Pith Number

pith:WEQFJ5ZH

pith:2016:WEQFJ5ZHLK6YSPNI6SRUDWVEMM

not attested not anchored not stored refs pending

A Metaphysical Reflection on the Notion of Background in Modern Spacetime Physics

Antonio Vassallo

arxiv:1602.06254 v1 · 2016-02-19 · physics.hist-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{WEQFJ5ZHLK6YSPNI6SRUDWVEMM}

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	2026-05-18T01:20:18.282683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b12054f7275abd893da8f4a341daa463397def513d1f10750122d13b85e2ac93

Aliases

arxiv: 1602.06254 · arxiv_version: 1602.06254v1 · doi: 10.48550/arxiv.1602.06254 · pith_short_12: WEQFJ5ZHLK6Y · pith_short_16: WEQFJ5ZHLK6YSPNI · pith_short_8: WEQFJ5ZH

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/WEQFJ5ZHLK6YSPNI6SRUDWVEMM \
  | 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: b12054f7275abd893da8f4a341daa463397def513d1f10750122d13b85e2ac93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2cb0cd8b7443bb1b4cb1a9e3e37eaae96a934658a4c50f2af0cfbb01a0f30f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2016-02-19T19:05:29Z",
    "title_canon_sha256": "d9bf7b3f1998738015427414e697641bf03a66c93620345d3ffc3677390d7702"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06254",
    "kind": "arxiv",
    "version": 1
  }
}