Pith Number

pith:XHPE2FBG

pith:2006:XHPE2FBGLM6JZBFYFOOXIP4CNO

not attested not anchored not stored refs pending

The Deep Chandra Survey of the Groth Strip - II. optical identification of the X-ray sources

(2) UCO/Lick, (3) Victoria, (4) Caltech, (5) Florida, (6) CfA, (7) Steward Observatory, (8) Berkeley), A. Georgakakis (1), A. L. Coil (7), C. C. Steidel (4), E. S. Laird (2), J. A. Newman (8) ((1) Imperial College, K . Nandra (1), M. C. Cooper (8), M. Davis (8), P. Barmby (6), S. Gwyn (3), S. M. Faber (2), V. L. Sarajedini (5)

arxiv:astro-ph/0606139 v1 · 2006-06-07 · 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{XHPE2FBGLM6JZBFYFOOXIP4CNO}

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	2026-07-04T16:58:50.270688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9de4d14265b3c9c84b82b9d743f826bb1b44a38a69422dc18b42dd8a2f866a8

Aliases

arxiv: astro-ph/0606139 · arxiv_version: astro-ph/0606139v1 · doi: 10.48550/arxiv.astro-ph/0606139 · pith_short_12: XHPE2FBGLM6J · pith_short_16: XHPE2FBGLM6JZBFY · pith_short_8: XHPE2FBG

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/XHPE2FBGLM6JZBFYFOOXIP4CNO \
  | 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: b9de4d14265b3c9c84b82b9d743f826bb1b44a38a69422dc18b42dd8a2f866a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12487752cf36d3096f4a1637ba651024e73933d556fe49638d344326ea72075c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-07T05:58:21Z",
    "title_canon_sha256": "40be18ae2399a2484bdd101af02462519866f1753af6bd9b9dbfe0305b0d39a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606139",
    "kind": "arxiv",
    "version": 1
  }
}