Pith Number

pith:4TE6ZWTD

pith:2018:4TE6ZWTD7MWZNTKYGZ22HLJJ3E

not attested not anchored not stored refs pending

Least-Squares Finite Element Method for Sea-Ice Dynamics

Fleurianne Bertrand

arxiv:1809.01344 v1 · 2018-09-05 · 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{4TE6ZWTD7MWZNTKYGZ22HLJJ3E}

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	2026-05-18T00:06:27.927970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4c9ecda63fb2d96cd583675a3ad29d9320185a53f93e31d685eecafbaee98e3

Aliases

arxiv: 1809.01344 · arxiv_version: 1809.01344v1 · doi: 10.48550/arxiv.1809.01344 · pith_short_12: 4TE6ZWTD7MWZ · pith_short_16: 4TE6ZWTD7MWZNTKY · pith_short_8: 4TE6ZWTD

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/4TE6ZWTD7MWZNTKYGZ22HLJJ3E \
  | 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: e4c9ecda63fb2d96cd583675a3ad29d9320185a53f93e31d685eecafbaee98e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddff8c151d404fb356a2d428729e7d5ea53dad229391953e125c183b09a9ce59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-05T06:18:05Z",
    "title_canon_sha256": "eb522adbfbadd41bab226eaba0f764218c2ab1f6d8412221744e364fbfbf4c2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01344",
    "kind": "arxiv",
    "version": 1
  }
}