Pith Number

pith:WDQGQKVG

pith:2017:WDQGQKVG44O7S6YRFCZKXZIYBB

not attested not anchored not stored refs pending

Fermi LAT observation of VER J2019+407

Miguel Araya, Nissim Fraija

arxiv:1701.01861 v1 · 2017-01-07 · 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{WDQGQKVG44O7S6YRFCZKXZIYBB}

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	2026-05-18T00:53:13.273204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0e0682aa6e71df97b1128b2abe5180842f90499de10f1e89741c738a8186a69

Aliases

arxiv: 1701.01861 · arxiv_version: 1701.01861v1 · doi: 10.48550/arxiv.1701.01861 · pith_short_12: WDQGQKVG44O7 · pith_short_16: WDQGQKVG44O7S6YR · pith_short_8: WDQGQKVG

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/WDQGQKVG44O7S6YRFCZKXZIYBB \
  | 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: b0e0682aa6e71df97b1128b2abe5180842f90499de10f1e89741c738a8186a69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5443b4ba3bc1c5b1b08ebd28010f53345eb67a06941c8c60d6a4887e5f6c8d6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-01-07T17:46:31Z",
    "title_canon_sha256": "4ea338d924a51e8aeedb716dab079b28e36c4108a3f96245afcd6f38918b916b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01861",
    "kind": "arxiv",
    "version": 1
  }
}