Pith Number

pith:DSAYBOXG

pith:2018:DSAYBOXGGOOBEJHSCG4AJY522N

not attested not anchored not stored refs pending

Invariant Whitney Functions

Hans-Christian Herbig, Markus J. Pflaum

arxiv:1802.00143 v2 · 2018-02-01 · math.SG · math.AC · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DSAYBOXGGOOBEJHSCG4AJY522N}

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	2026-05-17T23:47:16.098285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c8180bae6339c1224f211b804e3bad35063ede74d5c0f5c4be88cb69b5e4497

Aliases

arxiv: 1802.00143 · arxiv_version: 1802.00143v2 · doi: 10.48550/arxiv.1802.00143 · pith_short_12: DSAYBOXGGOOB · pith_short_16: DSAYBOXGGOOBEJHS · pith_short_8: DSAYBOXG

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/DSAYBOXGGOOBEJHSCG4AJY522N \
  | 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: 1c8180bae6339c1224f211b804e3bad35063ede74d5c0f5c4be88cb69b5e4497

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19f85f6b446ac2abc2bd7924e6637880a21f7b7930881778ef23b8be252b691c",
    "cross_cats_sorted": [
      "math.AC",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2018-02-01T03:12:06Z",
    "title_canon_sha256": "772ff4349f1014e9836513fec63276b152369e0b82778d25e69eaa4f9be4c561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00143",
    "kind": "arxiv",
    "version": 2
  }
}