Pith Number

pith:QBHQFQJ7

pith:2015:QBHQFQJ7FT3ZIA3IDOYHDRSAQF

not attested not anchored not stored refs pending

Environmental dependence of the HI mass function in the ALFALFA 70% catalogue

Emmanouil Papastergis, Martha P. Haynes, Michael G. Jones, Riccardo Giovanelli

arxiv:1510.07050 v2 · 2015-10-23 · 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{QBHQFQJ7FT3ZIA3IDOYHDRSAQF}

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	2026-05-18T01:20:33.583989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

804f02c13f2cf79403681bb071c64081615563c215d37cd7f7a4d65e2ac7d84e

Aliases

arxiv: 1510.07050 · arxiv_version: 1510.07050v2 · doi: 10.48550/arxiv.1510.07050 · pith_short_12: QBHQFQJ7FT3Z · pith_short_16: QBHQFQJ7FT3ZIA3I · pith_short_8: QBHQFQJ7

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/QBHQFQJ7FT3ZIA3IDOYHDRSAQF \
  | 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: 804f02c13f2cf79403681bb071c64081615563c215d37cd7f7a4d65e2ac7d84e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f03b0ca840d266fc94810f3c22b6a5c9472a643806765781ea2273a33cf84574",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-23T20:05:56Z",
    "title_canon_sha256": "bbd8d155d40cab85d5892a53a1311de68efc2b9da7aaba92f64a48017613e229"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07050",
    "kind": "arxiv",
    "version": 2
  }
}