Pith Number

pith:7F2KAWYC

pith:2017:7F2KAWYCSWA56IEGCOMH4RSWG2

not attested not anchored not stored refs pending

Critique of Barbosa's "P != NP Proof"

Jackson Abascal, Shir Maimon

arxiv:1711.07132 v1 · 2017-11-20 · 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{7F2KAWYCSWA56IEGCOMH4RSWG2}

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	2026-05-18T00:30:12.178417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f974a05b029581df208613987e465636ac4cf7815f23c46d7f3bf80281ffc9af

Aliases

arxiv: 1711.07132 · arxiv_version: 1711.07132v1 · doi: 10.48550/arxiv.1711.07132 · pith_short_12: 7F2KAWYCSWA5 · pith_short_16: 7F2KAWYCSWA56IEG · pith_short_8: 7F2KAWYC

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/7F2KAWYCSWA56IEGCOMH4RSWG2 \
  | 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: f974a05b029581df208613987e465636ac4cf7815f23c46d7f3bf80281ffc9af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0aa7fb4a92adb5a4086c0fa7caf4e1aef72debf35c02512ee89a80a47d8b737",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-11-20T03:51:53Z",
    "title_canon_sha256": "9836e7461c66814bc98688b876f86e78c300829a4bb440a0413ca931e3b9a174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07132",
    "kind": "arxiv",
    "version": 1
  }
}