Pith Number

pith:7ACZM2C3

pith:2009:7ACZM2C3NUPCPUP4TZZMEGX2MS

not attested not anchored not stored refs pending

Swift Observations of Hard X-ray Emitting White Dwarfs in Symbiotic Stars

C. B. Markwardt, D. N. Burrows, G. J. M. Luna, J. A. Kennea, J. L. Sokoloski, J. Tueller, K. Mukai

arxiv:0907.0764 v1 · 2009-07-04 · 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{7ACZM2C3NUPCPUP4TZZMEGX2MS}

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	2026-07-04T17:23:31.853563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f80596685b6d1e27d1fc9e72c21afa64bf1a985e56a43f57bbc997706eb76c56

Aliases

arxiv: 0907.0764 · arxiv_version: 0907.0764v1 · doi: 10.48550/arxiv.0907.0764 · pith_short_12: 7ACZM2C3NUPC · pith_short_16: 7ACZM2C3NUPCPUP4 · pith_short_8: 7ACZM2C3

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/7ACZM2C3NUPCPUP4TZZMEGX2MS \
  | 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: f80596685b6d1e27d1fc9e72c21afa64bf1a985e56a43f57bbc997706eb76c56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d11ac52204bd4903fafe255a478e670d6a059a4d84a52fc36c873cc6025e6d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-04T14:21:42Z",
    "title_canon_sha256": "e5a503b1ad3d60262e394d1c45af69dfb836d95139ef40b8ad7e3d9af57edabb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0764",
    "kind": "arxiv",
    "version": 1
  }
}