Pith Number

pith:64O6OQ3M

pith:2009:64O6OQ3MI3MMRISB2KDCIOTX72

not attested not anchored not stored refs pending

Optical, ultraviolet, and infrared observations of isolated neutron stars

Roberto P. Mignani

arxiv:0912.2931 v1 · 2009-12-15 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64O6OQ3MI3MMRISB2KDCIOTX72}

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	2026-05-18T04:25:50.792260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f71de7436c46d8c8a241d286243a77fe978c2058a7caec0db0201025d5d7db5f

Aliases

arxiv: 0912.2931 · arxiv_version: 0912.2931v1 · doi: 10.48550/arxiv.0912.2931 · pith_short_12: 64O6OQ3MI3MM · pith_short_16: 64O6OQ3MI3MMRISB · pith_short_8: 64O6OQ3M

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/64O6OQ3MI3MMRISB2KDCIOTX72 \
  | 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: f71de7436c46d8c8a241d286243a77fe978c2058a7caec0db0201025d5d7db5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5969fa47ef566519d34618ae1877f3cbb78b1bbca12e9bf4e7f8360c338a9e54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-15T15:33:24Z",
    "title_canon_sha256": "fe139d2d4ec72bf6522dba6ac6852cdd49c508ea2af89f3d5a17a533ef721696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2931",
    "kind": "arxiv",
    "version": 1
  }
}