Pith Number

pith:XW5AIZZP

pith:2011:XW5AIZZPPYC67VGMN66GLJEXOS

not attested not anchored not stored refs pending

VERITAS Observation of M 87

Nicola Galante

arxiv:1111.0252 v1 · 2011-11-01 · 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{XW5AIZZPPYC67VGMN66GLJEXOS}

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	2026-05-18T04:09:46.117307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdba04672f7e05efd4cc6fbc65a49774b0f28ae4d264b5542cd5d95e317b83e5

Aliases

arxiv: 1111.0252 · arxiv_version: 1111.0252v1 · doi: 10.48550/arxiv.1111.0252 · pith_short_12: XW5AIZZPPYC6 · pith_short_16: XW5AIZZPPYC67VGM · pith_short_8: XW5AIZZP

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/XW5AIZZPPYC67VGMN66GLJEXOS \
  | 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: bdba04672f7e05efd4cc6fbc65a49774b0f28ae4d264b5542cd5d95e317b83e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f9126a61fc713637880a1f0265b80abbd5007505fbaaf56347516508da70b05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-01T17:27:06Z",
    "title_canon_sha256": "25db87cdb3001fd3477e64fd547a2b1fde0909d3b3bc71708f0328ebde7db361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0252",
    "kind": "arxiv",
    "version": 1
  }
}