Pith Number

pith:S35FK4DM

pith:2009:S35FK4DMTMWPPXWQM7E2SV53O4

not attested not anchored not stored refs pending

The variability of Sagittarius A* at 3 millimeter

Atsushi Miyazaki, Juan Li, Lei Huang, Makoto Miyoshi, Masato Tsuboi, R.J. Sault, Takahiro Tsutsumi, Zhi-Qiang Shen

arxiv:0905.2654 v1 · 2009-05-16 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S35FK4DMTMWPPXWQM7E2SV53O4}

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	2026-07-04T15:46:29.416965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96fa55706c9b2cf7ded067c9a957bb7701224484febc9e73ef2e23d7bfcd2084

Aliases

arxiv: 0905.2654 · arxiv_version: 0905.2654v1 · doi: 10.48550/arxiv.0905.2654 · pith_short_12: S35FK4DMTMWP · pith_short_16: S35FK4DMTMWPPXWQ · pith_short_8: S35FK4DM

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/S35FK4DMTMWPPXWQM7E2SV53O4 \
  | 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: 96fa55706c9b2cf7ded067c9a957bb7701224484febc9e73ef2e23d7bfcd2084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5461f89a6589afbc9271f7f49c5f8fa76042170364a06b8756f3341ca53b2f97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-16T03:42:26Z",
    "title_canon_sha256": "7f1f650f5a133186d7cb74b579e3df990239a8c2c7344d0c01410a4b78b8a511"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2654",
    "kind": "arxiv",
    "version": 1
  }
}