Pith Number

pith:VVTS2VH7

pith:2015:VVTS2VH7MJHJUCJW3CV6JV7QBN

not attested not anchored not stored refs pending

SCORCH I: The Galaxy-Halo Connection in the First Billion Years

Hy Trac, Philip Mansfield, Renyue Cen

arxiv:1507.02685 v2 · 2015-07-09 · 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{VVTS2VH7MJHJUCJW3CV6JV7QBN}

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	2026-05-18T01:28:04.207868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad672d54ff624e9a0936d8abe4d7f00b6966f0932f1da47b4a5e74876fc700a6

Aliases

arxiv: 1507.02685 · arxiv_version: 1507.02685v2 · doi: 10.48550/arxiv.1507.02685 · pith_short_12: VVTS2VH7MJHJ · pith_short_16: VVTS2VH7MJHJUCJW · pith_short_8: VVTS2VH7

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/VVTS2VH7MJHJUCJW3CV6JV7QBN \
  | 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: ad672d54ff624e9a0936d8abe4d7f00b6966f0932f1da47b4a5e74876fc700a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1d2404dd281d056cfb53ff6adbaa51eb7d0edb1e644115119ecccc26e7df2db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-07-09T20:00:33Z",
    "title_canon_sha256": "3c014f41485b21c746c0ff6ccb78c587c390a97a055de38b2f09c972fa0faf00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02685",
    "kind": "arxiv",
    "version": 2
  }
}