Pith Number

pith:PMPHQC2Z

pith:2008:PMPHQC2ZKWIOLCPUMEVZNUVYSG

not attested not anchored not stored refs pending

Coordinated multi-wavelength observations of Sgr A*

A. Eckart, A. Zensus, C. Straubmeier, C. Thum, D. Downes, D. Kunneriath, F. K. Baganoff, F. Najarro, G. Witzel, H. Wiesemeyer, J. Mauerhan, J. Moultaka, K. Muzic, K. Schuster, L. Meyer, L. Sjouwerman, M. Dovciak, M. Krips, M. Morris, M. Zamaninasab, R. Schoedel, R-S. Lu, S. Koenig, S. Markoff, S. Vogel, T. Bertram, T. Krichbaum, V. Karas, W. J. Duschl

arxiv:0810.0168 v1 · 2008-10-01 · astro-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{PMPHQC2ZKWIOLCPUMEVZNUVYSG}

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	2026-05-18T02:35:14.582714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b1e780b595590e589f4612b96d2b8919e6f92be014f36e8507cbc6962cbbe1e

Aliases

arxiv: 0810.0168 · arxiv_version: 0810.0168v1 · doi: 10.48550/arxiv.0810.0168 · pith_short_12: PMPHQC2ZKWIO · pith_short_16: PMPHQC2ZKWIOLCPU · pith_short_8: PMPHQC2Z

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/PMPHQC2ZKWIOLCPUMEVZNUVYSG \
  | 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: 7b1e780b595590e589f4612b96d2b8919e6f92be014f36e8507cbc6962cbbe1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cd64235bb131c7ca8e13ee2ce423d80d5fc4ea7ed77f3275d89b0372c76993b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-01T14:22:31Z",
    "title_canon_sha256": "f40ce7767f5f0e23c0452a4bfb9f941bb6e7823cba744c670fc39f04956fddd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.0168",
    "kind": "arxiv",
    "version": 1
  }
}