Pith Number

pith:EURV4EZQ

pith:2016:EURV4EZQSSVPZQAW7BXUMLO2Y4

not attested not anchored not stored refs pending

HI, CO, and Dust in the Perseus Cloud

Hiroaki Yamamoto, Katsuhiro Hayashi, Kengo Tachihara, Ryuji Okamoto, Takahiro Hayakawa, Yasuo Fukui

arxiv:1612.07696 v3 · 2016-12-22 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EURV4EZQSSVPZQAW7BXUMLO2Y4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:46:38.276090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25235e133094aafcc016f86f462ddac72f27498cdb64b0bdaf55b9fc06c905ea

Aliases

arxiv: 1612.07696 · arxiv_version: 1612.07696v3 · doi: 10.48550/arxiv.1612.07696 · pith_short_12: EURV4EZQSSVP · pith_short_16: EURV4EZQSSVPZQAW · pith_short_8: EURV4EZQ

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/EURV4EZQSSVPZQAW7BXUMLO2Y4 \
  | 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: 25235e133094aafcc016f86f462ddac72f27498cdb64b0bdaf55b9fc06c905ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "890df4ba1a47124a0b44889678ab8f6f46d60406b2a71e90ecf630de7d680dd9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-22T16:59:39Z",
    "title_canon_sha256": "72a0699cf1ed5955971c2a8fee76e9192b2982ef43b1f5ed9683a83f43e8b39f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07696",
    "kind": "arxiv",
    "version": 3
  }
}