Pith Number

pith:5I4MPQVY

pith:2018:5I4MPQVYVZJ56WX7TQQI7JUUR3

not attested not anchored not stored refs pending

Exponential collocation methods for the cubic Schr\"{o}dinger equation

Bin Wang, Xinyuan Wu

arxiv:1802.02831 v2 · 2018-02-08 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5I4MPQVYVZJ56WX7TQQI7JUUR3}

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	2026-05-18T00:09:09.619182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea38c7c2b8ae53df5aff9c208fa6948ef5c9d7c9c2d232257beb626992d7013f

Aliases

arxiv: 1802.02831 · arxiv_version: 1802.02831v2 · doi: 10.48550/arxiv.1802.02831 · pith_short_12: 5I4MPQVYVZJ5 · pith_short_16: 5I4MPQVYVZJ56WX7 · pith_short_8: 5I4MPQVY

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/5I4MPQVYVZJ56WX7TQQI7JUUR3 \
  | 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: ea38c7c2b8ae53df5aff9c208fa6948ef5c9d7c9c2d232257beb626992d7013f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ce78431d32b7234e75d3f12157e0b2c554ebcd8b18b7e259948239ad0616e7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-08T12:39:59Z",
    "title_canon_sha256": "f40fdc598c653c6f6e96bb766160fd87f94a40b85f15c8520ae4597a7b866824"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02831",
    "kind": "arxiv",
    "version": 2
  }
}