Pith Number

pith:5YVXW7O5

pith:2017:5YVXW7O5SNWWYBDRYKFTHUH5LT

not attested not anchored not stored refs pending

Evidence of vacuum birefringence from the polarisation of the optical emission from an Isolated Neutron Star

D. Gonzalez Caniulef (UCL/MSSL), G. Lo Curto (ESO), K. Wu (UCL/MSSL), R. P. Mignani (INAF/IASF, R. Taverna, R. Turolla (U. Padua), S. Zane (UCL/MSSL), University of Zielona Gora), V. Testa (INAF/OAR)

arxiv:1710.08709 v2 · 2017-10-24 · 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{5YVXW7O5SNWWYBDRYKFTHUH5LT}

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	2026-05-18T00:23:21.025215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee2b7b7ddd936d6c0471c28b33d0fd5cef15358876783a33ee77791059208f1a

Aliases

arxiv: 1710.08709 · arxiv_version: 1710.08709v2 · doi: 10.48550/arxiv.1710.08709 · pith_short_12: 5YVXW7O5SNWW · pith_short_16: 5YVXW7O5SNWWYBDR · pith_short_8: 5YVXW7O5

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/5YVXW7O5SNWWYBDRYKFTHUH5LT \
  | 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: ee2b7b7ddd936d6c0471c28b33d0fd5cef15358876783a33ee77791059208f1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bd3c76606c7f8050cfffb0b77788f1109ed84169faab3f3fe216e31e1180cf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-10-24T11:27:48Z",
    "title_canon_sha256": "c641d23a5e802de85f3e34244129c887490722def364d4d81b9bba32ea9fb710"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08709",
    "kind": "arxiv",
    "version": 2
  }
}