Pith Number

pith:ZKDTDDW4

pith:2020:ZKDTDDW4TYUXWS54CSFKH2UPYO

not attested not anchored not stored refs pending

The Evolution of the Star-forming Interstellar Medium across Cosmic Time

Amiel Sternberg, Linda J. Tacconi, Reinhard Genzel

arxiv:2003.06245 v1 · 2020-03-13 · 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{ZKDTDDW4TYUXWS54CSFKH2UPYO}

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.

Cited by

1 paper in Pith

Weak Evolution of Cosmic Atomic Hydrogen over the Past 4.5 Billion Years

Receipt and verification

First computed	2026-07-05T01:50:18.937062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca87318edc9e297b4bbc148aa3ea8fc3a585ec3feda1c5f33792797a915e2396

Aliases

arxiv: 2003.06245 · arxiv_version: 2003.06245v1 · doi: 10.48550/arxiv.2003.06245 · pith_short_12: ZKDTDDW4TYUX · pith_short_16: ZKDTDDW4TYUXWS54 · pith_short_8: ZKDTDDW4

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/ZKDTDDW4TYUXWS54CSFKH2UPYO \
  | 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: ca87318edc9e297b4bbc148aa3ea8fc3a585ec3feda1c5f33792797a915e2396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d802bdfa171f440731a262518804322cc54c0fc076585d87e63847d922bed7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-03-13T12:52:53Z",
    "title_canon_sha256": "31cc6ac610b0351f519d69d9d8602736eb287631aa51deed01e9b318a75a55b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.06245",
    "kind": "arxiv",
    "version": 1
  }
}