Pith Number

pith:4Y4ZWTJE

pith:2017:4Y4ZWTJEKQEM3XGDVVZXWOVEGU

not attested not anchored not stored refs pending

Admissible Complexes for the Projective X-Ray Transform over a Finite Field

David V. Feldman, Eric L. Grinberg

arxiv:1707.06695 v2 · 2017-07-20 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Y4ZWTJEKQEM3XGDVVZXWOVEGU}

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	2026-05-18T00:39:30.825880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6399b4d245408cddcc3ad737b3aa4350f0be20128189491470df5b5b91b1c73

Aliases

arxiv: 1707.06695 · arxiv_version: 1707.06695v2 · doi: 10.48550/arxiv.1707.06695 · pith_short_12: 4Y4ZWTJEKQEM · pith_short_16: 4Y4ZWTJEKQEM3XGD · pith_short_8: 4Y4ZWTJE

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/4Y4ZWTJEKQEM3XGDVVZXWOVEGU \
  | 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: e6399b4d245408cddcc3ad737b3aa4350f0be20128189491470df5b5b91b1c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f2f11a4258a8e49a64036f1b7fce7439a8e5ef83277a425eba6996b05da8bc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-07-20T20:05:06Z",
    "title_canon_sha256": "6194b190fbf5adc71d7fb318f748fd82e45139a2f6161386ab254dd5bbfe80ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06695",
    "kind": "arxiv",
    "version": 2
  }
}