Pith Number

pith:A7TDHC36

pith:2008:A7TDHC36CLAELTS2HFXALFZBAW

not attested not anchored not stored refs pending

AEGIS-X: The Chandra Deep Survey of the Extended Groth Strip

A. Georgakakis, A. L. Coil, C. J. Conselice, C. N. A. Willmer, D. C. Koo, E. S. Laird, G. G. Fazio, J. A. Aird, K. Nandra, M. Davis, P. Barmby, P. Guhathakurta, S. M. Faber, V. Sarajedini

arxiv:0809.1349 v1 · 2008-09-08 · 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{A7TDHC36CLAELTS2HFXALFZBAW}

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	2026-05-18T02:35:14.923348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07e6338b7e12c045ce5a396e05972105a5d672a5741daf914d9e703e836e0c3a

Aliases

arxiv: 0809.1349 · arxiv_version: 0809.1349v1 · doi: 10.48550/arxiv.0809.1349 · pith_short_12: A7TDHC36CLAE · pith_short_16: A7TDHC36CLAELTS2 · pith_short_8: A7TDHC36

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/A7TDHC36CLAELTS2HFXALFZBAW \
  | 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: 07e6338b7e12c045ce5a396e05972105a5d672a5741daf914d9e703e836e0c3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5097781c50e764a6c4fc734b2d00f3bd8fffac7eda45880428c121467e3b38b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-08T15:10:30Z",
    "title_canon_sha256": "042204dcd75ee2122209d4919f4d4ee0df1ff11affb5c4ed446fea3c907c646b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.1349",
    "kind": "arxiv",
    "version": 1
  }
}