Pith Number

pith:CC6ABL35

pith:2014:CC6ABL352N7GDA2BPTLMDD5Y6I

not attested not anchored not stored refs pending

Schwinger's Quantum Action Principle. I. From Dirac's Formulation through Feynman's Path Integrals to the Schwinger-Keldysh Method

K. A. Milton

arxiv:1402.3762 v1 · 2014-02-16 · physics.hist-ph · quant-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{CC6ABL352N7GDA2BPTLMDD5Y6I}

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	2026-05-18T02:58:55.692926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10bc00af7dd37e6183417cd6c18fb8f22eb1121ef64bf893e5836ad2255b70b9

Aliases

arxiv: 1402.3762 · arxiv_version: 1402.3762v1 · doi: 10.48550/arxiv.1402.3762 · pith_short_12: CC6ABL352N7G · pith_short_16: CC6ABL352N7GDA2B · pith_short_8: CC6ABL35

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/CC6ABL352N7GDA2BPTLMDD5Y6I \
  | 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: 10bc00af7dd37e6183417cd6c18fb8f22eb1121ef64bf893e5836ad2255b70b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29cb08a1bc3b93f4755f132608ee263c713d24a65c43f8fdbf6feab254e4277b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-02-16T06:52:15Z",
    "title_canon_sha256": "d76614826dc89f374cf1fccab1a3e6b4e502873a54f344f8b87a322270d79bee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3762",
    "kind": "arxiv",
    "version": 1
  }
}