Pith Number

pith:E42JGTAR

pith:2017:E42JGTARMHHFPBNILK6WWLNERZ

not attested not anchored not stored refs pending

Linking forms revisited

Anthony Conway, Gerrit Herrmann, Stefan Friedl

arxiv:1708.03754 v3 · 2017-08-12 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E42JGTARMHHFPBNILK6WWLNERZ}

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	2026-05-18T00:22:33.264570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2734934c1161ce5785a85abd6b2da48e4a2b582d984dc5b293f404c8774ebe23

Aliases

arxiv: 1708.03754 · arxiv_version: 1708.03754v3 · doi: 10.48550/arxiv.1708.03754 · pith_short_12: E42JGTARMHHF · pith_short_16: E42JGTARMHHFPBNI · pith_short_8: E42JGTAR

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/E42JGTARMHHFPBNILK6WWLNERZ \
  | 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: 2734934c1161ce5785a85abd6b2da48e4a2b582d984dc5b293f404c8774ebe23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e28b47a08fbaf2b9753f423be5d2dd7434fd89128f517c5dce321ca3113c220b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-08-12T08:54:29Z",
    "title_canon_sha256": "97c2a2714c2ef9bd0816f108a7b728a299a55534e2bb1dbc3da04f593030d30c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03754",
    "kind": "arxiv",
    "version": 3
  }
}