Pith Number

pith:HTPY3ZFB

pith:2013:HTPY3ZFBD3OSA34KC4QFJLFODE

not attested not anchored not stored refs pending

Cosmological post-Newtonian equations from nonlinear perturbation theory

Hyerim Noh, Jai-chan Hwang

arxiv:1307.6270 v1 · 2013-07-24 · astro-ph.CO · 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{HTPY3ZFBD3OSA34KC4QFJLFODE}

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	2026-05-18T01:48:40.853505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cdf8de4a11edd206f8a172054acae19179098be2738f22fdef2d6f279a4a09d

Aliases

arxiv: 1307.6270 · arxiv_version: 1307.6270v1 · doi: 10.48550/arxiv.1307.6270 · pith_short_12: HTPY3ZFBD3OS · pith_short_16: HTPY3ZFBD3OSA34K · pith_short_8: HTPY3ZFB

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/HTPY3ZFBD3OSA34KC4QFJLFODE \
  | 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: 3cdf8de4a11edd206f8a172054acae19179098be2738f22fdef2d6f279a4a09d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8b681fdbe732b03af26da887c888a4fbf1cdb1346489f3d85228d260239dc8f",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-24T00:03:46Z",
    "title_canon_sha256": "36b87d5fb15125545d6d929a0d19bb742ad480eb1ff1cbbc0756315d60046f71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6270",
    "kind": "arxiv",
    "version": 1
  }
}