Pith Number

pith:OBKIOLZH

pith:2017:OBKIOLZHZ5MYMVSK5LYJYAQR4Y

not attested not anchored not stored refs pending

New Methods for Metadata Extraction from Scientific Literature

Dominika Tkaczyk

arxiv:1710.10201 v1 · 2017-10-27 · cs.DL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBKIOLZHZ5MYMVSK5LYJYAQR4Y}

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	2026-05-18T00:31:54.532344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7054872f27cf5986564aeaf09c0211e62deb59d3272da5554ce101a7b92399c0

Aliases

arxiv: 1710.10201 · arxiv_version: 1710.10201v1 · doi: 10.48550/arxiv.1710.10201 · pith_short_12: OBKIOLZHZ5MY · pith_short_16: OBKIOLZHZ5MYMVSK · pith_short_8: OBKIOLZH

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/OBKIOLZHZ5MYMVSK5LYJYAQR4Y \
  | 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: 7054872f27cf5986564aeaf09c0211e62deb59d3272da5554ce101a7b92399c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd93470e3041944abf0ce96865debaa45161bbe4eda75f529f37c693bcb6390f",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-10-27T15:33:29Z",
    "title_canon_sha256": "746a41eb9922b6c4f38348115c72ead57fc6b7db6c345a039233265c2726a02c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10201",
    "kind": "arxiv",
    "version": 1
  }
}