Pith Number

pith:PM5JNEYH

pith:2008:PM5JNEYHIFQ6SSCZQRJQCVKT7C

not attested not anchored not stored refs pending

The Star Formation History of the Universe as Revealed by Deep Radio Observations

(2) University of Southampton, 3), (3) IoA, (4) Steward Observatory, (5) Mullard Space Science Laboratory, (6) University of Sydney, (7) SALT), A. Hopkins (6), A. Zoghbi (2, D. Moss (2), G. Rieke (4), I. McHardy (2), M. Page (5), N. Loaring (7) ((1) Spitzer Science Center, N. Seymour (1), T. Dwelly (2), University of Cambridge

arxiv:0802.4105 v1 · 2008-02-27 · 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{PM5JNEYHIFQ6SSCZQRJQCVKT7C}

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	2026-07-04T17:09:36.765928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3a9693074161e948598453015553f8b984d21bcd8977a1dbcd1b4edc8310ca

Aliases

arxiv: 0802.4105 · arxiv_version: 0802.4105v1 · doi: 10.48550/arxiv.0802.4105 · pith_short_12: PM5JNEYHIFQ6 · pith_short_16: PM5JNEYHIFQ6SSCZ · pith_short_8: PM5JNEYH

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/PM5JNEYHIFQ6SSCZQRJQCVKT7C \
  | 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: 7b3a9693074161e948598453015553f8b984d21bcd8977a1dbcd1b4edc8310ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c30caf9d0567d1e5f2562e376b0a2e39fc38b757363f0616f394a9a70d9977c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-27T23:19:40Z",
    "title_canon_sha256": "8cc07f305ada1db2a6495d33d393b7e2d2f848db712f80ef3afd021b2dcdd6a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.4105",
    "kind": "arxiv",
    "version": 1
  }
}