Pith Number

pith:DOFQW62H

pith:2003:DOFQW62HA275GE7QB4UWTV256S

not attested not anchored not stored refs pending

XMM-Newton observation of the Chandra Deep Field-South: Statistical treatment of faint source spectra

A. Finoguenov, A. Streblyanska, G. Hasinger, H. Brunner, J. Bergeron, V. Mainieri

arxiv:astro-ph/0309089 v3 · 2003-09-03 · 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{DOFQW62HA275GE7QB4UWTV256S}

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	2026-07-04T16:51:34.731111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b8b0b7b4706bfd313f00f2969d75df4952519757243dfd7e59ddeb99e8c65ef

Aliases

arxiv: astro-ph/0309089 · arxiv_version: astro-ph/0309089v3 · doi: 10.48550/arxiv.astro-ph/0309089 · pith_short_12: DOFQW62HA275 · pith_short_16: DOFQW62HA275GE7Q · pith_short_8: DOFQW62H

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/DOFQW62HA275GE7QB4UWTV256S \
  | 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: 1b8b0b7b4706bfd313f00f2969d75df4952519757243dfd7e59ddeb99e8c65ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "874c210131cf191ae010b2ac69a910b49652e3270c3c2d51163fdcac95c10d02",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-03T09:26:22Z",
    "title_canon_sha256": "bb283cba3cc516223d2cff9d514bcecd05a8e228f531251f39562b3a4ab662e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309089",
    "kind": "arxiv",
    "version": 3
  }
}