Pith Number

pith:QNTRIRCK

pith:2015:QNTRIRCK4JOHGTTLJDOH3GAEVS

not attested not anchored not stored refs pending

Isoptic surfaces of polyhedra

G\'eza Csima, Jen\H{o} Szirmai

arxiv:1510.07718 v1 · 2015-10-26 · 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{QNTRIRCK4JOHGTTLJDOH3GAEVS}

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	2026-05-18T01:29:12.815058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

836714444ae25c734e6b48dc7d9804acb370c703bfa3ce3c00cb56cd3a486968

Aliases

arxiv: 1510.07718 · arxiv_version: 1510.07718v1 · doi: 10.48550/arxiv.1510.07718 · pith_short_12: QNTRIRCK4JOH · pith_short_16: QNTRIRCK4JOHGTTL · pith_short_8: QNTRIRCK

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/QNTRIRCK4JOHGTTLJDOH3GAEVS \
  | 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: 836714444ae25c734e6b48dc7d9804acb370c703bfa3ce3c00cb56cd3a486968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b22b76a6c274562a38ae8eeb5772cb816f6bebc33aadb587dee4bd301c4009f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2015-10-26T23:33:17Z",
    "title_canon_sha256": "ffba0f95fa1f08f4fb6d5f9d4ccee3995a3af6aec008b2a420b8f1e17a3c8888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07718",
    "kind": "arxiv",
    "version": 1
  }
}