Pith Number

pith:2XOZMH7E

pith:2018:2XOZMH7E4XK42EL2XD7CO472EM

not attested not anchored not stored refs pending

Quantum field theory with indefinite causal structure

Ding Jia

arxiv:1805.08859 v1 · 2018-05-22 · 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{2XOZMH7E4XK42EL2XD7CO472EM}

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	2026-05-18T00:15:09.265517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5dd961fe4e5d5cd117ab8fe2773fa233b87759810ee57629535425246fceef6

Aliases

arxiv: 1805.08859 · arxiv_version: 1805.08859v1 · doi: 10.48550/arxiv.1805.08859 · pith_short_12: 2XOZMH7E4XK4 · pith_short_16: 2XOZMH7E4XK42EL2 · pith_short_8: 2XOZMH7E

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/2XOZMH7E4XK42EL2XD7CO472EM \
  | 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: d5dd961fe4e5d5cd117ab8fe2773fa233b87759810ee57629535425246fceef6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0a8e3c8a28b26585b06c7a29b03ccb5aef23e9105e878f1d64143ece5d2d632",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-22T20:46:48Z",
    "title_canon_sha256": "a1159df2a230d311661cd413f326ee0d2f9da2e4ed8e876ee2e6c1487153d755"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08859",
    "kind": "arxiv",
    "version": 1
  }
}