Pith Number

pith:GRSPVNAA

pith:2007:GRSPVNAAIAYNX2T25YGUOMPHKZ

not attested not anchored not stored refs pending

Impact of dark matter on reionization and heating

2), (2) University of Z\"urich, (3) Kapteyn Astronomical Institute, E. Ripamonti (3) ((1) SISSA, M. Mapelli (1, University of Groningen)

arxiv:astro-ph/0701672 v1 · 2007-01-24 · 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{GRSPVNAAIAYNX2T25YGUOMPHKZ}

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	2026-05-18T00:59:12.656249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3464fab4004030dbea7aee0d4731e75643903f3af8b882c3368deabb7e0e8c29

Aliases

arxiv: astro-ph/0701672 · arxiv_version: astro-ph/0701672v1 · doi: 10.48550/arxiv.astro-ph/0701672 · pith_short_12: GRSPVNAAIAYN · pith_short_16: GRSPVNAAIAYNX2T2 · pith_short_8: GRSPVNAA

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/GRSPVNAAIAYNX2T25YGUOMPHKZ \
  | 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: 3464fab4004030dbea7aee0d4731e75643903f3af8b882c3368deabb7e0e8c29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc3e2438bcfa053aba541c38728abf79855fa68f5ec3be61c65b4f05e446720a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-24T08:43:46Z",
    "title_canon_sha256": "4fc620781029fa6fa1ed9050e95cde1119bebeb22f7b822218cbaed90a774819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701672",
    "kind": "arxiv",
    "version": 1
  }
}