Pith Number

pith:DS2N4AC7

pith:2013:DS2N4AC7TWOPSLBLSGFJNEBPTM

not attested not anchored not stored refs pending

Normal Forms for Symplectic Matrices

Jean Gutt

arxiv:1307.2403 v2 · 2013-07-09 · 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{DS2N4AC7TWOPSLBLSGFJNEBPTM}

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	2026-05-18T02:56:05.182156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cb4de005f9d9cf92c2b918a96902f9b06756597b6b250611866f3062ecda129

Aliases

arxiv: 1307.2403 · arxiv_version: 1307.2403v2 · doi: 10.48550/arxiv.1307.2403 · pith_short_12: DS2N4AC7TWOP · pith_short_16: DS2N4AC7TWOPSLBL · pith_short_8: DS2N4AC7

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/DS2N4AC7TWOPSLBLSGFJNEBPTM \
  | 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: 1cb4de005f9d9cf92c2b918a96902f9b06756597b6b250611866f3062ecda129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5972ce85cc0c0f47fbba7dcd7c09ae3111fc767074c0bc83e7d38f84cb212ed3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2013-07-09T11:16:23Z",
    "title_canon_sha256": "791836359b0df46a89d044e6d00e243f8b9541d6bf4f724e2e6f77ffffa139b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2403",
    "kind": "arxiv",
    "version": 2
  }
}