Pith Number

pith:DFTMQ7OU

pith:2011:DFTMQ7OUSAGK7MXTQKWDUBWTJV

not attested not anchored not stored refs pending

The Unified Method: II NLS on the Half-Line with $t$-Periodic Boundary Conditions

A. S. Fokas, J. Lenells

arxiv:1109.4936 v1 · 2011-09-21 · math.AP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFTMQ7OUSAGK7MXTQKWDUBWTJV}

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	2026-05-18T02:00:26.370182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1966c87dd4900cafb2f382ac3a06d34d7f6d6b14e25e3dafe1fbb05f2fdb64e7

Aliases

arxiv: 1109.4936 · arxiv_version: 1109.4936v1 · doi: 10.48550/arxiv.1109.4936 · pith_short_12: DFTMQ7OUSAGK · pith_short_16: DFTMQ7OUSAGK7MXT · pith_short_8: DFTMQ7OU

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/DFTMQ7OUSAGK7MXTQKWDUBWTJV \
  | 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: 1966c87dd4900cafb2f382ac3a06d34d7f6d6b14e25e3dafe1fbb05f2fdb64e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e028512f6cf5f0aea9b307ec4e031333ba6466c2d54b9752893f2c11209ae5d",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-09-21T19:06:42Z",
    "title_canon_sha256": "07784c456a0bc836aa02a3d0216b72733a0d260a5c9d3e6c1174bd385246a999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4936",
    "kind": "arxiv",
    "version": 1
  }
}