Pith Number

pith:F7HYL22R

pith:2016:F7HYL22RF64XAPJHMASVMLDDVM

not attested not anchored not stored refs pending

Existence of minimal flows on nonorientable surfaces

D. Peralta-Salas, G. Soler L\'opez, J.G. Esp\'in Buend\'ia

arxiv:1608.08788 v2 · 2016-08-31 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7HYL22RF64XAPJHMASVMLDDVM}

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	2026-05-18T00:52:44.116357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fcf85eb512fb9703d276025562c63ab1f6b4213c2fa49388fac0e0505502ac1

Aliases

arxiv: 1608.08788 · arxiv_version: 1608.08788v2 · doi: 10.48550/arxiv.1608.08788 · pith_short_12: F7HYL22RF64X · pith_short_16: F7HYL22RF64XAPJH · pith_short_8: F7HYL22R

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/F7HYL22RF64XAPJHMASVMLDDVM \
  | 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: 2fcf85eb512fb9703d276025562c63ab1f6b4213c2fa49388fac0e0505502ac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96fa61e32d02abd3c44d82388fdac4467cd66a5631103e80f6ceac947eb8311f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-08-31T09:42:50Z",
    "title_canon_sha256": "80edd815a017a54e1dfe83f19c9807109539810b67276887f071801c2a0c93c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.08788",
    "kind": "arxiv",
    "version": 2
  }
}