Pith Number

pith:TXLDVK3R

pith:2025:TXLDVK3RDUML7ZPSYWUTFAXGIF

not attested not anchored not stored refs pending

What's in the Box: Ergonomic and Expressive Capture Tracking over Generic Data Structures (Extended Version)

Cao Nguyen Pham, Martin Odersky, Oliver Bra\v{c}evac, Yichen Xu

arxiv:2509.07609 v1 · 2025-09-09 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TXLDVK3RDUML7ZPSYWUTFAXGIF}

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	2026-07-05T12:07:24.561341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dd63aab711d18bfe5f2c5a93282e6415667956fa955915f6e4607c0119a6db3

Aliases

arxiv: 2509.07609 · arxiv_version: 2509.07609v1 · doi: 10.48550/arxiv.2509.07609 · pith_short_12: TXLDVK3RDUML · pith_short_16: TXLDVK3RDUML7ZPS · pith_short_8: TXLDVK3R

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/TXLDVK3RDUML7ZPSYWUTFAXGIF \
  | 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: 9dd63aab711d18bfe5f2c5a93282e6415667956fa955915f6e4607c0119a6db3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d76d87f1f6b340af242f098df5cb0a6ae5c67c1a7f6f29c4b7d3683edb5796a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2025-09-09T11:34:40Z",
    "title_canon_sha256": "94539b916c15ec74c8ffbba6c3c9718df35a0ca6eb1409754b07ec809341abe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.07609",
    "kind": "arxiv",
    "version": 1
  }
}