Pith Number

pith:7PMGDQ5S

pith:2003:7PMGDQ5STDOWBIQQCUDA74JYBB

not attested not anchored not stored refs pending

Observations of HI Absorbing Gas in Compact Radio Sources at Cosmological Redshifts

C.P. O'Dea, G.B. Taylor, G.K. Miley, H.J.A. Roettgering, I.A.G. Snellen, J.E. Conway, M.N. Bremer, P.D. Barthel, R. Braun, R.C. Vermeulen, R.T. Schilizzi, S.A. Baum, W.H. de Vries, W. Tschager, Y.M. Pihlstroem

arxiv:astro-ph/0304291 v1 · 2003-04-15 · 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{7PMGDQ5STDOWBIQQCUDA74JYBB}

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.

Cited by

1 paper in Pith

Tracing Cold Gas in Absorption Across Cosmic Time with the SKA

Receipt and verification

First computed	2026-07-04T16:36:52.101531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbd861c3b298dd60a21015060ff138085203803260ee735d7f408ccca4b8f991

Aliases

arxiv: astro-ph/0304291 · arxiv_version: astro-ph/0304291v1 · doi: 10.48550/arxiv.astro-ph/0304291 · pith_short_12: 7PMGDQ5STDOW · pith_short_16: 7PMGDQ5STDOWBIQQ · pith_short_8: 7PMGDQ5S

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/7PMGDQ5STDOWBIQQCUDA74JYBB \
  | 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: fbd861c3b298dd60a21015060ff138085203803260ee735d7f408ccca4b8f991

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7161cb7215fd04f35afd8ac800d313775bc4ffc7f5d6bda6d43ddc49c90d6e7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-15T21:06:26Z",
    "title_canon_sha256": "702e33f338f6fcbd5344cb9d91ec716e2b9e024027d9e36f5faac8770d6a3036"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304291",
    "kind": "arxiv",
    "version": 1
  }
}