Pith Number

pith:URWRHZ4V

pith:2018:URWRHZ4VTIDBHRCJKMSM3XDUDZ

not attested not anchored not stored refs pending

Manifold properties of planar polygon spaces

Donald M. Davis

arxiv:1804.01801 v2 · 2018-04-05 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URWRHZ4VTIDBHRCJKMSM3XDUDZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

An Algebra of Observables for de Sitter Space

Receipt and verification

First computed	2026-05-18T00:16:36.259542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a46d13e7959a0613c4495324cddc741e5c6fa3ee966778b5bd1547e34710ba57

Aliases

arxiv: 1804.01801 · arxiv_version: 1804.01801v2 · doi: 10.48550/arxiv.1804.01801 · pith_short_12: URWRHZ4VTIDB · pith_short_16: URWRHZ4VTIDBHRCJ · pith_short_8: URWRHZ4V

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/URWRHZ4VTIDBHRCJKMSM3XDUDZ \
  | 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: a46d13e7959a0613c4495324cddc741e5c6fa3ee966778b5bd1547e34710ba57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b09b4ff54dc8009f2b7bf5af0b11b3913abd45f420ab1638e69d444a3a6a970",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-04-05T12:19:03Z",
    "title_canon_sha256": "61cef51b8fc85d1e776c39fa35eec15b4b13ebdfa4a099097365c86faea3bc3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01801",
    "kind": "arxiv",
    "version": 2
  }
}