Pith Number

pith:SRXQW5VG

pith:2018:SRXQW5VGLHKKDWWSWCBNUTZP6K

not attested not anchored not stored refs pending

Symplectic integration of boundary value problems

Christian Offen, Robert I McLachlan

arxiv:1804.09042 v2 · 2018-04-23 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRXQW5VGLHKKDWWSWCBNUTZP6K}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:05:31.440401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

946f0b76a659d4a1dad2b082da4f2ff2b88277470851eb7837837c225f0c5fe6

Aliases

arxiv: 1804.09042 · arxiv_version: 1804.09042v2 · doi: 10.48550/arxiv.1804.09042 · pith_short_12: SRXQW5VGLHKK · pith_short_16: SRXQW5VGLHKKDWWS · pith_short_8: SRXQW5VG

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/SRXQW5VGLHKKDWWSWCBNUTZP6K \
  | 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: 946f0b76a659d4a1dad2b082da4f2ff2b88277470851eb7837837c225f0c5fe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52a2b046ddf22e2991ff2d1d77a0afd37d6619aecfde6864c7681385c0c3ab9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-23T06:02:20Z",
    "title_canon_sha256": "3a535d4feffbd7ee7ac2e8eb8e5d7ce1ccf36287bd2d60c9f8f2856bcc53c357"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09042",
    "kind": "arxiv",
    "version": 2
  }
}