Pith Number

pith:HSM6AO6Z

pith:2008:HSM6AO6ZNIAV4RPOQ2OT62PCZK

not attested not anchored not stored refs pending

Robust photometric redshift determinations of gamma-ray burst afterglows at z > 2

(2) U. of Leicester, (3) NSSTC), A.J. van der Horst (3) ((1) U. of Amsterdam, K. Wiersema (2), M.H.M. Heemskerk (1), P.A. Curran (1), R.A.M.J. Wijers (1), R.L.C. Starling (2)

arxiv:0809.1559 v1 · 2008-09-09 · 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{HSM6AO6ZNIAV4RPOQ2OT62PCZK}

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	2026-07-04T17:12:39.718222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c99e03bd96a015e45ee869d3f69e2cabc3d0005da758fde1aa5f4d5b4d35e61

Aliases

arxiv: 0809.1559 · arxiv_version: 0809.1559v1 · doi: 10.48550/arxiv.0809.1559 · pith_short_12: HSM6AO6ZNIAV · pith_short_16: HSM6AO6ZNIAV4RPO · pith_short_8: HSM6AO6Z

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/HSM6AO6ZNIAV4RPOQ2OT62PCZK \
  | 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: 3c99e03bd96a015e45ee869d3f69e2cabc3d0005da758fde1aa5f4d5b4d35e61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d01926d7ce1d1fd017e1a5a65f0d24ecb6133b6ccca50921623741bffd51169",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-09T14:09:43Z",
    "title_canon_sha256": "2f62f9c555699b79c5ef3ee971e2d729e117e963242a8fdc8bdae29402f988b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.1559",
    "kind": "arxiv",
    "version": 1
  }
}