Pith Number

pith:QWWACY6Q

pith:2010:QWWACY6QFMPZUI3Q5GNAKOXEUL

not attested not anchored not stored refs pending

Minimal data at a given point of space for solutions to certain geometric systems

Andr\'es E. Ace\~na

arxiv:1001.2230 v1 · 2010-01-13 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWWACY6QFMPZUI3Q5GNAKOXEUL}

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	2026-05-18T02:09:52.743548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ac0163d02b1f9a2370e99a053ae4a2f7a5d448452228697edd5676dfa59583

Aliases

arxiv: 1001.2230 · arxiv_version: 1001.2230v1 · doi: 10.48550/arxiv.1001.2230 · pith_short_12: QWWACY6QFMPZ · pith_short_16: QWWACY6QFMPZUI3Q · pith_short_8: QWWACY6Q

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/QWWACY6QFMPZUI3Q5GNAKOXEUL \
  | 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: 85ac0163d02b1f9a2370e99a053ae4a2f7a5d448452228697edd5676dfa59583

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c6f600a324b1a4f6a7437b491f37d04570826d9c9b64c6dabaa2bd58fb294b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-01-13T16:45:07Z",
    "title_canon_sha256": "c7d81e8cc7c746a3f51097eca13a88c1147686e6e19a1c4af77518a823de289f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2230",
    "kind": "arxiv",
    "version": 1
  }
}