Pith Number

pith:J5FXARCB

pith:2015:J5FXARCBTCKSWMNLYZDVHSGHDY

not attested not anchored not stored refs pending

The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. XII. The Perseus YSO Population as Observed with IRAC and MIPS

Chadwick H. Young, Kaisa E. Young, Michael M. Dunham, Neal J. Evans II, Shih-Ping Lai

arxiv:1505.08122 v1 · 2015-05-29 · astro-ph.SR · 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{J5FXARCBTCKSWMNLYZDVHSGHDY}

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	2026-05-18T01:35:47.457698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f4b70444198952b31abc64753c8c71e123d7941bb243ec0bdef6047d5b2dd8e

Aliases

arxiv: 1505.08122 · arxiv_version: 1505.08122v1 · doi: 10.48550/arxiv.1505.08122 · pith_short_12: J5FXARCBTCKS · pith_short_16: J5FXARCBTCKSWMNL · pith_short_8: J5FXARCB

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/J5FXARCBTCKSWMNLYZDVHSGHDY \
  | 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: 4f4b70444198952b31abc64753c8c71e123d7941bb243ec0bdef6047d5b2dd8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7674fb25d7123df2c3cad9392f3cf29e8a2b974640c6c4249405c1edc1bae6cc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-29T17:45:30Z",
    "title_canon_sha256": "382ea99abf6c958d75f8deef53c49384e6b5aed16964bd84ab811e6eff032eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.08122",
    "kind": "arxiv",
    "version": 1
  }
}