Pith Number

pith:O4KG6F45

pith:2015:O4KG6F45IG3D36ZLPMMLFWQKAY

not attested not anchored not stored refs pending

Star Formation Activity in the Long, Filamentary Infrared Dark Cloud G53.2

Bon-Chul Koo, Christopher J. Davis, Hyun-Jeong Kim

arxiv:1502.04598 v1 · 2015-02-16 · 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{O4KG6F45IG3D36ZLPMMLFWQKAY}

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	2026-05-18T01:41:01.348772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77146f179d41b63dfb2b7b18b2da0a060e98e9feb3d7cca557a884b60a63d3d4

Aliases

arxiv: 1502.04598 · arxiv_version: 1502.04598v1 · doi: 10.48550/arxiv.1502.04598 · pith_short_12: O4KG6F45IG3D · pith_short_16: O4KG6F45IG3D36ZL · pith_short_8: O4KG6F45

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/O4KG6F45IG3D36ZLPMMLFWQKAY \
  | 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: 77146f179d41b63dfb2b7b18b2da0a060e98e9feb3d7cca557a884b60a63d3d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38308ca223d99c41bec80eab7c0d3f011d89de8b3b839f9dbcdf8a139537a34f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-16T16:19:12Z",
    "title_canon_sha256": "0100a893e5d8477432f7dbd71a4452db28e47821d5ef98d9974f9f4217ee096d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04598",
    "kind": "arxiv",
    "version": 1
  }
}