Pith Number

pith:H6SIEHVI

pith:2014:H6SIEHVIPMPE4XK4MFPIVBFOEE

not attested not anchored not stored refs pending

Black holes and gravitational waves in three-dimensional f(R) gravity

Dao-jun Liu, Hongsheng Zhang, Xin-zhou Li

arxiv:1405.7530 v2 · 2014-05-29 · physics.gen-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{H6SIEHVIPMPE4XK4MFPIVBFOEE}

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	2026-05-18T02:30:54.951384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fa4821ea87b1e4e5d5c615e8a84ae21288bcf0ed6c2d9cfe4b48ec25f546652

Aliases

arxiv: 1405.7530 · arxiv_version: 1405.7530v2 · doi: 10.48550/arxiv.1405.7530 · pith_short_12: H6SIEHVIPMPE · pith_short_16: H6SIEHVIPMPE4XK4 · pith_short_8: H6SIEHVI

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/H6SIEHVIPMPE4XK4MFPIVBFOEE \
  | 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: 3fa4821ea87b1e4e5d5c615e8a84ae21288bcf0ed6c2d9cfe4b48ec25f546652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4530fec14d9fdf0113250bb03023827e8be99877917e6b1a51685d3ceae1dc7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2014-05-29T11:46:25Z",
    "title_canon_sha256": "fbf793ecd48de7d9b75d0690e666023cc83af054ab8918eff8d5572059f840d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7530",
    "kind": "arxiv",
    "version": 2
  }
}