Pith Number

pith:PT4MBDRF

pith:2007:PT4MBDRF6F2MYTIWTQNYAWX56B

not attested not anchored not stored refs pending

Phases of 4D Scalar-tensor black holes coupled to Born-Infeld nonlinear electrodynamics

Ivan Zh. Stefanov, Michail D. Todorov, Stoytcho S. Yazadjiev

arxiv:0708.4141 v3 · 2007-08-30 · 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{PT4MBDRF6F2MYTIWTQNYAWX56B}

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	2026-07-04T15:35:08.955975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf8c08e25f174cc4d169c1b805afdf05991d350c2e275b5ee46e32dcc2fe0de

Aliases

arxiv: 0708.4141 · arxiv_version: 0708.4141v3 · doi: 10.48550/arxiv.0708.4141 · pith_short_12: PT4MBDRF6F2M · pith_short_16: PT4MBDRF6F2MYTIW · pith_short_8: PT4MBDRF

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/PT4MBDRF6F2MYTIWTQNYAWX56B \
  | 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: 7cf8c08e25f174cc4d169c1b805afdf05991d350c2e275b5ee46e32dcc2fe0de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03d608e7d55aebe09484be1e5949ae1adb4db7f32f7cd393c80a8b465a46475",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-08-30T12:39:14Z",
    "title_canon_sha256": "1c0ef9fedfcb2c778b99f59a123ed0712b4650edc41f8f1952edbfb14db6080a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.4141",
    "kind": "arxiv",
    "version": 3
  }
}