Pith Number

pith:JD5D7CNP

pith:2019:JD5D7CNP3EJE6QCFFMSU4WKBWU

not attested not anchored not stored refs pending

Consistency of the Infrared Variability of Sgr A* over 22 years

A. C. Mangian, A. Dehghanfar, A. Hees, A. K. Gautam, A. M. Ghez, B. N. Sitarski, E. E. Becklin, E. Gallego-Cano, G. Witzel, J. Lu, K. Matthews, M. R. Morris, M. W. Hosek Jr, R. Sch\"odel, S. Jia, T. Do, Zhuo Chen

arxiv:1908.08066 v1 · 2019-08-21 · astro-ph.GA · 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{JD5D7CNP3EJE6QCFFMSU4WKBWU}

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	2026-07-05T00:06:54.807307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48fa3f89afd9124f40452b254e5941b50f0abdef90091e9115dfc241a7e77b83

Aliases

arxiv: 1908.08066 · arxiv_version: 1908.08066v1 · doi: 10.48550/arxiv.1908.08066 · pith_short_12: JD5D7CNP3EJE · pith_short_16: JD5D7CNP3EJE6QCF · pith_short_8: JD5D7CNP

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/JD5D7CNP3EJE6QCFFMSU4WKBWU \
  | 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: 48fa3f89afd9124f40452b254e5941b50f0abdef90091e9115dfc241a7e77b83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "158cd4ca95cf841a17e9c5b7a1553834f6565d731ad98a5ee83dddfca51b4a3d",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-21T18:00:29Z",
    "title_canon_sha256": "988a1273b83035cbc363a1792c9d394e8435f5f396a5dbdcf5ed7585e7ddb03a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08066",
    "kind": "arxiv",
    "version": 1
  }
}