Pith Number

pith:DF6DCDIA

pith:2018:DF6DCDIAFJCHMGRFQAYY4KZBI2

not attested not anchored not stored refs pending

Energy preserving methods for nonlinear Schr\"odinger equations

Christophe Besse (IMT), Guillaume Dujardin (MEPHYSTO-POST), Ingrid Lacroix-Violet (RAPSODI ), Stephane Descombes (NACHOS)

arxiv:1812.04890 v1 · 2018-12-12 · math.NA · physics.optics · quant-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{DF6DCDIAFJCHMGRFQAYY4KZBI2}

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	2026-05-17T23:58:27.013935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197c310d002a44761a2580318e2b21468e6a81c88c1655be442217368a56d7af

Aliases

arxiv: 1812.04890 · arxiv_version: 1812.04890v1 · doi: 10.48550/arxiv.1812.04890 · pith_short_12: DF6DCDIAFJCH · pith_short_16: DF6DCDIAFJCHMGRF · pith_short_8: DF6DCDIA

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/DF6DCDIAFJCHMGRFQAYY4KZBI2 \
  | 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: 197c310d002a44761a2580318e2b21468e6a81c88c1655be442217368a56d7af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95d6e68db54529db2deebaf872532360d1d0352cb7e517e1c62990d66672eccc",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-12T10:57:01Z",
    "title_canon_sha256": "6f4c6836b44f90f8a20698edc752ad7a95283fbeb65fbeab176df435b81e0900"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04890",
    "kind": "arxiv",
    "version": 1
  }
}