Pith Number

pith:VAR5HDJ3

pith:2015:VAR5HDJ3IOH643LZ4KT7F6NHSK

not attested not anchored not stored refs pending

Optical spectroscopic observations of gamma-ray blazar candidates III. The 2013/2014 campaign in the Southern Hemisphere

A. Paggi (SAO-Harvard CfA), C. C. Cheung (NRL), D. Milisavljevic (SAO-Harvard CfA), F. Massaro (University of Turin, G. Tosti (University of Perugia), Howard. A. Smith (SAO-Harvard CfA), INFN, J. Strader (Michigan State University), L. Chomiuk (Michigan State University), M. Landoni (INAF-Osservatorio Astronomico di Brera, N. Masetti (INAF-IASF Bologna), R. D'Abrusco (SAO-Harvard CfA), SAO-Harvard CfA), Yale University)

arxiv:1503.04805 v1 · 2015-03-16 · 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{VAR5HDJ3IOH643LZ4KT7F6NHSK}

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	2026-05-18T01:40:50.542061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a823d38d3b438fee6d79e2a7f2f9a792aaa2e19fa9cb43230054c5a0db9e21be

Aliases

arxiv: 1503.04805 · arxiv_version: 1503.04805v1 · doi: 10.48550/arxiv.1503.04805 · pith_short_12: VAR5HDJ3IOH6 · pith_short_16: VAR5HDJ3IOH643LZ · pith_short_8: VAR5HDJ3

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/VAR5HDJ3IOH643LZ4KT7F6NHSK \
  | 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: a823d38d3b438fee6d79e2a7f2f9a792aaa2e19fa9cb43230054c5a0db9e21be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f63c7916ae3eb8f32450464eb37415a8ffe497983f4f2410b14ea7338ee4b6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-16T20:00:19Z",
    "title_canon_sha256": "9741943e2c59c404d48996fbd7a6bf536dfb45067ad7e351d8ff12ab7092edc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04805",
    "kind": "arxiv",
    "version": 1
  }
}