Pith Number

pith:YYW4OWQG

pith:2016:YYW4OWQGCLLBE3BYEBR6KDGI7R

not attested not anchored not stored refs pending

Fermi-LAT Observations of the LIGO event GW150914

Fermi-LAT Collaboration

arxiv:1602.04488 v2 · 2016-02-14 · 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{YYW4OWQGCLLBE3BYEBR6KDGI7R}

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	2026-05-18T01:13:15.313774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62dc75a0612d6126c382063e50cc8fc5cc21c7988f6298ebd4f1ed11ef890d6

Aliases

arxiv: 1602.04488 · arxiv_version: 1602.04488v2 · doi: 10.48550/arxiv.1602.04488 · pith_short_12: YYW4OWQGCLLB · pith_short_16: YYW4OWQGCLLBE3BY · pith_short_8: YYW4OWQG

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/YYW4OWQGCLLBE3BYEBR6KDGI7R \
  | 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: c62dc75a0612d6126c382063e50cc8fc5cc21c7988f6298ebd4f1ed11ef890d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2df124653f538c7fb4e1e3cfc69021381aea8b66e27a5e14fa436ff43eb4c096",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-02-14T19:20:02Z",
    "title_canon_sha256": "35e14436961565ce98091da9aec0b03c881d28f75b67d7eb46eba57bfca91815"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04488",
    "kind": "arxiv",
    "version": 2
  }
}