Pith Number

pith:65SNSPRB

pith:1999:65SNSPRBWHAJ727GD4B34BP5AV

not attested not anchored not stored refs pending

Infrared Variation of Blazars

Gnu), J.H. Fan (CfA

arxiv:astro-ph/9910269 v1 · 1999-10-14 · 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{65SNSPRBWHAJ727GD4B34BP5AV}

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	2026-05-18T01:07:35.928478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f764d93e21b1c09febe61f03be05fd05411dfac9213e03eda154489a77fb0068

Aliases

arxiv: astro-ph/9910269 · arxiv_version: astro-ph/9910269v1 · doi: 10.48550/arxiv.astro-ph/9910269 · pith_short_12: 65SNSPRBWHAJ · pith_short_16: 65SNSPRBWHAJ727G · pith_short_8: 65SNSPRB

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/65SNSPRBWHAJ727GD4B34BP5AV \
  | 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: f764d93e21b1c09febe61f03be05fd05411dfac9213e03eda154489a77fb0068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3622612360ece8d63c0b05bef41035b1fc9904b4c243daba58c1121e11be3c14",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-14T16:14:22Z",
    "title_canon_sha256": "56f4e2fdaf125523f64c6d257f9b7bc76255e712358cefefb1c82817271c9be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910269",
    "kind": "arxiv",
    "version": 1
  }
}