Pith Number

pith:4Z4MQDMC

pith:2017:4Z4MQDMCFK4UY6TKQZSLXFDQLT

not attested not anchored not stored refs pending

The role of atomic hydrogen in regulating the scatter of the mass-metallicity relation

Barbara Catinella, Luca Cortese, Toby Brown, Virginia Kilborn

arxiv:1709.07890 v1 · 2017-09-22 · 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{4Z4MQDMCFK4UY6TKQZSLXFDQLT}

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	2026-05-18T00:30:41.145960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e678c80d822ab94c7a6a8664bb94705cfe440f90b81b1b0ed74e3000c017fbdd

Aliases

arxiv: 1709.07890 · arxiv_version: 1709.07890v1 · doi: 10.48550/arxiv.1709.07890 · pith_short_12: 4Z4MQDMCFK4U · pith_short_16: 4Z4MQDMCFK4UY6TK · pith_short_8: 4Z4MQDMC

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/4Z4MQDMCFK4UY6TKQZSLXFDQLT \
  | 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: e678c80d822ab94c7a6a8664bb94705cfe440f90b81b1b0ed74e3000c017fbdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57009f473a2e2c487dc0347fd30085c4e58bb0fc37a72c9c239edf62a8c13d15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-22T18:01:03Z",
    "title_canon_sha256": "c731cfad0a3cf177b736d2a15619bcbe94cedf046086647c98d2d7836749038c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07890",
    "kind": "arxiv",
    "version": 1
  }
}