Pith Number

pith:CX2ST5HF

pith:2021:CX2ST5HF2U6AZ3OPCBUMXAW4AL

not attested not anchored not stored refs pending

Computational category-theoretic rewriting

Evan Patterson, James Fairbanks, Kristopher Brown, Tyler Hanks

arxiv:2111.03784 v3 · 2021-11-02 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CX2ST5HF2U6AZ3OPCBUMXAW4AL}

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	2026-07-05T05:56:37.521576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15f529f4e5d53c0cedcf1068cb82dc02f76078911db3167d54b4a94559faf2f9

Aliases

arxiv: 2111.03784 · arxiv_version: 2111.03784v3 · doi: 10.48550/arxiv.2111.03784 · pith_short_12: CX2ST5HF2U6A · pith_short_16: CX2ST5HF2U6AZ3OP · pith_short_8: CX2ST5HF

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/CX2ST5HF2U6AZ3OPCBUMXAW4AL \
  | 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: 15f529f4e5d53c0cedcf1068cb82dc02f76078911db3167d54b4a94559faf2f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec4ae7ce43a6549a798ebb5a16b019ea1db967c6628f37a91f014219983548b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-11-02T13:06:46Z",
    "title_canon_sha256": "ae5038bdccd96c2ccc6fecf3814e758e60740e93a04b823df3d77adeef00f9e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.03784",
    "kind": "arxiv",
    "version": 3
  }
}