Pith Number

pith:ZCQWYNFE

pith:2017:ZCQWYNFE5VUE62FLI5JQTH6QV6

not attested not anchored not stored refs pending

Compact manifolds with fixed boundary and large Steklov eigenvalues

Ahmad El Soufi, Alexandre Girouard, Bruno Colbois

arxiv:1701.04125 v2 · 2017-01-15 · math.SP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCQWYNFE5VUE62FLI5JQTH6QV6}

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	2026-05-18T00:03:25.198582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8a16c34a4ed684f68ab4753099fd0af964233a380e7464646bd1915e9b47b4f

Aliases

arxiv: 1701.04125 · arxiv_version: 1701.04125v2 · doi: 10.48550/arxiv.1701.04125 · pith_short_12: ZCQWYNFE5VUE · pith_short_16: ZCQWYNFE5VUE62FL · pith_short_8: ZCQWYNFE

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/ZCQWYNFE5VUE62FLI5JQTH6QV6 \
  | 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: c8a16c34a4ed684f68ab4753099fd0af964233a380e7464646bd1915e9b47b4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec5e7e3ee0556a2ac228e892ee4af0072ab1a2560eed087221f3c599f1e57977",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2017-01-15T22:58:46Z",
    "title_canon_sha256": "9754381ba2939728804204ba0e616b6724d58d740bcd25dea93a97caaf528ec6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04125",
    "kind": "arxiv",
    "version": 2
  }
}