Pith Number

pith:35SGE5GY

pith:2016:35SGE5GYI62Q72HEXSYFGM7LKQ

not attested not anchored not stored refs pending

Murray A. Marshall [24.3.1940 - 1.05.2015]: A brief mathematical obituary

Salma Kuhlmann

arxiv:1610.02250 v1 · 2016-10-07 · math.HO · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{35SGE5GYI62Q72HEXSYFGM7LKQ}

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	2026-05-18T00:02:28.355449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df646274d847b50fe8e4bcb05333eb543e87801e8e7f9561c1c4a13572f388ba

Aliases

arxiv: 1610.02250 · arxiv_version: 1610.02250v1 · doi: 10.48550/arxiv.1610.02250 · pith_short_12: 35SGE5GYI62Q · pith_short_16: 35SGE5GYI62Q72HE · pith_short_8: 35SGE5GY

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/35SGE5GYI62Q72HEXSYFGM7LKQ \
  | 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: df646274d847b50fe8e4bcb05333eb543e87801e8e7f9561c1c4a13572f388ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a01b114b9b2a2120757ac29585205c9fd0320ba75a9c4cbcd4c25ac80ea54725",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2016-10-07T12:31:40Z",
    "title_canon_sha256": "208085a06d646b3a2bc64de41ee897d45ffe5eccee5001ab13bdec42753a5fb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.02250",
    "kind": "arxiv",
    "version": 1
  }
}