Pith Number

pith:UHFLG7OO

pith:2021:UHFLG7OOKPM5C2QORI3TJD6HCX

not attested not anchored not stored refs pending

Convolutional Neural Network-Based Age Estimation Using B-Mode Ultrasound Tongue Image

Kele Xu, Ming Feng, Tamas G\'abor Csap\'o

arxiv:2101.11245 v1 · 2021-01-27 · 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{UHFLG7OOKPM5C2QORI3TJD6HCX}

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	2026-07-05T02:10:10.449759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1cab37dce53d9d16a0e8a37348fc715fb869f4bb454176f74e796cf379734d4

Aliases

arxiv: 2101.11245 · arxiv_version: 2101.11245v1 · doi: 10.48550/arxiv.2101.11245 · pith_short_12: UHFLG7OOKPM5 · pith_short_16: UHFLG7OOKPM5C2QO · pith_short_8: UHFLG7OO

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/UHFLG7OOKPM5C2QORI3TJD6HCX \
  | 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: a1cab37dce53d9d16a0e8a37348fc715fb869f4bb454176f74e796cf379734d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8283bd69a1ea2403a3e98bae2bca33e8cbcb68671ae21ce7568566737964a35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-01-27T08:00:47Z",
    "title_canon_sha256": "b2eeb1c58da7323a01ffa21f087c88b816b3e7ae1979a39a0309508a1d264ca1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11245",
    "kind": "arxiv",
    "version": 1
  }
}