Pith Number

pith:L535XD3S

pith:2017:L535XD3SW3PTKITL5E467HRQVR

not attested not anchored not stored refs pending

On-the-fly Historical Handwritten Text Annotation

Anders Hast, Ekta Vats

arxiv:1709.01775 v1 · 2017-09-06 · cs.IR · cs.DL · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L535XD3SW3PTKITL5E467HRQVR}

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	2026-05-18T00:22:52.650976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f77db8f72b6df35226be939ef9e30ac61b3d86b1620d038a5aba6bb03b0d7fa

Aliases

arxiv: 1709.01775 · arxiv_version: 1709.01775v1 · doi: 10.48550/arxiv.1709.01775 · pith_short_12: L535XD3SW3PT · pith_short_16: L535XD3SW3PTKITL · pith_short_8: L535XD3S

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/L535XD3SW3PTKITL5E467HRQVR \
  | 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: 5f77db8f72b6df35226be939ef9e30ac61b3d86b1620d038a5aba6bb03b0d7fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc0cdb39b1f1365081b1c3697a7602100da9031ca89b0b8aef2e5b59b9ee41fd",
    "cross_cats_sorted": [
      "cs.DL",
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-09-06T11:27:41Z",
    "title_canon_sha256": "eaba6092ffb4558b7b21fe735badf6147104e63ead243953bfc4ca4be6334668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01775",
    "kind": "arxiv",
    "version": 1
  }
}