Pith Number

pith:TOWCFZGR

pith:2013:TOWCFZGRLXRICBST7HGQ72B3NA

not attested not anchored not stored refs pending

The Cosmic Star Formation Rate from the Faintest Galaxies in the Unobservable Universe

Andrew M. Hopkins (Australian Astronomical Observatory), Hasan Yuksel, Matthew D. Kistler (Lawrence Berkeley National Laboratory, UC Berkeley)

arxiv:1305.1630 v1 · 2013-05-07 · astro-ph.CO · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TOWCFZGRLXRICBST7HGQ72B3NA}

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	2026-05-18T03:26:11.780120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bac22e4d15de2810653f9cd0fe83b680740d8a1ed34de77cf2e01168fb4638d

Aliases

arxiv: 1305.1630 · arxiv_version: 1305.1630v1 · doi: 10.48550/arxiv.1305.1630 · pith_short_12: TOWCFZGRLXRI · pith_short_16: TOWCFZGRLXRICBST · pith_short_8: TOWCFZGR

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/TOWCFZGRLXRICBST7HGQ72B3NA \
  | 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: 9bac22e4d15de2810653f9cd0fe83b680740d8a1ed34de77cf2e01168fb4638d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daa70f33d718c71b0f593e12754363061fc12beb46ea6047498b51d20b2a5521",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-07T20:00:24Z",
    "title_canon_sha256": "07b5ee90d5442680ac42bc5beedc3a297600c054d513701002f91adf67517324"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1630",
    "kind": "arxiv",
    "version": 1
  }
}