Pith Number

pith:YYORKZAB

pith:2011:YYORKZABCBIOO7BKMVLVR7EF4C

not attested not anchored not stored refs pending

Constraining the Flaring Region of Sagittarius A* By 1.3mm VLBI Measurements

Feng Gao, Lei Huang, Zhi-Qiang Shen

arxiv:1112.5224 v1 · 2011-12-22 · 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{YYORKZABCBIOO7BKMVLVR7EF4C}

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	2026-05-18T01:59:03.442418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c61d1564011050e77c2a655758fc85e0a66675871a4e285187197f793bc01ad0

Aliases

arxiv: 1112.5224 · arxiv_version: 1112.5224v1 · doi: 10.48550/arxiv.1112.5224 · pith_short_12: YYORKZABCBIO · pith_short_16: YYORKZABCBIOO7BK · pith_short_8: YYORKZAB

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/YYORKZABCBIOO7BKMVLVR7EF4C \
  | 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: c61d1564011050e77c2a655758fc85e0a66675871a4e285187197f793bc01ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d18f8c1e3439e9aae4d3aca7abad48e425838d218268cf4365981097525489fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-12-22T02:50:09Z",
    "title_canon_sha256": "4947bc99661731cf677ee6e016964e1d96c96a90bd0fb7b3106080dcf7225726"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5224",
    "kind": "arxiv",
    "version": 1
  }
}