Pith Number

pith:ZL2PW6RP

pith:2016:ZL2PW6RPN5BIGVKWHEL2M4JCF5

not attested not anchored not stored refs pending

The HI Content of Galaxies in Groups and Clusters as Measured by ALFALFA

Adina Micula, Christopher McGowan, Gregory Hallenbeck, Lyle Reed, Martha P. Haynes, Mary Crone Odekon, Rebecca A. Koopmann, Riccardo Giovanelli, Rose A. Finn

arxiv:1604.08862 v2 · 2016-04-29 · 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{ZL2PW6RPN5BIGVKWHEL2M4JCF5}

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	2026-05-18T01:11:44.364965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caf4fb7a2f6f428355563917a671222f4cf67bd043967687f4af38aada9fe4b6

Aliases

arxiv: 1604.08862 · arxiv_version: 1604.08862v2 · doi: 10.48550/arxiv.1604.08862 · pith_short_12: ZL2PW6RPN5BI · pith_short_16: ZL2PW6RPN5BIGVKW · pith_short_8: ZL2PW6RP

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/ZL2PW6RPN5BIGVKWHEL2M4JCF5 \
  | 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: caf4fb7a2f6f428355563917a671222f4cf67bd043967687f4af38aada9fe4b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffb01c6579ef1f517a7aaee62fb70ffc684004ac87edb46dddd3d37d6be22d5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-04-29T14:58:09Z",
    "title_canon_sha256": "2d546f94eaf949428bbe60be165ae5f9ebe79337f67a37f3880d868903f04c0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08862",
    "kind": "arxiv",
    "version": 2
  }
}