Pith Number

pith:EUS4IR64

pith:1999:EUS4IR64RXQCP6H7DJHUWZKTBQ

not attested not anchored not stored refs pending

IMF and evolution of close binaries after starformation bursts

M.E. Prokhorov, S.B. Popov, V.M. Lipunov (Sternberg Astronomical Institute)

arxiv:astro-ph/9912552 v1 · 1999-12-30 · 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{EUS4IR64RXQCP6H7DJHUWZKTBQ}

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	2026-05-18T01:07:35.653562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2525c447dc8de027f8ff1a4f4b65530c0e3ef90de2649e1cde3afeafd4fea660

Aliases

arxiv: astro-ph/9912552 · arxiv_version: astro-ph/9912552v1 · doi: 10.48550/arxiv.astro-ph/9912552 · pith_short_12: EUS4IR64RXQC · pith_short_16: EUS4IR64RXQCP6H7 · pith_short_8: EUS4IR64

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/EUS4IR64RXQCP6H7DJHUWZKTBQ \
  | 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: 2525c447dc8de027f8ff1a4f4b65530c0e3ef90de2649e1cde3afeafd4fea660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77b558b1eedbc4ce9e6947fc4753f7640781ffa37d3a51516041f93f95c468d5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-30T10:20:57Z",
    "title_canon_sha256": "c7ea2cc752c3ef1710636e2e28d5e9c1ad6d54f7d0fdd74089bf0b9f5e85205c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912552",
    "kind": "arxiv",
    "version": 1
  }
}