Pith Number

pith:SEURGSR2

pith:2001:SEURGSR2R4AV7G6LJPK5RPPTMK

not attested not anchored not stored refs pending

Dark energy and the angular size - redshift diagram for milliarcsecond radio sources

J. A. S. Lima (UFRN-Brazil), J. S. Alcaniz (UFRN-Brazil)

arxiv:astro-ph/0109047 v3 · 2001-09-04 · 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{SEURGSR2R4AV7G6LJPK5RPPTMK}

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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.

Cited by

1 paper in Pith

Dark energy and cosmic acceleration

Receipt and verification

First computed	2026-07-04T16:24:04.011218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9129134a3a8f015f9bcb4bd5d8bdf36292eb24a2e9e967331fc7c1cd39632104

Aliases

arxiv: astro-ph/0109047 · arxiv_version: astro-ph/0109047v3 · doi: 10.48550/arxiv.astro-ph/0109047 · pith_short_12: SEURGSR2R4AV · pith_short_16: SEURGSR2R4AV7G6L · pith_short_8: SEURGSR2

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/SEURGSR2R4AV7G6LJPK5RPPTMK \
  | 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: 9129134a3a8f015f9bcb4bd5d8bdf36292eb24a2e9e967331fc7c1cd39632104

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a334b8421c9046ee8316a95c867fcbe8631fb7300b01a18648a933cfebebb79",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-04T15:16:19Z",
    "title_canon_sha256": "a44b8b63ccd5aa1134b1d0e86a4e6b58114efa3be23b9b22ccfa0d165cdcea92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109047",
    "kind": "arxiv",
    "version": 3
  }
}