Pith Number

pith:JFKAYDOM

pith:2011:JFKAYDOMYJRDAR3AKJFPVDWADU

not attested not anchored not stored refs pending

Adjoint methods for obstacle problems and weakly coupled systems of PDE

Diogo Gomes, Filippo Cagnetti, Hung Tran

arxiv:1103.3226 v2 · 2011-03-16 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFKAYDOMYJRDAR3AKJFPVDWADU}

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	2026-05-18T03:31:18.078279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49540c0dccc262304760524afa8ec01d1a07aacd18dec04c653e0ba4dfde9131

Aliases

arxiv: 1103.3226 · arxiv_version: 1103.3226v2 · doi: 10.48550/arxiv.1103.3226 · pith_short_12: JFKAYDOMYJRD · pith_short_16: JFKAYDOMYJRDAR3A · pith_short_8: JFKAYDOM

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/JFKAYDOMYJRDAR3AKJFPVDWADU \
  | 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: 49540c0dccc262304760524afa8ec01d1a07aacd18dec04c653e0ba4dfde9131

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e436fe36af8b74b4b2fcd25a0569252f73959daaadb8e4289dab764c7481eca6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-03-16T16:39:50Z",
    "title_canon_sha256": "4df0282d93dd36c01af7781130b998d7b754820af0ff32c935f75532ffab2079"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3226",
    "kind": "arxiv",
    "version": 2
  }
}