Pith Number

pith:4ZVNTYS7

pith:2021:4ZVNTYS77BCCTEAGMKI27SFGTG

not attested not anchored not stored refs pending

Beer Mats make bad Frisbees

Carsten Urbach, Christoph Sch\"urmann, Johann Ostmeyer

arxiv:2106.08238 v2 · 2021-06-15 · physics.pop-ph · hep-ph · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZVNTYS77BCCTEAGMKI27SFGTG}

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	2026-07-05T03:01:36.544459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e66ad9e25ff8442990066291afc8a6999f328b2b9c1fd44bac67de0e319bbb48

Aliases

arxiv: 2106.08238 · arxiv_version: 2106.08238v2 · doi: 10.48550/arxiv.2106.08238 · pith_short_12: 4ZVNTYS77BCC · pith_short_16: 4ZVNTYS77BCCTEAG · pith_short_8: 4ZVNTYS7

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/4ZVNTYS77BCCTEAGMKI27SFGTG \
  | 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: e66ad9e25ff8442990066291afc8a6999f328b2b9c1fd44bac67de0e319bbb48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a030ba8a8339bf4151d6d5a2a6a3b40f91fd9b964de526d66b2e3d2f0b7782c",
    "cross_cats_sorted": [
      "hep-ph",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2021-06-15T15:43:07Z",
    "title_canon_sha256": "65377a1b2ad4abd2b17a91e57a6f85e1daf9896bbbd3517237456e6ae868a96f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.08238",
    "kind": "arxiv",
    "version": 2
  }
}