Pith Number

pith:7XDVF5JK

pith:2018:7XDVF5JKXK7T6LDIKLTUTGTK7V

not attested not anchored not stored refs pending

Discontinuous Galerkin method for coupling hydrostatic free surface flows to saturated subsurface systems

Andreas Rupp, Balthasar Reuter, Peter Knabner, Vadym Aizinger

arxiv:1806.03909 v1 · 2018-06-11 · 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{7XDVF5JKXK7T6LDIKLTUTGTK7V}

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	2026-05-18T00:13:41.557981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdc752f52ababf3f2c6852e7499a6afd617e160809832b6270df49cf4eb79bec

Aliases

arxiv: 1806.03909 · arxiv_version: 1806.03909v1 · doi: 10.48550/arxiv.1806.03909 · pith_short_12: 7XDVF5JKXK7T · pith_short_16: 7XDVF5JKXK7T6LDI · pith_short_8: 7XDVF5JK

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/7XDVF5JKXK7T6LDIKLTUTGTK7V \
  | 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: fdc752f52ababf3f2c6852e7499a6afd617e160809832b6270df49cf4eb79bec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bea8ff9a572df67a82bce7b29f58d77fba50d6d11f91d7170ba3d4cbd69a5898",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-06-11T11:16:21Z",
    "title_canon_sha256": "feadc1040abd6416b046164de02b8cb1a99f689bda200f9cd1cb5c4d6ffaad2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03909",
    "kind": "arxiv",
    "version": 1
  }
}