Pith Number

pith:MDV5CSW3

pith:2019:MDV5CSW3JDRQRWGEBXI5UUYO23

not attested not anchored not stored refs pending

Sparse Identification of Truncation Errors

Ludger Paehler, Nikolaus A. Adams, Stephan Thaler

arxiv:1904.03669 v2 · 2019-04-07 · 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{MDV5CSW3JDRQRWGEBXI5UUYO23}

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	2026-06-04T20:14:23.653809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60ebd14adb48e308d8c40dd1da530ed6dd67e6016d2db9d8d3de1e2e70401398

Aliases

arxiv: 1904.03669 · arxiv_version: 1904.03669v2 · doi: 10.48550/arxiv.1904.03669 · pith_short_12: MDV5CSW3JDRQ · pith_short_16: MDV5CSW3JDRQRWGE · pith_short_8: MDV5CSW3

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/MDV5CSW3JDRQRWGEBXI5UUYO23 \
  | 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: 60ebd14adb48e308d8c40dd1da530ed6dd67e6016d2db9d8d3de1e2e70401398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "801c8332b3f8d23d9d2712d6514fc1d2c5a0ad19402d35a19a5b6f47893921fe",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-07T15:23:00Z",
    "title_canon_sha256": "c920ea625a8ca795ed94861dd29e87eabec21d45404bb349c6b1195dc3131f39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03669",
    "kind": "arxiv",
    "version": 2
  }
}