Pith Number

pith:VRASVGDJ

pith:2007:VRASVGDJ2QUD4ESECGSGRMXZ5Z

not attested not anchored not stored refs pending

New limits on the density of the extragalactic background light in the optical to the far-infrared from the spectra of all known TeV blazars

Daniel Mazin, Martin Raue

arxiv:astro-ph/0701694 v3 · 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{VRASVGDJ2QUD4ESECGSGRMXZ5Z}

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	2026-07-04T15:21:52.568614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac412a9869d4283e124411a468b2f9ee49889a0affa953202cb6eab5bceace20

Aliases

arxiv: astro-ph/0701694 · arxiv_version: astro-ph/0701694v3 · doi: 10.48550/arxiv.astro-ph/0701694 · pith_short_12: VRASVGDJ2QUD · pith_short_16: VRASVGDJ2QUD4ESE · pith_short_8: VRASVGDJ

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/VRASVGDJ2QUD4ESECGSGRMXZ5Z \
  | 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: ac412a9869d4283e124411a468b2f9ee49889a0affa953202cb6eab5bceace20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "239b4728ee71fb118f743f6c0db9be27f8d688fef0c0099969964332b075a417",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-24T15:38:16Z",
    "title_canon_sha256": "361c4f7b778df8b092ada81edbb26086b29a52bf9d3136dea6242228680b40f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701694",
    "kind": "arxiv",
    "version": 3
  }
}