Pith Number

pith:XP63D4IH

pith:2020:XP63D4IHL4LUEJNW5TGYB7XMYQ

not attested not anchored not stored refs pending

Galilean first-order formulation for the non-relativistic expansion of general relativity

Dennis Hansen, Gerben Oling, Jelle Hartong, Niels A. Obers

arxiv:2012.01518 v2 · 2020-12-02 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XP63D4IHL4LUEJNW5TGYB7XMYQ}

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

2 papers in Pith

Kerroll black holes

Receipt and verification

First computed	2026-07-05T03:18:13.546743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbfdb1f1075f174225b6eccd80feecc40b0cbe58d70e46a6ab2b7332fc095b10

Aliases

arxiv: 2012.01518 · arxiv_version: 2012.01518v2 · doi: 10.48550/arxiv.2012.01518 · pith_short_12: XP63D4IHL4LU · pith_short_16: XP63D4IHL4LUEJNW · pith_short_8: XP63D4IH

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/XP63D4IHL4LUEJNW5TGYB7XMYQ \
  | 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: bbfdb1f1075f174225b6eccd80feecc40b0cbe58d70e46a6ab2b7332fc095b10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fa3e360d7af86709c04c7b073d83964bfc1635768aaaf85bc1ac9e08acc9ed8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2020-12-02T20:46:28Z",
    "title_canon_sha256": "b29738c64fdd0f47fc6dddcc19bdbc8a49a789c12cb622ed9cd4fc804f607b34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.01518",
    "kind": "arxiv",
    "version": 2
  }
}