Pith Number

pith:CDWOPW4R

pith:2015:CDWOPW4RHDB2XURYEM7D4JZ4QD

not attested not anchored not stored refs pending

A note on positive definite, symplectic four-manifolds

Jennifer Hom, Tye Lidman

arxiv:1510.00373 v1 · 2015-10-01 · math.GT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDWOPW4RHDB2XURYEM7D4JZ4QD}

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	2026-05-18T01:31:19.482850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10ece7db9138c3abd238233e3e273c80e52002fc27bba62f7301d709788865be

Aliases

arxiv: 1510.00373 · arxiv_version: 1510.00373v1 · doi: 10.48550/arxiv.1510.00373 · pith_short_12: CDWOPW4RHDB2 · pith_short_16: CDWOPW4RHDB2XURY · pith_short_8: CDWOPW4R

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/CDWOPW4RHDB2XURYEM7D4JZ4QD \
  | 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: 10ece7db9138c3abd238233e3e273c80e52002fc27bba62f7301d709788865be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42e2b1b86b9576304b92b6e02c6d21b4a6fe460c492735d7a452c1b5fba6ba65",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-10-01T19:23:24Z",
    "title_canon_sha256": "2637b7009536475d86b374ff51712bf8a3347c071fa465e3ae993108ae6be172"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00373",
    "kind": "arxiv",
    "version": 1
  }
}