Pith Number

pith:DQUF55T4

pith:2012:DQUF55T4WTTBBE44Y3X6HEJLSJ

not attested not anchored not stored refs pending

Mind Switches in Futurama and Stargate

Lihua Huang, Ron Evans

arxiv:1209.4991 v3 · 2012-09-22 · math.GR · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQUF55T4WTTBBE44Y3X6HEJLSJ}

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	2026-05-18T02:32:39.229962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c285ef67cb4e610939cc6efe3912b9267626c6e765ac3b71398d340272e54c7

Aliases

arxiv: 1209.4991 · arxiv_version: 1209.4991v3 · doi: 10.48550/arxiv.1209.4991 · pith_short_12: DQUF55T4WTTB · pith_short_16: DQUF55T4WTTBBE44 · pith_short_8: DQUF55T4

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/DQUF55T4WTTBBE44Y3X6HEJLSJ \
  | 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: 1c285ef67cb4e610939cc6efe3912b9267626c6e765ac3b71398d340272e54c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6d89f233518a33c427e8ce5686e60f25556408f48089f72d45c82858f0a08e5",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2012-09-22T12:39:16Z",
    "title_canon_sha256": "aaa7fbdb0f26f7020a4833d9f431e4d92df34644cf73b9be6dc2fc1302c5e30e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4991",
    "kind": "arxiv",
    "version": 3
  }
}