Pith Number

pith:HVDNSQAR

pith:2020:HVDNSQARMKELM6Q6BNNJCHZAIO

not attested not anchored not stored refs pending

Nonlinear Function Inversion using k-vector

Daniele Mortari, David Arnas

arxiv:2004.02342 v1 · 2020-04-05 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVDNSQARMKELM6Q6BNNJCHZAIO}

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	2026-07-05T00:52:58.007261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d46d940116288b67a1e0b5a911f2043bc829a58d298a8a6d9454c5c64bec5e6

Aliases

arxiv: 2004.02342 · arxiv_version: 2004.02342v1 · doi: 10.48550/arxiv.2004.02342 · pith_short_12: HVDNSQARMKEL · pith_short_16: HVDNSQARMKELM6Q6 · pith_short_8: HVDNSQAR

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/HVDNSQARMKELM6Q6BNNJCHZAIO \
  | 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: 3d46d940116288b67a1e0b5a911f2043bc829a58d298a8a6d9454c5c64bec5e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ce7f9ce63f37c0f99647a9494b7103b03f70c3e20925eda82445c3567482c9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-04-05T22:40:21Z",
    "title_canon_sha256": "3b3832af4be0eb49ff515383bd1bcdc375144727bf107daa8509caefbe3af32c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02342",
    "kind": "arxiv",
    "version": 1
  }
}