Pith Number

pith:QQHNDMZZ

pith:2017:QQHNDMZZHJC4ZFQSOQHGQPULFC

not attested not anchored not stored refs pending

A 1420 MHz Catalog of Compact Sources in the Northern Galactic Plane

A. R. Taylor, C. Sunstrum, D. A. Leahy, L. A. Higgs, R. Kothes, R. R. Ransom, T. L. Landecker, T. Wenwu

arxiv:1701.03138 v1 · 2017-01-11 · astro-ph.IM · 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{QQHNDMZZHJC4ZFQSOQHGQPULFC}

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	2026-05-18T00:50:17.302715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840ed1b3393a45cc9612740e683e8b288248bf503c6571683de08114df74f42b

Aliases

arxiv: 1701.03138 · arxiv_version: 1701.03138v1 · doi: 10.48550/arxiv.1701.03138 · pith_short_12: QQHNDMZZHJC4 · pith_short_16: QQHNDMZZHJC4ZFQS · pith_short_8: QQHNDMZZ

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/QQHNDMZZHJC4ZFQSOQHGQPULFC \
  | 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: 840ed1b3393a45cc9612740e683e8b288248bf503c6571683de08114df74f42b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d49a9ac5d129724864f5a1e44c1ec3eec037c6148c3b3044f818f008290876b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-01-11T19:41:34Z",
    "title_canon_sha256": "cadacdf4168c3f658a04b8e2571554add56a9f3a7ed61f6ae945fe57e7f774c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03138",
    "kind": "arxiv",
    "version": 1
  }
}