Pith Number

pith:44PMYFLL

pith:2017:44PMYFLL4LEV6NYVXKTITIUXPJ

not attested not anchored not stored refs pending

On ill-posedness concepts, stable solvability and saturation

Bernd Hofmann, Robert Plato

arxiv:1709.01109 v1 · 2017-09-04 · 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{44PMYFLL4LEV6NYVXKTITIUXPJ}

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	2026-05-18T00:36:00.909732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e71ecc156be2c95f3715baa689a2977a578904625bbba4484ec7d683718a1476

Aliases

arxiv: 1709.01109 · arxiv_version: 1709.01109v1 · doi: 10.48550/arxiv.1709.01109 · pith_short_12: 44PMYFLL4LEV · pith_short_16: 44PMYFLL4LEV6NYV · pith_short_8: 44PMYFLL

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/44PMYFLL4LEV6NYVXKTITIUXPJ \
  | 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: e71ecc156be2c95f3715baa689a2977a578904625bbba4484ec7d683718a1476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f24c38d372f0fc8f3114137011e2330e0a6f396b0e4e63fa1cbe4c30bb11f710",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-04T18:38:07Z",
    "title_canon_sha256": "97b4e762fc2dde8c2e50997cf9735b6e7430d68d2c5a8271ff4a3c193a0c2cc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01109",
    "kind": "arxiv",
    "version": 1
  }
}