Pith Number

pith:OVFE55VT

pith:2018:OVFE55VT2THC34JA64MP75VZOR

not attested not anchored not stored refs pending

Finding steady-state solutions for ODE systems of zero, first and homogeneous second-order chemical reactions is NP-hard

Marcelo S. Reis

arxiv:1803.00618 v2 · 2018-02-27 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OVFE55VT2THC34JA64MP75VZOR}

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	2026-05-18T00:18:51.639198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

754a4ef6b3d4ce2df120f718fff6b974677070312c705144008e42cf5183885b

Aliases

arxiv: 1803.00618 · arxiv_version: 1803.00618v2 · doi: 10.48550/arxiv.1803.00618 · pith_short_12: OVFE55VT2THC · pith_short_16: OVFE55VT2THC34JA · pith_short_8: OVFE55VT

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/OVFE55VT2THC34JA64MP75VZOR \
  | 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: 754a4ef6b3d4ce2df120f718fff6b974677070312c705144008e42cf5183885b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ccd3150345f8a83e9e385b6bdd14938359625caa9c330733079a3821ca68b0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-02-27T14:33:36Z",
    "title_canon_sha256": "6a117b5aa94ccc84979fc1f0d3dde3223378e9cb85cdcf8ab211e0e06e57ece5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00618",
    "kind": "arxiv",
    "version": 2
  }
}