Pith Number

pith:P6UYUWJR

pith:2013:P6UYUWJRK54P3RIW62VONBCME3

not attested not anchored not stored refs pending

From Raviart-Thomas to HDG

Francisco-Javier Sayas

arxiv:1307.2491 v1 · 2013-07-09 · 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{P6UYUWJRK54P3RIW62VONBCME3}

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	2026-05-18T03:18:52.357067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fa98a59315778fdc516f6aae6844c26dfe3e0a545dbe32d5558e11f0e8895f5

Aliases

arxiv: 1307.2491 · arxiv_version: 1307.2491v1 · doi: 10.48550/arxiv.1307.2491 · pith_short_12: P6UYUWJRK54P · pith_short_16: P6UYUWJRK54P3RIW · pith_short_8: P6UYUWJR

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/P6UYUWJRK54P3RIW62VONBCME3 \
  | 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: 7fa98a59315778fdc516f6aae6844c26dfe3e0a545dbe32d5558e11f0e8895f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f972af1c9d92c33c34177342eb2369fd03839d34602bf1d487f0a37091b1185",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-07-09T15:22:27Z",
    "title_canon_sha256": "98f0e635317b3514ec63ad5387f994015ebf53bec340ad36d24d69969cdbebcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2491",
    "kind": "arxiv",
    "version": 1
  }
}