Pith Number

pith:JI6EAP2A

pith:2018:JI6EAP2AMUYGH3EKBXEQCOWBDG

not attested not anchored not stored refs pending

Finding a boundary between valid and invalid regions of the input space

Bogdan Marculescu, Robert Feldt

arxiv:1810.06720 v1 · 2018-10-15 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JI6EAP2AMUYGH3EKBXEQCOWBDG}

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	2026-05-18T00:03:11.788727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a3c403f40653063ec8a0dc9013ac119bed2f6143106e762ced4174841d9c8c2

Aliases

arxiv: 1810.06720 · arxiv_version: 1810.06720v1 · doi: 10.48550/arxiv.1810.06720 · pith_short_12: JI6EAP2AMUYG · pith_short_16: JI6EAP2AMUYGH3EK · pith_short_8: JI6EAP2A

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/JI6EAP2AMUYGH3EKBXEQCOWBDG \
  | 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: 4a3c403f40653063ec8a0dc9013ac119bed2f6143106e762ced4174841d9c8c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c05b2d02d409bfa838804c16add1ff0cc719c0fdb8a1d765a93dbcd8ecc820e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-10-15T21:55:43Z",
    "title_canon_sha256": "9444e48bf43ddc0522adde5aecfe6b550607195b2072cd415be214f0b4927049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06720",
    "kind": "arxiv",
    "version": 1
  }
}