Pith Number

pith:U4MFOD5J

pith:2014:U4MFOD5J3RA3DHVXHD7243JAFB

not attested not anchored not stored refs pending

An Optical View of BL Lacertae Objects

(2) INAF-IASF Bologna, 3), (3) Scuola Normale Superiore di Pisa, (4) Univ. Insubria, 5) ((1) INAF-OA Padova, (5) INFN-Milano), Aldo Treves (4, Elena Pian (2, Renato Falomo (1)

arxiv:1407.7615 v1 · 2014-07-29 · 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{U4MFOD5J3RA3DHVXHD7243JAFB}

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	2026-05-18T00:56:51.398600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a718570fa9dc41b19eb738ffae6d2028778813738cc66570d0f55a44b847f443

Aliases

arxiv: 1407.7615 · arxiv_version: 1407.7615v1 · doi: 10.48550/arxiv.1407.7615 · pith_short_12: U4MFOD5J3RA3 · pith_short_16: U4MFOD5J3RA3DHVX · pith_short_8: U4MFOD5J

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/U4MFOD5J3RA3DHVXHD7243JAFB \
  | 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: a718570fa9dc41b19eb738ffae6d2028778813738cc66570d0f55a44b847f443

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eabec8ade70560a2529517012efb861cde4b648ba177a8c966a0884527eb3137",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-07-29T02:06:25Z",
    "title_canon_sha256": "5d0fbd92efa8697ba9f18cbb1fa78e04e65bf443d634f0050773c6780965516c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7615",
    "kind": "arxiv",
    "version": 1
  }
}