Pith Number

pith:4FOKA76K

pith:2017:4FOKA76KKGAQ3IMTHZU6U5ERAW

not attested not anchored not stored refs pending

Optical spectroscopic classification of a selection of Southern Hemisphere Fermi-LAT unclassified blazars

B. van Soelen, L. Klindt, P.J. Meintjes, P. V\"ais\"anen

arxiv:1701.06363 v1 · 2017-01-23 · 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{4FOKA76KKGAQ3IMTHZU6U5ERAW}

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	2026-05-18T00:51:40.950470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e15ca07fca51810da1933e69ea74910587d2cf2123c9e3bc41f82f35a64d9517

Aliases

arxiv: 1701.06363 · arxiv_version: 1701.06363v1 · doi: 10.48550/arxiv.1701.06363 · pith_short_12: 4FOKA76KKGAQ · pith_short_16: 4FOKA76KKGAQ3IMT · pith_short_8: 4FOKA76K

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/4FOKA76KKGAQ3IMTHZU6U5ERAW \
  | 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: e15ca07fca51810da1933e69ea74910587d2cf2123c9e3bc41f82f35a64d9517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a27d72b3312b5eb83b4fc26b4f42cd89fde1fca6eb9f41c4f0963243d620c995",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-01-23T12:57:06Z",
    "title_canon_sha256": "eb4363f414f99856a2503ebf0b4fbd423f8dd060b5173b6a7d9771552ea17dbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06363",
    "kind": "arxiv",
    "version": 1
  }
}