Pith Number

pith:XOGO3K5Z

pith:2014:XOGO3K5ZXTDIBQFHU4GV7JYNUG

not attested not anchored not stored refs pending

First order gravity on the light front

Sergei Alexandrov, Simone Speziale

arxiv:1412.6057 v2 · 2014-12-18 · 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{XOGO3K5ZXTDIBQFHU4GV7JYNUG}

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

An algebra of proper observables at null infinity: Dirac brackets, Memory and Goldstone probes

Receipt and verification

First computed	2026-05-18T02:20:30.369480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb8cedabb9bcc680c0a7a70d5fa70da180c84ec3851e00da89f678e6952d7b4e

Aliases

arxiv: 1412.6057 · arxiv_version: 1412.6057v2 · doi: 10.48550/arxiv.1412.6057 · pith_short_12: XOGO3K5ZXTDI · pith_short_16: XOGO3K5ZXTDIBQFH · pith_short_8: XOGO3K5Z

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/XOGO3K5ZXTDIBQFHU4GV7JYNUG \
  | 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: bb8cedabb9bcc680c0a7a70d5fa70da180c84ec3851e00da89f678e6952d7b4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a73b2ebef9c3b3b7a21863325a244c526b6a6aa4615740e59bf7591fec3c87a1",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-12-18T20:33:10Z",
    "title_canon_sha256": "a533ce17fe3d9642621b96363858ab3c4dc4ce1a64cab5897a3d7b017032fcdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6057",
    "kind": "arxiv",
    "version": 2
  }
}