Pith Number

pith:2XCED2UZ

pith:2022:2XCED2UZC64FVOBK344MMEXEA7

not attested not anchored not stored refs pending

Automatic Image Content Extraction: Operationalizing Machine Learning in Humanistic Photographic Studies of Large Visual Archives

Alexandros Iosifidis, Anssi M\"annist\"o, Jenni Raitoharju, Mert Seker

arxiv:2204.02149 v1 · 2022-04-05 · 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{2XCED2UZC64FVOBK344MMEXEA7}

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.

Cited by

1 paper in Pith

Semi-Supervised Image-Based Narrative Extraction: A Case Study with Historical Photographic Records

Receipt and verification

First computed	2026-07-05T04:11:37.109771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5c441ea9917b85ab82adf38c612e407df64317adb560744db7ebd9eecd2d2f9

Aliases

arxiv: 2204.02149 · arxiv_version: 2204.02149v1 · doi: 10.48550/arxiv.2204.02149 · pith_short_12: 2XCED2UZC64F · pith_short_16: 2XCED2UZC64FVOBK · pith_short_8: 2XCED2UZ

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/2XCED2UZC64FVOBK344MMEXEA7 \
  | 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: d5c441ea9917b85ab82adf38c612e407df64317adb560744db7ebd9eecd2d2f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c4f3cf6f92ed148b3e90301bc0d43a1e6f48037817a8bfbb604f64375f15782",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-04-05T12:19:24Z",
    "title_canon_sha256": "710a3640ee3eb632282dde999de2c3360c26bba18ef81a5b44ad22f40c1fff73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.02149",
    "kind": "arxiv",
    "version": 1
  }
}