Pith Number

pith:Q26WAXUN

pith:2014:Q26WAXUNUUWSHRWGJCLNMGXSLG

not attested not anchored not stored refs pending

Analysis of first order systems of partial differential equations

Dmitri Vassiliev, Yan-Long Fang

arxiv:1403.2663 v3 · 2014-03-11 · math.SP · math-ph · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q26WAXUNUUWSHRWGJCLNMGXSLG}

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	2026-05-18T01:25:16.291638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86bd605e8da52d23c6c64896d61af259bfe5958fddf0ec646949656625c669e4

Aliases

arxiv: 1403.2663 · arxiv_version: 1403.2663v3 · doi: 10.48550/arxiv.1403.2663 · pith_short_12: Q26WAXUNUUWS · pith_short_16: Q26WAXUNUUWSHRWG · pith_short_8: Q26WAXUN

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/Q26WAXUNUUWSHRWGJCLNMGXSLG \
  | 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: 86bd605e8da52d23c6c64896d61af259bfe5958fddf0ec646949656625c669e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e300f806a520f87ab747c093e18fc8c0b4a0c8cf59e306adf4a3897b643f061",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-03-11T17:54:35Z",
    "title_canon_sha256": "94474a65f5b4fe49f6934181f82a8f883312d7b622b9ebb715510b474d6dca67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.2663",
    "kind": "arxiv",
    "version": 3
  }
}