Pith Number

pith:SR5HDGFY

pith:2019:SR5HDGFYQLAGGSSLCGY4ZTZOI3

not attested not anchored not stored refs pending

Massive and old quiescent galaxies at high redshift

Andrea Cimatti, Giacomo Girelli, Micol Bolzonella

arxiv:1910.07544 v2 · 2019-10-16 · 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{SR5HDGFYQLAGGSSLCGY4ZTZOI3}

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	2026-07-05T00:23:45.514762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

947a7198b882c0634a4b11b1cccf2e46cc37838de6da1c6fe27f83c87170cb38

Aliases

arxiv: 1910.07544 · arxiv_version: 1910.07544v2 · doi: 10.48550/arxiv.1910.07544 · pith_short_12: SR5HDGFYQLAG · pith_short_16: SR5HDGFYQLAGGSSL · pith_short_8: SR5HDGFY

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/SR5HDGFYQLAGGSSLCGY4ZTZOI3 \
  | 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: 947a7198b882c0634a4b11b1cccf2e46cc37838de6da1c6fe27f83c87170cb38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "044dc3bb88b1faabd96646a32c8db450fdf34fea6e09cf9378366aee55a93a7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-10-16T18:00:08Z",
    "title_canon_sha256": "a0b153dea6fc20fa1e408addb764847694261b104dbc5de506c0ae3e76114114"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.07544",
    "kind": "arxiv",
    "version": 2
  }
}