Pith Number

pith:QHN4BOYQ

pith:2016:QHN4BOYQQU7CPS4S4EKMIXTEOL

not attested not anchored not stored refs pending

On the DPG method for Signorini problems

Ernst P. Stephan, Norbert Heuer, Thomas F\"uhrer

arxiv:1609.00765 v1 · 2016-09-02 · 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{QHN4BOYQQU7CPS4S4EKMIXTEOL}

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	2026-05-18T01:06:20.018056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81dbc0bb10853e27cb92e114c45e6472f1b09bbbeef1e9c41348046802164ab0

Aliases

arxiv: 1609.00765 · arxiv_version: 1609.00765v1 · doi: 10.48550/arxiv.1609.00765 · pith_short_12: QHN4BOYQQU7C · pith_short_16: QHN4BOYQQU7CPS4S · pith_short_8: QHN4BOYQ

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/QHN4BOYQQU7CPS4S4EKMIXTEOL \
  | 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: 81dbc0bb10853e27cb92e114c45e6472f1b09bbbeef1e9c41348046802164ab0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b7ed208987a7eeb5d2fb471a8cf7431b1800bdb856412a50af7422a8846a3d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-09-02T23:25:30Z",
    "title_canon_sha256": "6bd6de8bff4474b96cf3ce122627f4c96b00d0e3da26bc5eff00315feb6a035f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00765",
    "kind": "arxiv",
    "version": 1
  }
}