Pith Number

pith:EHKCD7SZ

pith:2015:EHKCD7SZOKC4IK37ELIL2BPWGS

not attested not anchored not stored refs pending

Some Open Book and Contact Structures on Moment-Angle Manifolds

Alberto Verjovsky, Santiago L\'opez de Medrano, Yadira Barreto

arxiv:1510.07729 v4 · 2015-10-27 · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHKCD7SZOKC4IK37ELIL2BPWGS}

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	2026-05-17T23:39:28.040858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d421fe597285c42b7f22d0bd05f634a893c8b4e2d6811db67e20eb33e7e065

Aliases

arxiv: 1510.07729 · arxiv_version: 1510.07729v4 · doi: 10.48550/arxiv.1510.07729 · pith_short_12: EHKCD7SZOKC4 · pith_short_16: EHKCD7SZOKC4IK37 · pith_short_8: EHKCD7SZ

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/EHKCD7SZOKC4IK37ELIL2BPWGS \
  | 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: 21d421fe597285c42b7f22d0bd05f634a893c8b4e2d6811db67e20eb33e7e065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "462a0b785799c7c91bbd0c457783521dfe5a89d973763c68aad4cc5009e16c19",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-10-27T00:06:23Z",
    "title_canon_sha256": "4f86bdee5db472ee72b577308e1d9a63b8c20bedc5993dbd560262d5039bd79f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07729",
    "kind": "arxiv",
    "version": 4
  }
}