pith. sign in
Pith Number

pith:ZXH5P35A

pith:2008:ZXH5P35ANK2SFEQXZQ4NK6AXSQ
not attested not anchored not stored refs pending

Revealing the High-Redshift Star Formation Rate with Gamma-Ray Bursts

Andrew M. Hopkins (University of Sydney), Hasan Yuksel, John F. Beacom (Ohio State University), Matthew D. Kistler

arxiv:0804.4008 v2 · 2008-04-25 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ZXH5P35ANK2SFEQXZQ4NK6AXSQ}

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

4 papers in Pith

Receipt and verification
First computed 2026-05-18T04:29:33.705505Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

cdcfd7efa06ab5229217cc38d578179411ef9fbfe21ad42b5c0df6e5d3e150d2

Aliases

arxiv: 0804.4008 · arxiv_version: 0804.4008v2 · doi: 10.48550/arxiv.0804.4008 · pith_short_12: ZXH5P35ANK2S · pith_short_16: ZXH5P35ANK2SFEQX · pith_short_8: ZXH5P35A
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZXH5P35ANK2SFEQXZQ4NK6AXSQ \
  | 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: cdcfd7efa06ab5229217cc38d578179411ef9fbfe21ad42b5c0df6e5d3e150d2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "9f6218df0678a944e3a502c02c08cd4c2200d32e815b941e356b7e000f79e655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-25T17:55:30Z",
    "title_canon_sha256": "35952420eba7979a02305dc4bcb2ce0ae749925e2090832cf91a04f379df0bcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4008",
    "kind": "arxiv",
    "version": 2
  }
}