Pith Number

pith:NMLUJLN4

pith:2022:NMLUJLN4UIL55S2T2NTMZE2Z6L

not attested not anchored not stored refs pending

Shaving the Hair of Black Hole with Sagittarius A$^*$ from Event Horizon Telescope

Deng Wang

arxiv:2205.08026 v1 · 2022-05-16 · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NMLUJLN4UIL55S2T2NTMZE2Z6L}

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	2026-07-05T04:23:58.277251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b1744adbca217decb53d366cc9359f2cec2ecf2c3716c3304843cc5823a73e7

Aliases

arxiv: 2205.08026 · arxiv_version: 2205.08026v1 · doi: 10.48550/arxiv.2205.08026 · pith_short_12: NMLUJLN4UIL5 · pith_short_16: NMLUJLN4UIL55S2T · pith_short_8: NMLUJLN4

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/NMLUJLN4UIL55S2T2NTMZE2Z6L \
  | 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: 6b1744adbca217decb53d366cc9359f2cec2ecf2c3716c3304843cc5823a73e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24cb658aab4243425df456a55b0862bb1d3cf357afdbf5944a5e48fcce35249c",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-05-16T23:56:30Z",
    "title_canon_sha256": "c80b35ce08707320c3e18892f70467a98635d585adf244aa08de3f8ace1b34c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.08026",
    "kind": "arxiv",
    "version": 1
  }
}