Pith Number

pith:YQVKYJOQ

pith:2009:YQVKYJOQOLCFZ3MN2ZLBHG4E5I

not attested not anchored not stored refs pending

Lower bounds on photometric redshift errors from Type Ia supernovae templates

K. Cook, L. Wang, S. Asztalos, S. Nikolaev, S. Olivier, W. De Vries

arxiv:0907.5421 v1 · 2009-07-30 · astro-ph.IM · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQVKYJOQOLCFZ3MN2ZLBHG4E5I}

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	2026-05-18T02:12:45.977651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c42aac25d072c45ced8dd656139b84ea0e36070a30e694cd0b73a50a349cac73

Aliases

arxiv: 0907.5421 · arxiv_version: 0907.5421v1 · doi: 10.48550/arxiv.0907.5421 · pith_short_12: YQVKYJOQOLCF · pith_short_16: YQVKYJOQOLCFZ3MN · pith_short_8: YQVKYJOQ

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/YQVKYJOQOLCFZ3MN2ZLBHG4E5I \
  | 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: c42aac25d072c45ced8dd656139b84ea0e36070a30e694cd0b73a50a349cac73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e28a38df26f73c24698f25aa4b654c8b33f5a85aa901e4eedbbe9fe83e1968d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-07-30T20:15:32Z",
    "title_canon_sha256": "80e306cecb41b26246f92f525ad7ca244493c9137817afc2091069f6c4c93dab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5421",
    "kind": "arxiv",
    "version": 1
  }
}