Pith Number

pith:QPRHUW7L

pith:2001:QPRHUW7L6Y7AYFHWWOFZ6K55RO

not attested not anchored not stored refs pending

Chandra X-ray Spectroscopic Imaging of Sgr A* and the Central Parsec of the Galaxy

(2) Penn State Univ., (3) UCLA, 4), (4) Purdue Univ., (5) JPL), E. D. Feigelson (2), F. K. Baganoff (1), G. P. Garmire (2), G. R. Ricker (1), J. P. Doty (1), L. K. Townsley (2) ((1) MIT, M. Morris (3), M. W. Bautz (1), S. H. Pravdo (5), W. Cui (1, W. N. Brandt (2), Y. Maeda (2)

arxiv:astro-ph/0102151 v1 · 2001-02-08 · 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{QPRHUW7L6Y7AYFHWWOFZ6K55RO}

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.

Cited by

3 papers in Pith

Introduction to multi-messenger astronomy

Detection of polarized Fermi-bubble synchrotron and dust emission

Nested Fermi and eROSITA bubbles require very similar $\sim10^{56}$ erg collimated Galactic-center outbursts; their asymmetry indicates an eastern density gradient

Receipt and verification

First computed	2026-05-18T04:23:01.396383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e27a5bebf63e0c14f6b38b9f2bbd8bb5890526294e37628e9ec2bcc3154486

Aliases

arxiv: astro-ph/0102151 · arxiv_version: astro-ph/0102151v1 · doi: 10.48550/arxiv.astro-ph/0102151 · pith_short_12: QPRHUW7L6Y7A · pith_short_16: QPRHUW7L6Y7AYFHW · pith_short_8: QPRHUW7L

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/QPRHUW7L6Y7AYFHWWOFZ6K55RO \
  | 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: 83e27a5bebf63e0c14f6b38b9f2bbd8bb5890526294e37628e9ec2bcc3154486

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12812e2c92bf7614ef86c0928fda8786d32b6c685c170118f3237e418ee54a9d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-08T22:06:36Z",
    "title_canon_sha256": "3fb2ae80d96f879f16e9d7a1139116892466531db025b933acc5f43368070697"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102151",
    "kind": "arxiv",
    "version": 1
  }
}