Pith Number

pith:PYTJPZSZ

pith:2013:PYTJPZSZT2AI5YMKDQ5WYHTGFR

not attested not anchored not stored refs pending

On the theory of composition in physics

Lucien Hardy

arxiv:1303.1537 v2 · 2013-03-06 · quant-ph · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYTJPZSZT2AI5YMKDQ5WYHTGFR}

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.

Cited by

1 paper in Pith

String Diagrams for Quantum Foundations, Computing and Natural Language Processing

Receipt and verification

First computed	2026-05-18T03:30:27.425250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e2697e6599e808ee18a1c3b6c1e662c74e2a40b643ab1a5fbf8ce7fdb5be9b4

Aliases

arxiv: 1303.1537 · arxiv_version: 1303.1537v2 · doi: 10.48550/arxiv.1303.1537 · pith_short_12: PYTJPZSZT2AI · pith_short_16: PYTJPZSZT2AI5YMK · pith_short_8: PYTJPZSZ

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/PYTJPZSZT2AI5YMKDQ5WYHTGFR \
  | 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: 7e2697e6599e808ee18a1c3b6c1e662c74e2a40b643ab1a5fbf8ce7fdb5be9b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c822ca84c3b6b6fc5d9d5e9c250888a2db88f7f57d8f1e5f06a31e9d28b8a8c",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-06T21:00:17Z",
    "title_canon_sha256": "963401d13a18225a1d21bd78631d5f0b89d25b0a384fc077df210adc354132e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1537",
    "kind": "arxiv",
    "version": 2
  }
}