Pith Number

pith:35HQQGDG

pith:2000:35HQQGDGBIMQL5PPVLADM57HTO

not attested not anchored not stored refs pending

X-ray Source Populations in the Region of the Open Clusters NGC 6633 and IC 4756

(2) Keele University), E. J. Totten (2) ((1) University of Leicester, J. P. Pye (1), K. R. Briggs (1), R. D. Jeffries (2)

arxiv:astro-ph/0007468 v1 · 2000-07-31 · 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{35HQQGDGBIMQL5PPVLADM57HTO}

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	2026-07-04T16:16:58.404663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df4f0818660a1905f5efaac03677e79b93b0f01fa234eccc3f2773f5532102d4

Aliases

arxiv: astro-ph/0007468 · arxiv_version: astro-ph/0007468v1 · doi: 10.48550/arxiv.astro-ph/0007468 · pith_short_12: 35HQQGDGBIMQ · pith_short_16: 35HQQGDGBIMQL5PP · pith_short_8: 35HQQGDG

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/35HQQGDGBIMQL5PPVLADM57HTO \
  | 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: df4f0818660a1905f5efaac03677e79b93b0f01fa234eccc3f2773f5532102d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ffd4a3e20309cc609bc117fd98219f03ea18160d17dd968060dae463b2b9333",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-31T14:33:22Z",
    "title_canon_sha256": "92f27a96d1d01810e842d3ac5ac9211bbe14e169078dc6593e143f03506318f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007468",
    "kind": "arxiv",
    "version": 1
  }
}