Pith Number

pith:PLXDBV77

pith:2015:PLXDBV77JWIV72PM4UIUVKGOOB

not attested not anchored not stored refs pending

The nature of the companion star in Circinus X-1

Helen M. Johnston, Joel Gibson, Roberto Soria

arxiv:1511.03701 v1 · 2015-11-11 · astro-ph.SR · 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{PLXDBV77JWIV72PM4UIUVKGOOB}

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	2026-05-18T01:23:54.275421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aee30d7ff4d915fe9ece5114aa8ce70688819d3d796f301b8e27ce5d003bed4

Aliases

arxiv: 1511.03701 · arxiv_version: 1511.03701v1 · doi: 10.48550/arxiv.1511.03701 · pith_short_12: PLXDBV77JWIV · pith_short_16: PLXDBV77JWIV72PM · pith_short_8: PLXDBV77

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/PLXDBV77JWIV72PM4UIUVKGOOB \
  | 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: 7aee30d7ff4d915fe9ece5114aa8ce70688819d3d796f301b8e27ce5d003bed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff35c3cc0e0d0c9e6f0c3ac6088692b602a77189bbdef43bf3e45ef260872309",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-11T21:52:49Z",
    "title_canon_sha256": "f4eaf0a97779d92dad03bf521bcb41fe680dfcc63c0b14b888c1254dff9c87a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03701",
    "kind": "arxiv",
    "version": 1
  }
}