Pith Number

pith:EY36JUNB

pith:2018:EY36JUNBTKBE5G5QAU3IWHZCJH

not attested not anchored not stored refs pending

Toward a Spectral Theory of Cellular Sheaves

Jakob Hansen, Robert Ghrist

arxiv:1808.01513 v2 · 2018-08-04 · math.AT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY36JUNBTKBE5G5QAU3IWHZCJH}

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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.

Cited by

1 paper in Pith

Functors on Posets Left Kan Extend to Cosheaves: an Erratum

Receipt and verification

First computed	2026-07-05T00:02:11.486131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2637e4d1a19a824e9bb005368b1f2249ebbaf572b35141c94a582046b27a708c

Aliases

arxiv: 1808.01513 · arxiv_version: 1808.01513v2 · doi: 10.48550/arxiv.1808.01513 · pith_short_12: EY36JUNBTKBE · pith_short_16: EY36JUNBTKBE5G5Q · pith_short_8: EY36JUNB

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/EY36JUNBTKBE5G5QAU3IWHZCJH \
  | 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: 2637e4d1a19a824e9bb005368b1f2249ebbaf572b35141c94a582046b27a708c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a107efedd11b7ae21e158b3eb3f7bda92f354a0fd70678bcb7a64fabc90222",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-08-04T17:49:21Z",
    "title_canon_sha256": "65f31a143662b6ea091d1b150a6967185087035067180bc1b0b0e774cc750b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01513",
    "kind": "arxiv",
    "version": 2
  }
}