Pith Number

pith:Y5APGFBC

pith:2021:Y5APGFBCOM2RPWP73WRVWJUY6Q

not attested not anchored not stored refs pending

Age Range Estimation using MTCNN and VGG-Face Model

Ashutosh Chauhan, Dipesh Gyawali, Prashanga Pokharel, Subodh Chandra Shakya

arxiv:2104.08585 v1 · 2021-04-17 · 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{Y5APGFBCOM2RPWP73WRVWJUY6Q}

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	2026-07-05T02:32:53.826827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c740f31422733517d9ffdda35b2698f415f2642fd135843b6f065625aaa02faa

Aliases

arxiv: 2104.08585 · arxiv_version: 2104.08585v1 · doi: 10.48550/arxiv.2104.08585 · pith_short_12: Y5APGFBCOM2R · pith_short_16: Y5APGFBCOM2RPWP7 · pith_short_8: Y5APGFBC

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/Y5APGFBCOM2RPWP73WRVWJUY6Q \
  | 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: c740f31422733517d9ffdda35b2698f415f2642fd135843b6f065625aaa02faa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08c8baec31c0e73dea147e8021cafb29f87b389c38d8c67e6db94636bc79c9cb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-17T15:54:14Z",
    "title_canon_sha256": "7e735edd0400680a202ffbf34361a9faa99e913b2983918b8f349f985b20eb5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08585",
    "kind": "arxiv",
    "version": 1
  }
}