Pith Number

pith:VG4ANPCH

pith:2017:VG4ANPCHS4HW4MK6MOGHNMVHA4

not attested not anchored not stored refs pending

"Red" but Not "Dead": Actively Star-forming Brightest Cluster Galaxies at Low Redshifts

Haojing Yan, James Runge

arxiv:1712.01482 v1 · 2017-12-05 · 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{VG4ANPCHS4HW4MK6MOGHNMVHA4}

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	2026-05-18T00:24:15.040577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b806bc47970f6e315e638c76b2a707164ddad43e513b4bcc1fccb7102c7f0e

Aliases

arxiv: 1712.01482 · arxiv_version: 1712.01482v1 · doi: 10.48550/arxiv.1712.01482 · pith_short_12: VG4ANPCHS4HW · pith_short_16: VG4ANPCHS4HW4MK6 · pith_short_8: VG4ANPCH

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/VG4ANPCHS4HW4MK6MOGHNMVHA4 \
  | 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: a9b806bc47970f6e315e638c76b2a707164ddad43e513b4bcc1fccb7102c7f0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd8dadb7b11e86371ed0b3bf0721cc43f8967af9dfca6952c52b23096238ed8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-05T05:23:41Z",
    "title_canon_sha256": "eb308bd1f8e72f999edb49b264c1cb8642ca4b604664a2d4bbb62c18dacb5332"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01482",
    "kind": "arxiv",
    "version": 1
  }
}