Pith Number

pith:TLPSF2AV

pith:2013:TLPSF2AVFAYRPPD23IUVGSKOPW

not attested not anchored not stored refs pending

Exploring the bulk of the BL Lac object population:1. parsec-scale radio structures

A. Mignano, B. Boccardi, C. Casadio, E. Liuzzo, G.B. Taylor, G. Giovannini, G. Tosti, M. Giroletti, M. Kadler, S. Tamburri

arxiv:1309.2774 v1 · 2013-09-11 · 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{TLPSF2AVFAYRPPD23IUVGSKOPW}

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	2026-05-18T01:47:43.350735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9adf22e815283117bc7ada2953494e7db022731ec67de7a75f359e71b0b2905e

Aliases

arxiv: 1309.2774 · arxiv_version: 1309.2774v1 · doi: 10.48550/arxiv.1309.2774 · pith_short_12: TLPSF2AVFAYR · pith_short_16: TLPSF2AVFAYRPPD2 · pith_short_8: TLPSF2AV

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/TLPSF2AVFAYRPPD23IUVGSKOPW \
  | 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: 9adf22e815283117bc7ada2953494e7db022731ec67de7a75f359e71b0b2905e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b204574b6e84aa35fab6066d9066383f1a57ba7fe11303ce5d43141ed1f7733",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-11T09:45:48Z",
    "title_canon_sha256": "5d95ec8605236ebf5d051bd5362db6d4c901e8110aa6b378791724ac3735639b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2774",
    "kind": "arxiv",
    "version": 1
  }
}