Pith Number

pith:3OSKYU2B

pith:2011:3OSKYU2BOVSWDISYAAPQM3D4LI

not attested not anchored not stored refs pending

Three limits to the physical world

Pierre Darriulat

arxiv:1201.0961 v1 · 2011-12-30 · physics.pop-ph · astro-ph.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{3OSKYU2BOVSWDISYAAPQM3D4LI}

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	2026-05-18T04:05:15.380799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dba4ac5341756561a258001f066c7c5a0138275114acbe45be3b94db15ad6e14

Aliases

arxiv: 1201.0961 · arxiv_version: 1201.0961v1 · doi: 10.48550/arxiv.1201.0961 · pith_short_12: 3OSKYU2BOVSW · pith_short_16: 3OSKYU2BOVSWDISY · pith_short_8: 3OSKYU2B

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/3OSKYU2BOVSWDISYAAPQM3D4LI \
  | 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: dba4ac5341756561a258001f066c7c5a0138275114acbe45be3b94db15ad6e14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dc3f58dd499710b0e39bcebd34d1692ffd4c0b675b3a993afa28ebe9b47bb97",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2011-12-30T08:33:26Z",
    "title_canon_sha256": "5f220abcca78b5ee0c825ed7308ab303051d38261cefb230da9512e48c9da2d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0961",
    "kind": "arxiv",
    "version": 1
  }
}