Pith Number

pith:ETAJRFT4

pith:2020:ETAJRFT45IE74LOY2DAN6KYOTG

not attested not anchored not stored refs pending

HDGlab: An open-source implementation of the hybridisable discontinuous Galerkin method in MATLAB

Antonio Huerta, Matteo Giacomini, Ruben Sevilla

arxiv:2009.08805 v1 · 2020-09-16 · cs.MS · cs.NA · 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{ETAJRFT45IE74LOY2DAN6KYOTG}

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	2026-07-05T02:52:13.915189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24c098967cea09fe2dd8d0c0df2b0e99b6f7c279965b24e16205e520e59e39e8

Aliases

arxiv: 2009.08805 · arxiv_version: 2009.08805v1 · doi: 10.48550/arxiv.2009.08805 · pith_short_12: ETAJRFT45IE7 · pith_short_16: ETAJRFT45IE74LOY · pith_short_8: ETAJRFT4

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/ETAJRFT45IE74LOY2DAN6KYOTG \
  | 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: 24c098967cea09fe2dd8d0c0df2b0e99b6f7c279965b24e16205e520e59e39e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41bed37b5ffa14dedf81e3fa5eb120ed76275d756af5d613db7afd4e3a52dce1",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2020-09-16T21:28:09Z",
    "title_canon_sha256": "fed6cab8f2a7deec082d7b07a683cba74e91815f698b0fb1bdd4637b971e9fdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08805",
    "kind": "arxiv",
    "version": 1
  }
}