Pith Number

pith:4ZR7KN4E

pith:2011:4ZR7KN4EEDNDWHNDSNOCI6ZOWW

not attested not anchored not stored refs pending

Calibrating the Star Formation Rate at z=1 from Optical Data

Alison L. Coil, Benjamin J. Weiner, John Moustakas, Nick Mostek, Samir Salim

arxiv:1108.2503 v1 · 2011-08-11 · 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{4ZR7KN4EEDNDWHNDSNOCI6ZOWW}

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	2026-05-18T02:21:42.103397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e663f5378420da3b1da3935c247b2eb58198cb4d7faf1ef184dd3f4e2c530c94

Aliases

arxiv: 1108.2503 · arxiv_version: 1108.2503v1 · doi: 10.48550/arxiv.1108.2503 · pith_short_12: 4ZR7KN4EEDND · pith_short_16: 4ZR7KN4EEDNDWHND · pith_short_8: 4ZR7KN4E

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/4ZR7KN4EEDNDWHNDSNOCI6ZOWW \
  | 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: e663f5378420da3b1da3935c247b2eb58198cb4d7faf1ef184dd3f4e2c530c94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69cc5cb492f7db67c63366f84348ebbde0875be87582ff57614b19a36e833455",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-11T19:49:10Z",
    "title_canon_sha256": "9a18dc05966bbdb2cdb6bd61d54eae8dc59b30c7868da5487d900c5a1925f67c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2503",
    "kind": "arxiv",
    "version": 1
  }
}