Pith Number

pith:AZ7J3MDR

pith:2009:AZ7J3MDRWUNLRB2EZB2A4VN7IU

not attested not anchored not stored refs pending

Stable Crank-Nicolson Discretisation for Incompressible Miscible Displacement Problems of Low Regularity

Max Jensen, Ruediger Mueller

arxiv:0910.1516 v1 · 2009-10-08 · 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{AZ7J3MDRWUNLRB2EZB2A4VN7IU}

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	2026-05-18T04:07:43.281782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

067e9db071b51ab88744c8740e55bf45396ee70223c79f21404466f36d9116f2

Aliases

arxiv: 0910.1516 · arxiv_version: 0910.1516v1 · doi: 10.48550/arxiv.0910.1516 · pith_short_12: AZ7J3MDRWUNL · pith_short_16: AZ7J3MDRWUNLRB2E · pith_short_8: AZ7J3MDR

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/AZ7J3MDRWUNLRB2EZB2A4VN7IU \
  | 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: 067e9db071b51ab88744c8740e55bf45396ee70223c79f21404466f36d9116f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5fdc5943d391e16dedf4ba465775e47a593f8ea718d56d1ff218ebb82ca5e0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-10-08T14:23:34Z",
    "title_canon_sha256": "f4713b2f8c0eb077c5726cd10f45c795f319acdbfe386885840aaaf214c7aa46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1516",
    "kind": "arxiv",
    "version": 1
  }
}