Pith Number

pith:DX7IBXZM

pith:2025:DX7IBXZMW6SKSPP42IJ3TWPHTC

not attested not anchored not stored refs pending

Facial Age Estimation: A Research Roadmap for Technological and Legal Development and Deployment

Chris Allgrove, Elena Botoeva, Elora Fernandes, Eva Lievens, Martin Sas, Richard Guest, Temitope Adeyemo, Valerie Verdoodt

arxiv:2505.22401 v1 · 2025-05-28 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DX7IBXZMW6SKSPP42IJ3TWPHTC}

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	2026-07-05T11:11:23.205108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dfe80df2cb7a4a93dfcd213b9d9e79884d60e26b974571a2c749a2a554b284f

Aliases

arxiv: 2505.22401 · arxiv_version: 2505.22401v1 · doi: 10.48550/arxiv.2505.22401 · pith_short_12: DX7IBXZMW6SK · pith_short_16: DX7IBXZMW6SKSPP4 · pith_short_8: DX7IBXZM

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/DX7IBXZMW6SKSPP42IJ3TWPHTC \
  | 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: 1dfe80df2cb7a4a93dfcd213b9d9e79884d60e26b974571a2c749a2a554b284f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61590c3dd068d06de4208bd94350ff6d17389cf1e417ea16bae06634202fb5e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-05-28T14:28:31Z",
    "title_canon_sha256": "4d1888e9c2c186dcb6674b939d4cb2fa7de58fcf31a0ae998f158f233fab7a7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22401",
    "kind": "arxiv",
    "version": 1
  }
}