Pith Number

pith:ZGRWFVVC

pith:2026:ZGRWFVVCFZP62LC2JUFBZPDHBX

not attested not anchored not stored refs pending

A Calculus of Inheritance

Bo Yang

arxiv:2602.16291 v9 · 2026-02-18 · cs.PL · 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{ZGRWFVVCFZP62LC2JUFBZPDHBX}

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	2026-05-27T01:04:56.243457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9a362d6a22e5fed2c5a4d0a1cbc670de3f5d20faf7da2a0817e784db7f4bc64

Aliases

arxiv: 2602.16291 · arxiv_version: 2602.16291v9 · doi: 10.48550/arxiv.2602.16291 · pith_short_12: ZGRWFVVCFZP6 · pith_short_16: ZGRWFVVCFZP62LC2 · pith_short_8: ZGRWFVVC

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/ZGRWFVVCFZP62LC2JUFBZPDHBX \
  | 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: c9a362d6a22e5fed2c5a4d0a1cbc670de3f5d20faf7da2a0817e784db7f4bc64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4663f978d32132b7539b45d23f92574893c90277bc58166949a605d576d3d8c",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2026-02-18T09:17:20Z",
    "title_canon_sha256": "bc2b12d5d5f664860b9660f1c9fe65435835fcdaa7b8de117dac08ed7708dd0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.16291",
    "kind": "arxiv",
    "version": 9
  }
}