Pith Number

pith:EWEYMWNE

pith:2015:EWEYMWNEQ5L7FDQKRVQPEJB7K4

not attested not anchored not stored refs pending

Diffuse Interface Methods for Inverse Problems: Case Study for an Elliptic Cauchy Problem

Martin Burger, Matthias Schlottbom, Ole Loseth Elvetun

arxiv:1506.05655 v2 · 2015-06-18 · 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{EWEYMWNEQ5L7FDQKRVQPEJB7K4}

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	2026-05-18T01:37:03.530657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25898659a48757f28e0a8d60f2243f5709790324e2cb1500fde8d52a92c99f7e

Aliases

arxiv: 1506.05655 · arxiv_version: 1506.05655v2 · doi: 10.48550/arxiv.1506.05655 · pith_short_12: EWEYMWNEQ5L7 · pith_short_16: EWEYMWNEQ5L7FDQK · pith_short_8: EWEYMWNE

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/EWEYMWNEQ5L7FDQKRVQPEJB7K4 \
  | 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: 25898659a48757f28e0a8d60f2243f5709790324e2cb1500fde8d52a92c99f7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6e74c5322bbbc36439f906dd90aae16d33acda9f531adda0d907c755fd092aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-06-18T12:46:59Z",
    "title_canon_sha256": "665b953cf291b141b0392b04adb3a256ad3a32a2ca45c22b6e66cc1fbcef7703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05655",
    "kind": "arxiv",
    "version": 2
  }
}