Pith Number

pith:GHOBMWWP

pith:2022:GHOBMWWPTTFG5TJSF2F42IJTKT

not attested not anchored not stored refs pending

Universal signatures of singularity-resolving physics in photon rings of black holes and horizonless objects

Aaron Held, Astrid Eichhorn, Philipp-Vincent Johannsen

arxiv:2204.02429 v1 · 2022-04-05 · gr-qc · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHOBMWWPTTFG5TJSF2F42IJTKT}

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

3 papers in Pith

Leading effective field theory corrections to the Kerr metric at all spins

Shadow signatures and energy accumulation in Lorentzian-Euclidean black holes

Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A$^*$

Receipt and verification

First computed	2026-07-05T05:37:05.230043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31dc165acf9cca6ecd322e8bcd213354d9de62af7fb8a7eedb02074fe1a77a05

Aliases

arxiv: 2204.02429 · arxiv_version: 2204.02429v1 · doi: 10.48550/arxiv.2204.02429 · pith_short_12: GHOBMWWPTTFG · pith_short_16: GHOBMWWPTTFG5TJS · pith_short_8: GHOBMWWP

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/GHOBMWWPTTFG5TJSF2F42IJTKT \
  | 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: 31dc165acf9cca6ecd322e8bcd213354d9de62af7fb8a7eedb02074fe1a77a05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a71ad0dfb987797a6c5173e7c6b4cf5cae69d93715f1a9222dfc17a63fe0f89",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-04-05T18:10:49Z",
    "title_canon_sha256": "837ad1f18ad18d7ddb52079dd47ab20b1f22ddd0080a9e487b2a9a1d0909d443"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.02429",
    "kind": "arxiv",
    "version": 1
  }
}