Pith Number

pith:6BYOXJUK

pith:2015:6BYOXJUKEFUHMZC3SH6GZWIY4W

not attested not anchored not stored refs pending

Can one make a laser out of cardboard?

Krzysztof Burdzy, Tvrtko Tadi\'c

arxiv:1507.00961 v2 · 2015-07-03 · math.PR · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BYOXJUKEFUHMZC3SH6GZWIY4W}

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	2026-05-18T00:27:03.168471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f070eba68a216876645b91fc6cd918e5983eeaee2b1437ba8469e63fc0ef279b

Aliases

arxiv: 1507.00961 · arxiv_version: 1507.00961v2 · doi: 10.48550/arxiv.1507.00961 · pith_short_12: 6BYOXJUKEFUH · pith_short_16: 6BYOXJUKEFUHMZC3 · pith_short_8: 6BYOXJUK

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/6BYOXJUKEFUHMZC3SH6GZWIY4W \
  | 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: f070eba68a216876645b91fc6cd918e5983eeaee2b1437ba8469e63fc0ef279b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf923bf86d2cba2bb54ec3d09d815d939c1968c5f9824b5f6372d39c29abf1b8",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2015-07-03T16:09:41Z",
    "title_canon_sha256": "bff467cdc78f889e1a8868b86655dfa5bdb935485d114ae3957fd53184f4d0f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00961",
    "kind": "arxiv",
    "version": 2
  }
}