Pith Number

pith:DWEDY4CO

pith:2017:DWEDY4CO2UNKDGMPXX6UALCDDH

not attested not anchored not stored refs pending

Optimised finite difference computation from symbolic equations

Charles Yount, Fabio Luporini, Gerard J. Gorman, Jan H\"uckelheim, Mathias Louboutin, Michael Lange, Navjot Kukreja

arxiv:1707.03776 v1 · 2017-07-12 · cs.MS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWEDY4CO2UNKDGMPXX6UALCDDH}

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	2026-05-18T00:40:24.842410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d883c704ed51aa1998fbdfd402c4319ebfdc06eb53b8c7f51d424ed5d7a0cf5

Aliases

arxiv: 1707.03776 · arxiv_version: 1707.03776v1 · doi: 10.48550/arxiv.1707.03776 · pith_short_12: DWEDY4CO2UNK · pith_short_16: DWEDY4CO2UNKDGMP · pith_short_8: DWEDY4CO

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/DWEDY4CO2UNKDGMPXX6UALCDDH \
  | 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: 1d883c704ed51aa1998fbdfd402c4319ebfdc06eb53b8c7f51d424ed5d7a0cf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed800f81d559374b7e3ef9aa44f7a2fc1f5883e5291881bae0f35fc65edd9d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2017-07-12T15:51:35Z",
    "title_canon_sha256": "e0d7c81896c0cf89cab5661b1d2a38fb128f44786a686560cb0c1e818fa64683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03776",
    "kind": "arxiv",
    "version": 1
  }
}