Pith Number

pith:OPPBXSPX

pith:2017:OPPBXSPX5EFEMWODE3RKFDQWRG

not attested not anchored not stored refs pending

Superconvergence in a DPG method for an ultra-weak formulation

Thomas F\"uhrer

arxiv:1707.06979 v2 · 2017-07-21 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPPBXSPX5EFEMWODE3RKFDQWRG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:27:36.017749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73de1bc9f7e90a4659c326e2a28e1689afd499a13c87519163f501da1b12a753

Aliases

arxiv: 1707.06979 · arxiv_version: 1707.06979v2 · doi: 10.48550/arxiv.1707.06979 · pith_short_12: OPPBXSPX5EFE · pith_short_16: OPPBXSPX5EFEMWOD · pith_short_8: OPPBXSPX

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/OPPBXSPX5EFEMWODE3RKFDQWRG \
  | 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: 73de1bc9f7e90a4659c326e2a28e1689afd499a13c87519163f501da1b12a753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca52a7630e1210c45a779841f86b9f744576a5bd74d45274debebae5c197fd8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-21T17:21:04Z",
    "title_canon_sha256": "5a0c8162d80e9d464138e4fb76f8cea18310ed9badc838815013bd3764e66dca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06979",
    "kind": "arxiv",
    "version": 2
  }
}