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Pith Number

pith:QQ6BZZRK

pith:2000:QQ6BZZRK6LRYIRZAFZPTR4WLSP
not attested not anchored not stored refs pending

Chandra X-Ray Observatory (CXO):Overview

H. D. Tananbaum, L. P. Van Speybroeck, M. C. Weisskopf, S. L. O'Dell

arxiv:astro-ph/0004127 v1 · 2000-04-10 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{QQ6BZZRK6LRYIRZAFZPTR4WLSP}

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

1 paper in Pith

Receipt and verification
First computed 2026-05-18T01:40:48.056188Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

843c1ce62af2e38447202e5f38f2cb93d33f81310e65f8a1ef462572c07214bd

Aliases

arxiv: astro-ph/0004127 · arxiv_version: astro-ph/0004127v1 · doi: 10.48550/arxiv.astro-ph/0004127 · pith_short_12: QQ6BZZRK6LRY · pith_short_16: QQ6BZZRK6LRYIRZA · pith_short_8: QQ6BZZRK
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/QQ6BZZRK6LRYIRZAFZPTR4WLSP \
  | 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: 843c1ce62af2e38447202e5f38f2cb93d33f81310e65f8a1ef462572c07214bd
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e84d99c111a3101ba84acdd4ca4a81eb5b1a11f0841f451cbdc4056ffc7c1640",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-10T20:51:10Z",
    "title_canon_sha256": "91d90129c9d883ee611e3c8f13211612b37418209bb67144ebdf0fc76167476f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004127",
    "kind": "arxiv",
    "version": 1
  }
}