Pith Number

pith:HUPDC6BY

pith:2020:HUPDC6BYPV56CRQWGLVTYQZ4YV

not attested not anchored not stored refs pending

Age and Metallicity of galaxies in different environments of the Coma supercluster

Juhi Tiwari, Kulinder Pal Singh, Smriti Mahajan

arxiv:2005.02757 v1 · 2020-05-06 · 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{HUPDC6BYPV56CRQWGLVTYQZ4YV}

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	2026-07-05T01:12:46.242107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d1e3178387d7be1461632eb3c433cc579ec0a79728433ff3f78da9ac3073e6e

Aliases

arxiv: 2005.02757 · arxiv_version: 2005.02757v1 · doi: 10.48550/arxiv.2005.02757 · pith_short_12: HUPDC6BYPV56 · pith_short_16: HUPDC6BYPV56CRQW · pith_short_8: HUPDC6BY

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/HUPDC6BYPV56CRQWGLVTYQZ4YV \
  | 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: 3d1e3178387d7be1461632eb3c433cc579ec0a79728433ff3f78da9ac3073e6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c65cb9c898e4c2c1314c61fba30f4609a2eaddf7caba00d83d459a22822f361",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-05-06T12:17:18Z",
    "title_canon_sha256": "18e493e555552c6430371947b4ccfc80d974d214ca4639ab209bd030a6d7041f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.02757",
    "kind": "arxiv",
    "version": 1
  }
}