Pith Number

pith:PX2ICX7T

pith:2015:PX2ICX7T6JUSXRWOFG5CVOT3I2

not attested not anchored not stored refs pending

Local Error Estimates of the Finite Element Method for an Elliptic Problem with a Dirac Source Term

Astrid Decoene (LM-Orsay), Lo\"ic Lacouture (LM-Orsay), S\'ebastien Martin (MAP5), Silvia Bertoluzza

arxiv:1505.03032 v2 · 2015-05-12 · 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{PX2ICX7T6JUSXRWOFG5CVOT3I2}

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	2026-05-18T01:36:47.806350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7df4815ff3f2692bc6ce29ba2aba7b46a2e4cae73f254722031ed3901b4bfefe

Aliases

arxiv: 1505.03032 · arxiv_version: 1505.03032v2 · doi: 10.48550/arxiv.1505.03032 · pith_short_12: PX2ICX7T6JUS · pith_short_16: PX2ICX7T6JUSXRWO · pith_short_8: PX2ICX7T

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/PX2ICX7T6JUSXRWOFG5CVOT3I2 \
  | 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: 7df4815ff3f2692bc6ce29ba2aba7b46a2e4cae73f254722031ed3901b4bfefe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f862313a9c8e3dff8f7afc2aecce8dd30d3c7169dec90e20703f3e1ab4f2e62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-05-12T14:42:39Z",
    "title_canon_sha256": "5d34e8d9eaccb8c8d935fc632a49a847907ecee1747fb7afe5d4a35e64517e2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03032",
    "kind": "arxiv",
    "version": 2
  }
}