Pith Number

pith:MCQWGSRC

pith:2013:MCQWGSRC5LYTHKWTCP5QVVLHC2

not attested not anchored not stored refs pending

Primordial star formation: relative impact of H2 three-body rates and initial conditions

D. R. G. Schleicher, S. Bovino, T. Grassi

arxiv:1307.7567 v2 · 2013-07-29 · astro-ph.CO

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

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	2026-05-18T01:48:33.490442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60a1634a22eaf133aad313fb0ad567168308a2e694d40fa1f3aa0f6ca6a3bd87

Aliases

arxiv: 1307.7567 · arxiv_version: 1307.7567v2 · doi: 10.48550/arxiv.1307.7567 · pith_short_12: MCQWGSRC5LYT · pith_short_16: MCQWGSRC5LYTHKWT · pith_short_8: MCQWGSRC

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/MCQWGSRC5LYTHKWTCP5QVVLHC2 \
  | 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: 60a1634a22eaf133aad313fb0ad567168308a2e694d40fa1f3aa0f6ca6a3bd87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b35723e6acf4c9a12a6e084d4b927d72dd444389529c75aeecbc93a072c5554",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-29T13:09:02Z",
    "title_canon_sha256": "86a422d60f71bbd8c27c95682c34d690fe06ba2cd2a64d40d75cd12cd53abe37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7567",
    "kind": "arxiv",
    "version": 2
  }
}