Pith Number

pith:RALB2QAH

pith:2012:RALB2QAHAPQGJVXMYGNJQLBVWK

not attested not anchored not stored refs pending

Parsec-scale jet precession in BL Lacertae (2200+420)

Anderson Caproni (NAT-Universidade Cruzeiro do Sul), Hektor Monteiro (UNIFEI), Zulema Abraham (IAG/USP)

arxiv:1210.2286 v1 · 2012-10-08 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RALB2QAHAPQGJVXMYGNJQLBVWK}

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	2026-05-18T01:54:04.605652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88161d400703e064d6ecc19a982c35b2b3858be2d6998befeca4296a77d2850e

Aliases

arxiv: 1210.2286 · arxiv_version: 1210.2286v1 · doi: 10.48550/arxiv.1210.2286 · pith_short_12: RALB2QAHAPQG · pith_short_16: RALB2QAHAPQGJVXM · pith_short_8: RALB2QAH

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/RALB2QAHAPQGJVXMYGNJQLBVWK \
  | 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: 88161d400703e064d6ecc19a982c35b2b3858be2d6998befeca4296a77d2850e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6d555bff5585d17269d94ad3b2fae88066a63c23dcb17c535e948225fa5cd5d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-10-08T14:07:45Z",
    "title_canon_sha256": "a70c7917d50ba950ce5f0f91c3d0875d56c2fbbe2214fefcd34b9815e704c6d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2286",
    "kind": "arxiv",
    "version": 1
  }
}