Pith Number

pith:H4CRM3E3

pith:2019:H4CRM3E3MFOMBHPODWFYZQZBL6

not attested not anchored not stored refs pending

The Prager-Synge theorem in reconstruction based a posteriori error estimation

Daniele Boffi, Fleurianne Bertrand

arxiv:1907.00440 v1 · 2019-06-30 · math.NA · cs.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{H4CRM3E3MFOMBHPODWFYZQZBL6}

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	2026-05-17T23:41:51.716145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f05166c9b615cc09dee1d8b8cc3215f868fb9b169b28fb4bea0ccdde47afe7d

Aliases

arxiv: 1907.00440 · arxiv_version: 1907.00440v1 · doi: 10.48550/arxiv.1907.00440 · pith_short_12: H4CRM3E3MFOM · pith_short_16: H4CRM3E3MFOMBHPO · pith_short_8: H4CRM3E3

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/H4CRM3E3MFOMBHPODWFYZQZBL6 \
  | 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: 3f05166c9b615cc09dee1d8b8cc3215f868fb9b169b28fb4bea0ccdde47afe7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0145476655d6805228e02e6bd7d67457e017e04026a205f41afdda69196945f7",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-06-30T19:52:05Z",
    "title_canon_sha256": "7805e1bdb29dc2c383aaa6eeb8a316230eb300144938621cf9bcf0ae2b3acb3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00440",
    "kind": "arxiv",
    "version": 1
  }
}