Pith Number

pith:HND4CUT7

pith:2017:HND4CUT7ZGVNSS2AQ7XKCDMY7B

not attested not anchored not stored refs pending

Placing your Coins on a Shelf

Christian Knauer, Fabian Stehn, Helmut Alt, Kevin Buchin, Otfried Cheong, Philipp Kindermann, Steven Chaplick

arxiv:1707.01239 v2 · 2017-07-05 · cs.CG · 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{HND4CUT7ZGVNSS2AQ7XKCDMY7B}

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	2026-05-18T00:06:20.883603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b47c1527fc9aad94b4087eea10d98f849c65deed00b939346a0ad990339ed76

Aliases

arxiv: 1707.01239 · arxiv_version: 1707.01239v2 · doi: 10.48550/arxiv.1707.01239 · pith_short_12: HND4CUT7ZGVN · pith_short_16: HND4CUT7ZGVNSS2A · pith_short_8: HND4CUT7

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/HND4CUT7ZGVNSS2AQ7XKCDMY7B \
  | 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: 3b47c1527fc9aad94b4087eea10d98f849c65deed00b939346a0ad990339ed76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "027c533aa108c99860312607088f2b6330b0743492f7c59996cb31f9e9615dbe",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-07-05T07:35:46Z",
    "title_canon_sha256": "2e0223ef66ec1d5cfa148afe701ebdc2e2e959bc27be80702cda4f8f5dcee1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01239",
    "kind": "arxiv",
    "version": 2
  }
}