Pith Number

pith:B3Q2UCOT

pith:2018:B3Q2UCOTCWWFXF6BWMKHHJJALT

not attested not anchored not stored refs pending

Computing discrete Morse complexes from simplicial complexes

Federico Iuricich, Leila De Floriani, Ulderico Fugacci

arxiv:1811.04485 v1 · 2018-11-11 · 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{B3Q2UCOTCWWFXF6BWMKHHJJALT}

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	2026-05-18T00:01:05.035291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee1aa09d315ac5b97c1b31473a5205cef57d03986f38152ca1c8a5d9ae9db3c

Aliases

arxiv: 1811.04485 · arxiv_version: 1811.04485v1 · doi: 10.48550/arxiv.1811.04485 · pith_short_12: B3Q2UCOTCWWF · pith_short_16: B3Q2UCOTCWWFXF6B · pith_short_8: B3Q2UCOT

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/B3Q2UCOTCWWFXF6BWMKHHJJALT \
  | 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: 0ee1aa09d315ac5b97c1b31473a5205cef57d03986f38152ca1c8a5d9ae9db3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c80e0b7bbb138a333d841e86b24d0cac082038379ef6ec941d35e47b669b6da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-11-11T21:34:40Z",
    "title_canon_sha256": "6698e829e067fa581e30ca28567b8a75bd4aaf6c26c117f96be39ed31f410c27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04485",
    "kind": "arxiv",
    "version": 1
  }
}