Pith Number

pith:2L34UEO6

pith:2015:2L34UEO6V6LBM6ID7KC5DGUOEK

not attested not anchored not stored refs pending

Evolution of Star Formation in the UKIDSS Ultra Deep Survey Field - II. Star Formation as a Function of Stellar Mass Between z=1.46 and z=0.63

Alyssa B. Drake, Chris A. Collins, Chris Simpson, Daniel J. B. Smith, Ivan K. Baldry, James S. Dunlop, Masami Ouchi, Phil A. James, Suraphong Yuma

arxiv:1509.06900 v1 · 2015-09-23 · astro-ph.GA · 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{2L34UEO6V6LBM6ID7KC5DGUOEK}

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	2026-05-18T01:29:44.477751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2f7ca11deaf96167903fa85d19a8e228fb1a1ceb25f51b63ef60fc531c7b283

Aliases

arxiv: 1509.06900 · arxiv_version: 1509.06900v1 · doi: 10.48550/arxiv.1509.06900 · pith_short_12: 2L34UEO6V6LB · pith_short_16: 2L34UEO6V6LBM6ID · pith_short_8: 2L34UEO6

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/2L34UEO6V6LBM6ID7KC5DGUOEK \
  | 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: d2f7ca11deaf96167903fa85d19a8e228fb1a1ceb25f51b63ef60fc531c7b283

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2619c867e102b3ec4a98b5a974a353442fb9c92eb9b2fded533c4a81564b31e9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-23T09:36:59Z",
    "title_canon_sha256": "de5665ad09a0914e30f536eb2b401f32bce83f587fec3d1d7caa4a7df3812f7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06900",
    "kind": "arxiv",
    "version": 1
  }
}