Pith Number

pith:HXINGCMK

pith:2018:HXINGCMK3RTLS4PW2UIVFQG55K

not attested not anchored not stored refs pending

Challenges in Reconstructing Shapes from Euler Characteristic Curves

Anna Schenfisch, Brittany Terese Fasy, David L. Millman, Lucia Williams, Samuel Micka

arxiv:1811.11337 v1 · 2018-11-28 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXINGCMK3RTLS4PW2UIVFQG55K}

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	2026-05-17T23:59:44.164405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dd0d3098adc66b971f6d51152c0ddeab47f7f471a77f7565fd67c50c254ce19

Aliases

arxiv: 1811.11337 · arxiv_version: 1811.11337v1 · doi: 10.48550/arxiv.1811.11337 · pith_short_12: HXINGCMK3RTL · pith_short_16: HXINGCMK3RTLS4PW · pith_short_8: HXINGCMK

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/HXINGCMK3RTLS4PW2UIVFQG55K \
  | 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: 3dd0d3098adc66b971f6d51152c0ddeab47f7f471a77f7565fd67c50c254ce19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45c5125a04b6b209ce73c7e53512ff09617cddcffe7d184a4c099c97d8d000a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-11-28T01:36:47Z",
    "title_canon_sha256": "002e9875eba9c19b03ecb8b56e052f0cbeb33856f77a148af90535e3518a8fe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11337",
    "kind": "arxiv",
    "version": 1
  }
}