Pith Number

pith:G7EH3UYS

pith:1999:G7EH3UYS4OENE3UOVMEW7T63QL

not attested not anchored not stored refs pending

Emission Spectra of Fallback Disks Around Young Neutron Stars

Lars Hernquist, Ramesh Narayan (Harvard), Rosalba Perna

arxiv:astro-ph/9912297 v1 · 1999-12-15 · 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{G7EH3UYS4OENE3UOVMEW7T63QL}

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	2026-07-04T16:12:01.090273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37c87dd312e388d26e8eab096fcfdb82c85f50b83ff3579b09db7bd501fc7301

Aliases

arxiv: astro-ph/9912297 · arxiv_version: astro-ph/9912297v1 · doi: 10.48550/arxiv.astro-ph/9912297 · pith_short_12: G7EH3UYS4OEN · pith_short_16: G7EH3UYS4OENE3UO · pith_short_8: G7EH3UYS

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/G7EH3UYS4OENE3UOVMEW7T63QL \
  | 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: 37c87dd312e388d26e8eab096fcfdb82c85f50b83ff3579b09db7bd501fc7301

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ca7461a0f5ef0da3fc3403f677089b25e4ea7f037c302b27bc11cd58cce565a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-15T01:53:28Z",
    "title_canon_sha256": "f6af5cf29b6dd0523ee966ee7ae50cd57cbc0466c2f761fa253ea1fb6b8ae600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912297",
    "kind": "arxiv",
    "version": 1
  }
}