Pith Number

pith:ZHXL4B5M

pith:2001:ZHXL4B5MJ4HIS2JBPVOFZDDDNP

not attested not anchored not stored refs pending

On Symplectic Cobordisms

John B. Etnyre, Ko Honda

arxiv:math/0102162 v1 · 2001-02-20 · math.SG · math.DG · 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{ZHXL4B5MJ4HIS2JBPVOFZDDDNP}

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.

Cited by

1 paper in Pith

Boundary framings for locally conformally symplectic four-manifolds

Receipt and verification

First computed	2026-07-04T14:35:05.352969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9eebe07ac4f0e8969217d5c5c8c636bc9cf9c9809b30cee2453f73998b71494

Aliases

arxiv: math/0102162 · arxiv_version: math/0102162v1 · doi: 10.48550/arxiv.math/0102162 · pith_short_12: ZHXL4B5MJ4HI · pith_short_16: ZHXL4B5MJ4HIS2JB · pith_short_8: ZHXL4B5M

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/ZHXL4B5MJ4HIS2JBPVOFZDDDNP \
  | 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: c9eebe07ac4f0e8969217d5c5c8c636bc9cf9c9809b30cee2453f73998b71494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2c9c87d5db2c4c12d666072f2b7277dc77cf86ee993c548c178d6a96508314e",
    "cross_cats_sorted": [
      "math.DG",
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2001-02-20T17:26:34Z",
    "title_canon_sha256": "635f7a86ae310180a9a5793ee51bf7e7dc3d80d3b5991ce36da026075ba6e9f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0102162",
    "kind": "arxiv",
    "version": 1
  }
}