Pith Number

pith:5HZSQBC2

pith:2020:5HZSQBC2MEAZSPQAGWYWGTJ23N

not attested not anchored not stored refs pending

Analytic expression of perturbations of Schwarzschild spacetime via Homotopy Analysis Method

Gihyuk Cho

arxiv:2008.12526 v1 · 2020-08-28 · 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{5HZSQBC2MEAZSPQAGWYWGTJ23N}

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	2026-07-05T01:31:16.113731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9f328045a6101993e0035b1634d3adb6b9e064ebd2d3f3a820eb1ee5322f254

Aliases

arxiv: 2008.12526 · arxiv_version: 2008.12526v1 · doi: 10.48550/arxiv.2008.12526 · pith_short_12: 5HZSQBC2MEAZ · pith_short_16: 5HZSQBC2MEAZSPQA · pith_short_8: 5HZSQBC2

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/5HZSQBC2MEAZSPQAGWYWGTJ23N \
  | 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: e9f328045a6101993e0035b1634d3adb6b9e064ebd2d3f3a820eb1ee5322f254

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34df665f4fbc7c1d4aa6080b39d7c4c83125278668ccd6bd4ab595da0432dd5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-28T07:41:33Z",
    "title_canon_sha256": "382720d6361e43c40a9d4be9bdf0684ac682b450138a1946cc64c52f76936c1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12526",
    "kind": "arxiv",
    "version": 1
  }
}