Pith Number

pith:O772RTEU

pith:2009:O772RTEUS5XRXFN5X6RF34VXHJ

not attested not anchored not stored refs pending

Soft and Supersoft X-ray Sources in Symbiotic Stars

Chunhua Zhu, Guoliang Lu, Jun Zhang, Zhaojun Wang

arxiv:0907.4143 v1 · 2009-07-23 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O772RTEUS5XRXFN5X6RF34VXHJ}

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	2026-05-18T02:12:54.197847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77ffa8cc94976f1b95bdbfa25df2b73a6acdd028c42b263d8d7abdc358d1ea6e

Aliases

arxiv: 0907.4143 · arxiv_version: 0907.4143v1 · doi: 10.48550/arxiv.0907.4143 · pith_short_12: O772RTEUS5XR · pith_short_16: O772RTEUS5XRXFN5 · pith_short_8: O772RTEU

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/O772RTEUS5XRXFN5X6RF34VXHJ \
  | 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: 77ffa8cc94976f1b95bdbfa25df2b73a6acdd028c42b263d8d7abdc358d1ea6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ad634edb4eb36b9f23d5fb98dfbda650b813bc8e8a72a9f4beef43fbc1e31fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-23T19:06:54Z",
    "title_canon_sha256": "d4de7154a7a94523132cdbe87e60eeef2c9ba95126dfb44aab6ea07353fab236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4143",
    "kind": "arxiv",
    "version": 1
  }
}