Pith Number

pith:Q7XAS5NM

pith:2014:Q7XAS5NMDKVFLALPXH4NEOUWEP

not attested not anchored not stored refs pending

Absorption of planar massless scalar waves by Bardeen regular black holes

Caio F. B. Macedo, Lu\'is C. B. Crispino

arxiv:1408.1779 v2 · 2014-08-08 · 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{Q7XAS5NMDKVFLALPXH4NEOUWEP}

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	2026-05-18T02:43:10.547343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87ee0975ac1aaa55816fb9f8d23a9623ec1b05a95fde8167f5a982da9ea048df

Aliases

arxiv: 1408.1779 · arxiv_version: 1408.1779v2 · doi: 10.48550/arxiv.1408.1779 · pith_short_12: Q7XAS5NMDKVF · pith_short_16: Q7XAS5NMDKVFLALP · pith_short_8: Q7XAS5NM

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/Q7XAS5NMDKVFLALPXH4NEOUWEP \
  | 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: 87ee0975ac1aaa55816fb9f8d23a9623ec1b05a95fde8167f5a982da9ea048df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9e14747eb367d176fab4182df628c1ed018e5baf5db1ffed9ad82cf547daa8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-08T08:05:02Z",
    "title_canon_sha256": "8ec575f2d240ce82748ceabca7bc4e79da38b0a4f5da418ca329ed01d2614d3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1779",
    "kind": "arxiv",
    "version": 2
  }
}