74b17f786c91353623c8416db024d4988b29c12e03a1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86de29084e6802aed24f6ec1860d19b97f445c58f72b5744469d9a4c60130925",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-20T01:55:56Z",
    "title_canon_sha256": "a46218bb6c1224f62bc0f2f00e6c531fb62f9263d7158f290fc98bf23358fdaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07447",
    "kind": "arxiv",
    "version": 1
  }
}