Pith Number

pith:EEIT73LH

pith:2015:EEIT73LHNA7WR4FYWYLHV7SVRI

not attested not anchored not stored refs pending

A new period of activity in the core of NGC660

Ilse van Bemmel, Megan Argo, Robert Beswick, Sam Connolly

arxiv:1507.01781 v1 · 2015-07-07 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEIT73LHNA7WR4FYWYLHV7SVRI}

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	2026-05-18T01:35:44.680627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21113fed67683f68f0b8b6167afe558a380ca6526d7085c7ed1f70dd900e6f3c

Aliases

arxiv: 1507.01781 · arxiv_version: 1507.01781v1 · doi: 10.48550/arxiv.1507.01781 · pith_short_12: EEIT73LHNA7W · pith_short_16: EEIT73LHNA7WR4FY · pith_short_8: EEIT73LH

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/EEIT73LHNA7WR4FYWYLHV7SVRI \
  | 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: 21113fed67683f68f0b8b6167afe558a380ca6526d7085c7ed1f70dd900e6f3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80161f916d440fb8fb383906ce73288c4365a4784066b6ccb987270a47a1c2f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-07T12:37:48Z",
    "title_canon_sha256": "bf029f01cd2ca2bcc136facb21728c7c0952f3522abe0bcab4a406a82aa16eed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01781",
    "kind": "arxiv",
    "version": 1
  }
}