Pith Number

pith:GC2PX3ED

pith:2020:GC2PX3EDERMQDTIJGH54SRFQ4R

not attested not anchored not stored refs pending

FragNet: Writer Identification using Deep Fragment Networks

Lambert Schomaker, Sheng He

arxiv:2003.07212 v2 · 2020-03-16 · 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{GC2PX3EDERMQDTIJGH54SRFQ4R}

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	2026-07-05T00:50:16.947911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30b4fbec83245901cd0931fbc944b0e446ed195e3a12e6ae86739c9ab37d5035

Aliases

arxiv: 2003.07212 · arxiv_version: 2003.07212v2 · doi: 10.48550/arxiv.2003.07212 · pith_short_12: GC2PX3EDERMQ · pith_short_16: GC2PX3EDERMQDTIJ · pith_short_8: GC2PX3ED

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/GC2PX3EDERMQDTIJGH54SRFQ4R \
  | 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: 30b4fbec83245901cd0931fbc944b0e446ed195e3a12e6ae86739c9ab37d5035

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5151571b6e6409a20d3e68b150b120885287328d99f7eeb7c1326e7a2fc7cd4f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-03-16T13:42:28Z",
    "title_canon_sha256": "ccf363c0a78821437bc12f663082734f59001e90088d3cf5b606d0a5113e31fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.07212",
    "kind": "arxiv",
    "version": 2
  }
}