Pith Number

pith:SIVQ646C

pith:2018:SIVQ646CPWHJKAS72K3VHUE7YJ

not attested not anchored not stored refs pending

An HDG Method for Dirichlet Boundary Control of Convection Dominated Diffusion PDE

Gang Chen, John Richard Singler, Yangwen Zhang

arxiv:1811.09700 v1 · 2018-11-23 · math.NA · cs.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{SIVQ646CPWHJKAS72K3VHUE7YJ}

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	2026-06-04T20:13:43.143300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

922b0f73c27d8e95025fd2b753d09fc25f24708a99bcaf2ed6f72a6b3052b1a9

Aliases

arxiv: 1811.09700 · arxiv_version: 1811.09700v1 · doi: 10.48550/arxiv.1811.09700 · pith_short_12: SIVQ646CPWHJ · pith_short_16: SIVQ646CPWHJKAS7 · pith_short_8: SIVQ646C

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/SIVQ646CPWHJKAS72K3VHUE7YJ \
  | 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: 922b0f73c27d8e95025fd2b753d09fc25f24708a99bcaf2ed6f72a6b3052b1a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10b2d020753d333aea95b7c93f02f003f067b33965b8c45a34d2962032905c62",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-23T21:25:19Z",
    "title_canon_sha256": "ff5a5d4bd4471086b9d466513f8c94638dede7577c1d315cf887e4faf5071cb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09700",
    "kind": "arxiv",
    "version": 1
  }
}