Pith Number

pith:I7C4AJLY

pith:2006:I7C4AJLYM7IFHTIK6QWI4QMLVX

not attested not anchored not stored refs pending

Accurate photometry of extended spherically symmetric sources

(2) Astronomical Institute, (3) Department of Physics & Astronomy, Germany, Goettingen, M. Gieles (2), P. Anders (1), R. de Grijs (3) ((1) Institut fuer Astrophysik, Sheffield, The Netherlands, UK), Utrecht

arxiv:astro-ph/0602077 v1 · 2006-02-03 · 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{I7C4AJLYM7IFHTIK6QWI4QMLVX}

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	2026-05-18T04:03:44.256074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47c5c0257867d053cd0af42c8e418baddecf3412d47de399605eed0e71b29ddc

Aliases

arxiv: astro-ph/0602077 · arxiv_version: astro-ph/0602077v1 · doi: 10.48550/arxiv.astro-ph/0602077 · pith_short_12: I7C4AJLYM7IF · pith_short_16: I7C4AJLYM7IFHTIK · pith_short_8: I7C4AJLY

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/I7C4AJLYM7IFHTIK6QWI4QMLVX \
  | 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: 47c5c0257867d053cd0af42c8e418baddecf3412d47de399605eed0e71b29ddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7533e48ee7cc4a731c343e7b1cbccdea58e8669d7cdce744cbf9e40b1e0094e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-03T14:00:31Z",
    "title_canon_sha256": "f00bce2da758cafbbee400548109a0d7490043cc93382d9a1eec4021ee6e3a71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602077",
    "kind": "arxiv",
    "version": 1
  }
}