Pith Number

pith:55I4BNNO

pith:2018:55I4BNNO4D43LTHDCG6G6NER7F

not attested not anchored not stored refs pending

Probing the innermost accretion flow geometry of Sgr A* with Event Horizon Telescope

Avery E. Broderick, Hung-Yi Pu

arxiv:1807.01817 v2 · 2018-07-05 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55I4BNNO4D43LTHDCG6G6NER7F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

Imaging and Polarimetric Signatures of Konoplya-Zhidenko Black Holes with Various Thick Disk

Receipt and verification

First computed	2026-05-18T00:06:28.488006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef51c0b5aee0f9b5cce311bc6f3491f955e37f4e1f777b1f0f6d46ca274ba1b9

Aliases

arxiv: 1807.01817 · arxiv_version: 1807.01817v2 · doi: 10.48550/arxiv.1807.01817 · pith_short_12: 55I4BNNO4D43 · pith_short_16: 55I4BNNO4D43LTHD · pith_short_8: 55I4BNNO

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/55I4BNNO4D43LTHDCG6G6NER7F \
  | 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: ef51c0b5aee0f9b5cce311bc6f3491f955e37f4e1f777b1f0f6d46ca274ba1b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "304615f36077c138c05bae59b5f69c4decaf2c235fe83b17f4423b0ac59a61ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-05T00:22:52Z",
    "title_canon_sha256": "7ba6cd51227fc965c8ddc4dc9772cc039fdea56ed27002cfd4b782880a7b3eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01817",
    "kind": "arxiv",
    "version": 2
  }
}