Pith Number

pith:PLVFOU6P

pith:2018:PLVFOU6P7CSN6CWU5WNF52MKNK

not attested not anchored not stored refs pending

Sound Approximation of Programs with Elementary Functions

Anastasia Volkova, Eva Darulova

arxiv:1811.10274 v1 · 2018-11-26 · cs.NA · cs.MS · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLVFOU6P7CSN6CWU5WNF52MKNK}

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	2026-05-17T23:59:56.925589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aea5753cff8a4df0ad4ed9a5ee98a6ab8121dd1e21b7ccc7c45240f6cc372c6

Aliases

arxiv: 1811.10274 · arxiv_version: 1811.10274v1 · doi: 10.48550/arxiv.1811.10274 · pith_short_12: PLVFOU6P7CSN · pith_short_16: PLVFOU6P7CSN6CWU · pith_short_8: PLVFOU6P

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/PLVFOU6P7CSN6CWU5WNF52MKNK \
  | 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: 7aea5753cff8a4df0ad4ed9a5ee98a6ab8121dd1e21b7ccc7c45240f6cc372c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69bfa676db1ea21977b24f4e33878f507b355fea78af0a464fd498d424d43f9",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-11-26T10:30:04Z",
    "title_canon_sha256": "d1804bd54fa8050614a13212f4b8de055643abbc174257f24283adbed7a070b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.10274",
    "kind": "arxiv",
    "version": 1
  }
}