Pith Number

pith:Q4XXGT6R

pith:2025:Q4XXGT6R6KAQAIN2NF372P6G7A

not attested not anchored not stored refs pending

ChartMark: A Structured Grammar for Chart Annotation

Hui Xiong, Leixian Shen, Shuyu Shen, Yifan Wu, Yiyu Chen, Yupeng Xie, Yuyu Luo

arxiv:2507.21810 v1 · 2025-07-29 · cs.CL · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4XXGT6R6KAQAIN2NF372P6G7A}

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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

Demonstrating chart-plot: Closing the Last Mile of Academic Chart Generation

Receipt and verification

First computed	2026-07-05T11:45:07.881937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

872f734fd1f2810021ba6977fd3fc6f80eb9b205d84fdb94e37e377d939039e1

Aliases

arxiv: 2507.21810 · arxiv_version: 2507.21810v1 · doi: 10.48550/arxiv.2507.21810 · pith_short_12: Q4XXGT6R6KAQ · pith_short_16: Q4XXGT6R6KAQAIN2 · pith_short_8: Q4XXGT6R

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/Q4XXGT6R6KAQAIN2NF372P6G7A \
  | 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: 872f734fd1f2810021ba6977fd3fc6f80eb9b205d84fdb94e37e377d939039e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6e91bb5f6d3bdae51bf40c04ea7368743ae3e8f87b777581b60f4aa66c123a9",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-29T13:44:40Z",
    "title_canon_sha256": "47c201abf689a17cb650c43a6045aa6259e0cd2890315551228a1ad698ff8081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21810",
    "kind": "arxiv",
    "version": 1
  }
}