Pith Number

pith:66SFAJNS

pith:2019:66SFAJNS4KCGTSRAV5AQEFPYMP

not attested not anchored not stored refs pending

Comparison Between, and Validation Against an Experiment of, a Slowly-Varying Envelope Approximation Code and a Particle-in-Cell Simulation Code for Free-Electron Lasers

B.W.J. McNeil, H.P. Freund, J. Henderson, L.T. Campbell, P.J.M. van der Slot, P. Traczykowski

arxiv:1906.01996 v2 · 2019-06-04 · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66SFAJNS4KCGTSRAV5AQEFPYMP}

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	2026-05-17T23:43:14.170561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a45025b2e28469ca20af410215f863d43ce88deaaa5454544e47a250cb9ee0

Aliases

arxiv: 1906.01996 · arxiv_version: 1906.01996v2 · doi: 10.48550/arxiv.1906.01996 · pith_short_12: 66SFAJNS4KCG · pith_short_16: 66SFAJNS4KCGTSRA · pith_short_8: 66SFAJNS

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/66SFAJNS4KCGTSRAV5AQEFPYMP \
  | 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: f7a45025b2e28469ca20af410215f863d43ce88deaaa5454544e47a250cb9ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d6d7e0c7b34ff703e16cb7f01b89e16cfc4103382fc77605bbe45c4e14762e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2019-06-04T14:06:32Z",
    "title_canon_sha256": "e6754f50fdbc2ab04a07cab7092b6500cea6bb06c5b2e32880afc5655447d700"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01996",
    "kind": "arxiv",
    "version": 2
  }
}