Pith Number

pith:DJ3KHRL4

pith:2025:DJ3KHRL47QNDUSRDUPWMJMAI7B

not attested not anchored not stored refs pending

Optical Signatures of Einstein-Euler-Heisenberg AdS/dS Black Holes in the light of Event Horizon Telescope

Khadije Jafarzade, Kourosh Nozari, Sara Saghafi, Zeynab Bazyar

arxiv:2504.09690 v2 · 2025-04-13 · 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{DJ3KHRL47QNDUSRDUPWMJMAI7B}

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.

Cited by

1 paper in Pith

Scattering and Hawking Radiation from Einstein--Euler--Heisenberg--de Sitter Black Holes

Receipt and verification

First computed	2026-07-05T11:53:01.119346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a76a3c57cfc1a3a4a23a3ecc4b008f8515f0ba442bdb4ca2ea8c45bae6103d4

Aliases

arxiv: 2504.09690 · arxiv_version: 2504.09690v2 · doi: 10.48550/arxiv.2504.09690 · pith_short_12: DJ3KHRL47QND · pith_short_16: DJ3KHRL47QNDUSRD · pith_short_8: DJ3KHRL4

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/DJ3KHRL47QNDUSRDUPWMJMAI7B \
  | 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: 1a76a3c57cfc1a3a4a23a3ecc4b008f8515f0ba442bdb4ca2ea8c45bae6103d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15b82ddbbf7234b278c49f05841371ad4dad547c8a4ac6b51b738d0605b143dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-13T18:48:08Z",
    "title_canon_sha256": "0c4fb4a49d04b7216e6b7e4d403662d04fc4f02ddd3a17ed1d85a0f392d62a43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.09690",
    "kind": "arxiv",
    "version": 2
  }
}