Pith Number

pith:JUARF7FI

pith:2026:JUARF7FILPN7M2KEYFDEHIQ3BE

not attested not anchored not stored refs pending

Do we understand the star formation history of the universe?

Sahil Hegde, Smadar Naoz, Steven R. Furlanetto

arxiv:2607.09848 v1 · 2026-07-10 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JUARF7FILPN7M2KEYFDEHIQ3BE}

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	2026-07-14T00:18:39.200915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d0112fca85bdbf66944c14643a21b0929dcf94589e22a6042d22ed559217e00

Aliases

arxiv: 2607.09848 · arxiv_version: 2607.09848v1 · doi: 10.48550/arxiv.2607.09848 · pith_short_12: JUARF7FILPN7 · pith_short_16: JUARF7FILPN7M2KE · pith_short_8: JUARF7FI

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/JUARF7FILPN7M2KEYFDEHIQ3BE \
  | 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: 4d0112fca85bdbf66944c14643a21b0929dcf94589e22a6042d22ed559217e00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50bf38557aea896ca9a387b894acbadf1bed25c01ee780f62fada78974ae70cf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-10T18:00:00Z",
    "title_canon_sha256": "423368c8f23dfd4b78513e7c942eb53abb3afc8bc300eca29b26f2c01bcb2abc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.09848",
    "kind": "arxiv",
    "version": 1
  }
}