Pith Number

pith:SRQPR2EY

pith:1996:SRQPR2EYYRGWV2VDAPZ5I4EWHQ

not attested not anchored not stored refs pending

The fragment mass scale of the primordial gas clouds I

Hajime Susa, Hideya Uehara, Ryoichi Nishi

arxiv:astro-ph/9604052 v1 · 1996-04-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRQPR2EYYRGWV2VDAPZ5I4EWHQ}

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	2026-05-18T01:07:41.029444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9460f8e898c44d6aeaa303f3d470963c1bac2ae6d139820b409d7b90a8b501b7

Aliases

arxiv: astro-ph/9604052 · arxiv_version: astro-ph/9604052v1 · doi: 10.48550/arxiv.astro-ph/9604052 · pith_short_12: SRQPR2EYYRGW · pith_short_16: SRQPR2EYYRGWV2VD · pith_short_8: SRQPR2EY

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/SRQPR2EYYRGWV2VDAPZ5I4EWHQ \
  | 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: 9460f8e898c44d6aeaa303f3d470963c1bac2ae6d139820b409d7b90a8b501b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1886b4c71dd9d8828d8e15704bcbb207d5ca94d41277ff0f9eb01c0ce2050262",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-04-11T08:00:33Z",
    "title_canon_sha256": "64f9eeddb600e1709a292591321b6bdd46b0cec280398caa353811b48147cf6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9604052",
    "kind": "arxiv",
    "version": 1
  }
}