Pith Number

pith:SHFDRCPK

pith:2002:SHFDRCPKI5RGI474LAYXCF66KZ

not attested not anchored not stored refs pending

The Discrete Nonlinear Schr\"odinger equation - 20 Years on

Edinburgh, J. Chris Eilbeck (Heriot-Watt University, Magnus Johansson (Link\"oping University, Sweden), UK)

arxiv:nlin/0211049 v1 · 2002-11-27 · nlin.PS · cond-mat · nlin.CD · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SHFDRCPKI5RGI474LAYXCF66KZ}

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	2026-07-04T14:41:45.409757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ca3889ea47626473fc58317117de5645f05c44f2c64eb2a09c35bdc9e64cff

Aliases

arxiv: nlin/0211049 · arxiv_version: nlin/0211049v1 · doi: 10.48550/arxiv.nlin/0211049 · pith_short_12: SHFDRCPKI5RG · pith_short_16: SHFDRCPKI5RGI474 · pith_short_8: SHFDRCPK

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/SHFDRCPKI5RGI474LAYXCF66KZ \
  | 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: 91ca3889ea47626473fc58317117de5645f05c44f2c64eb2a09c35bdc9e64cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4638ea0c65139e29c76f22e8e14e146dff81ede7d79fa00433635f02d1dcaa57",
    "cross_cats_sorted": [
      "cond-mat",
      "nlin.CD",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "nlin.PS",
    "submitted_at": "2002-11-27T17:31:23Z",
    "title_canon_sha256": "75c1cb207cd4aa9cd17720002b86175997e4a13ba12ff827438062039157615b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0211049",
    "kind": "arxiv",
    "version": 1
  }
}