Pith Number

pith:LXJ7RO3X

pith:2017:LXJ7RO3XV2HINTE6GTZ3AASB7F

not attested not anchored not stored refs pending

Euler vs. Lagrange: The role of coordinates in practical Evans-function computations

Blake Barker, Gregory Lyng, Jeffrey Humpherys, Kevin Zumbrun

arxiv:1707.01938 v1 · 2017-07-06 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LXJ7RO3XV2HINTE6GTZ3AASB7F}

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	2026-05-18T00:40:45.796002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5dd3f8bb77ae8e86cc9e34f3b00241f94a7a01440b4b95f6e439c9a8c019cd5b

Aliases

arxiv: 1707.01938 · arxiv_version: 1707.01938v1 · doi: 10.48550/arxiv.1707.01938 · pith_short_12: LXJ7RO3XV2HI · pith_short_16: LXJ7RO3XV2HINTE6 · pith_short_8: LXJ7RO3X

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/LXJ7RO3XV2HINTE6GTZ3AASB7F \
  | 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: 5dd3f8bb77ae8e86cc9e34f3b00241f94a7a01440b4b95f6e439c9a8c019cd5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47b6884c711b9c925721f1aa3738e19fde30d7db904fc13c7bf102a09e13f070",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-07-06T18:55:18Z",
    "title_canon_sha256": "b2a4a7b14cb38b2e5eba943efcbc0cc2668a499bfa8759cb4c13d86430e0073e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01938",
    "kind": "arxiv",
    "version": 1
  }
}