Pith Number

pith:BXZWQFXZ

pith:2007:BXZWQFXZOJBIJ76P5F3TTIHF7W

not attested not anchored not stored refs pending

Scalar-tensor black holes coupled to Euler-Heisenberg nonlinear electrodynamics

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

arxiv:0708.3203 v1 · 2007-08-23 · 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{BXZWQFXZOJBIJ76P5F3TTIHF7W}

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	2026-05-18T02:16:28.449000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0df36816f9724284ffcfe97739a0e5fdaff45e81909432e7dd001f47ad48a7a8

Aliases

arxiv: 0708.3203 · arxiv_version: 0708.3203v1 · doi: 10.48550/arxiv.0708.3203 · pith_short_12: BXZWQFXZOJBI · pith_short_16: BXZWQFXZOJBIJ76P · pith_short_8: BXZWQFXZ

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/BXZWQFXZOJBIJ76P5F3TTIHF7W \
  | 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: 0df36816f9724284ffcfe97739a0e5fdaff45e81909432e7dd001f47ad48a7a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d979364ad99052686356eb496c5d82bd6325f615527d33803c3a40492a76b90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-08-23T16:39:30Z",
    "title_canon_sha256": "f7031bf836703cb645142aaf51daf37b3cba32170d9ea591942286d3121c0d62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.3203",
    "kind": "arxiv",
    "version": 1
  }
}