Pith Number

pith:TAP7A5WI

pith:2018:TAP7A5WIX4UZ4FTEPUJPBT3CBJ

not attested not anchored not stored refs pending

Star formation across cosmic time with radio surveys. The promise of the SKA

Gianfranco De Zotti, Matteo Bonato, Zhen-Yi Cai

arxiv:1802.06561 v2 · 2018-02-19 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAP7A5WIX4UZ4FTEPUJPBT3CBJ}

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	2026-05-18T00:20:46.270475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

981ff076c8bf299e16647d12f0cf620a66dee8deb13bcf75b74954f3a9121007

Aliases

arxiv: 1802.06561 · arxiv_version: 1802.06561v2 · doi: 10.48550/arxiv.1802.06561 · pith_short_12: TAP7A5WIX4UZ · pith_short_16: TAP7A5WIX4UZ4FTE · pith_short_8: TAP7A5WI

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/TAP7A5WIX4UZ4FTEPUJPBT3CBJ \
  | 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: 981ff076c8bf299e16647d12f0cf620a66dee8deb13bcf75b74954f3a9121007

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a05a7975e20b60b63090d0d8c271059a93c1b8725df67c095cd3b2e48a0a2c9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-19T09:23:27Z",
    "title_canon_sha256": "d972dd1f8341b0ffe376d93c312395d1542248b5474eb11a8b8f97b26ee0f660"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06561",
    "kind": "arxiv",
    "version": 2
  }
}