Pith Number

pith:7PRROGKW

pith:2011:7PRROGKWJTDXQIQ7VWZ2K5E2DT

not attested not anchored not stored refs pending

Sample variance in photometric redshift calibration: cosmological biases and survey requirements

2), (2) KIPAC, 3), (3) ITP, 4) ((1) University of Michigan, (4) SLAC), Carlos E. Cunha (1, Dragan Huterer (2), Michael T. Busha (2, Risa H. Wechsler (2, Stanford, University of Zurich

arxiv:1109.5691 v2 · 2011-09-26 · 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{7PRROGKWJTDXQIQ7VWZ2K5E2DT}

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	2026-05-18T02:32:31.265099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe31719564cc778221fadb3a5749a1cf3b19632c6d18daf25e0e5e5e6a02b63

Aliases

arxiv: 1109.5691 · arxiv_version: 1109.5691v2 · doi: 10.48550/arxiv.1109.5691 · pith_short_12: 7PRROGKWJTDX · pith_short_16: 7PRROGKWJTDXQIQ7 · pith_short_8: 7PRROGKW

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/7PRROGKWJTDXQIQ7VWZ2K5E2DT \
  | 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: fbe31719564cc778221fadb3a5749a1cf3b19632c6d18daf25e0e5e5e6a02b63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e72de8682b7e9ae2eb34afd9b6b813bcf6b7fb9b0a671d85697725a513d95d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-26T20:00:00Z",
    "title_canon_sha256": "8978fc6829e9725f90cdd863930bfe89dc8420253d22a6a92cf5c90741998f1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5691",
    "kind": "arxiv",
    "version": 2
  }
}