Pith Number

pith:BBE36HLS

pith:2009:BBE36HLSKB2KCMGDHANO4BCXNE

not attested not anchored not stored refs pending

Chandra Observations of WR147 Reveal a Double X-ray Source

Sangwook Park, Svetozar A. Zhekov

arxiv:0912.3554 v1 · 2009-12-17 · astro-ph.HE · 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{BBE36HLSKB2KCMGDHANO4BCXNE}

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	2026-05-18T02:10:15.797711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0849bf1d725074a130c3381aee0457692fadd58776be4e74042499fd7f1a570e

Aliases

arxiv: 0912.3554 · arxiv_version: 0912.3554v1 · doi: 10.48550/arxiv.0912.3554 · pith_short_12: BBE36HLSKB2K · pith_short_16: BBE36HLSKB2KCMGD · pith_short_8: BBE36HLS

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/BBE36HLSKB2KCMGDHANO4BCXNE \
  | 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: 0849bf1d725074a130c3381aee0457692fadd58776be4e74042499fd7f1a570e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec70389aa4dbe2b64e2d1b2ef54ebb3a31d35058d656d753996762a1bb910745",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-17T23:07:52Z",
    "title_canon_sha256": "9d334541ba6b6022017dcccc48abc8e645ba930a040567b8066f58dc4c91e627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3554",
    "kind": "arxiv",
    "version": 1
  }
}