Pith Number

pith:4U55EHYP

pith:2019:4U55EHYPAI7TKXMJCL22CHRFZZ

not attested not anchored not stored refs pending

Spectral Energy Distribution of the First Galaxies: Contribution from Pre-Main-Sequence Stars

Hiroto Mitani, Kazuyuki Omukai, Naoki Yoshida, Takashi Hosokawa

arxiv:1904.07611 v2 · 2019-04-16 · 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{4U55EHYPAI7TKXMJCL22CHRFZZ}

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	2026-05-17T23:41:09.008230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53bd21f0f023f355d8912f5a11e25ce7200693945ec90ea2d6d9565cf94e26e

Aliases

arxiv: 1904.07611 · arxiv_version: 1904.07611v2 · doi: 10.48550/arxiv.1904.07611 · pith_short_12: 4U55EHYPAI7T · pith_short_16: 4U55EHYPAI7TKXMJ · pith_short_8: 4U55EHYP

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/4U55EHYPAI7TKXMJCL22CHRFZZ \
  | 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: e53bd21f0f023f355d8912f5a11e25ce7200693945ec90ea2d6d9565cf94e26e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "babc242faae22a7db163b0f1ce872b60cdc55210ec88ef9aa5277541781a8881",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-16T12:05:38Z",
    "title_canon_sha256": "afe6a622ac08894731b1b77ba85794d38039dbad5bb97a7f0815aebbae795721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07611",
    "kind": "arxiv",
    "version": 2
  }
}