Pith Number

pith:SIU7A7YQ

pith:2021:SIU7A7YQ654HIVWV5X6WBNTWZE

not attested not anchored not stored refs pending

Integrated Age Estimation Mechanism

Fang Yan, Fan Li, Jie Xiao, Pin Wang, Xinke Li, Yongming Li

arxiv:2103.06546 v1 · 2021-03-11 · cs.CV · cs.AI · 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{SIU7A7YQ654HIVWV5X6WBNTWZE}

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	2026-07-05T02:22:10.343381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9229f07f10f7787456d5edfd60b676c904c04bb56da806351a84bd0b5da99c3c

Aliases

arxiv: 2103.06546 · arxiv_version: 2103.06546v1 · doi: 10.48550/arxiv.2103.06546 · pith_short_12: SIU7A7YQ654H · pith_short_16: SIU7A7YQ654HIVWV · pith_short_8: SIU7A7YQ

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/SIU7A7YQ654HIVWV5X6WBNTWZE \
  | 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: 9229f07f10f7787456d5edfd60b676c904c04bb56da806351a84bd0b5da99c3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e20e903a31709a71b09df523344926088bdcc32683f13f829e613a539341be4d",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-11T09:14:10Z",
    "title_canon_sha256": "037ba12e95b057d79443194b38f315f097e0ffb34873765d98d7f7f151adbf64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.06546",
    "kind": "arxiv",
    "version": 1
  }
}