Pith Number

pith:RDKASPRA

pith:2014:RDKASPRA4X3BOBJXRO6HY5XBMX

not attested not anchored not stored refs pending

A new approach to determine optically thick H2 cooling and its effect on primordial star formation

Mei Sasaki, Paul C. Clark, Ralf S. Klessen, Simon C.O. Glover, Tilman Hartwig

arxiv:1407.2102 v3 · 2014-07-02 · 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{RDKASPRA4X3BOBJXRO6HY5XBMX}

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	2026-05-18T02:17:12.130014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88d4093e20e5f61705378bbc7c76e165cdac5a45ed8491885963e37c39a6ac4d

Aliases

arxiv: 1407.2102 · arxiv_version: 1407.2102v3 · doi: 10.48550/arxiv.1407.2102 · pith_short_12: RDKASPRA4X3B · pith_short_16: RDKASPRA4X3BOBJX · pith_short_8: RDKASPRA

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/RDKASPRA4X3BOBJXRO6HY5XBMX \
  | 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: 88d4093e20e5f61705378bbc7c76e165cdac5a45ed8491885963e37c39a6ac4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb5496391f1f193d74d43f9556b544b338064469a13b82c3d3a28124cce08a62",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-07-02T13:32:48Z",
    "title_canon_sha256": "1414fc5db5fe39b2933e0faebc66ef6504eccc4df5bd9b6363f8a7e7b3f9c6ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.2102",
    "kind": "arxiv",
    "version": 3
  }
}