Pith Number

pith:YRSWTMVH

pith:2015:YRSWTMVHK27PZZSPF2DE4PLIVN

not attested not anchored not stored refs pending

Conceptual Differential Calculus. I: First Order Local Linear Algebra

Wolfgang Bertram

arxiv:1503.04623 v2 · 2015-03-16 · math.CT · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YRSWTMVHK27PZZSPF2DE4PLIVN}

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	2026-05-18T01:36:25.649632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c46569b2a756befce64f2e864e3d68ab435a674d142b98ce102597df351e4897

Aliases

arxiv: 1503.04623 · arxiv_version: 1503.04623v2 · doi: 10.48550/arxiv.1503.04623 · pith_short_12: YRSWTMVHK27P · pith_short_16: YRSWTMVHK27PZZSP · pith_short_8: YRSWTMVH

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/YRSWTMVHK27PZZSPF2DE4PLIVN \
  | 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: c46569b2a756befce64f2e864e3d68ab435a674d142b98ce102597df351e4897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "952628bf73c09f29eb814e6ca2ee6b665d61a22d1d1bd5c3a838afe061d3bec6",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2015-03-16T12:31:06Z",
    "title_canon_sha256": "4426b1793e7f93cd36c16b65dc8ed06594f2d83424987b1872ac336369ac131a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04623",
    "kind": "arxiv",
    "version": 2
  }
}