Pith Number

pith:7KY5ECBQ

pith:2012:7KY5ECBQMBFQFWT2PFNFVLNSIX

not attested not anchored not stored refs pending

The extremely long period X-ray source in a young supernova remnant: a Thorne-Zytkow Object descendant?

E. P. J. van den Heuvel, G. J. Qiao, J. L. Han, R. X. Xu, X. D. Li, X. W. Liu, Z. W. Han

arxiv:1207.4687 v4 · 2012-07-19 · 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{7KY5ECBQMBFQFWT2PFNFVLNSIX}

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	2026-05-18T01:56:16.235716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fab1d20830604b02da7a795a5aadb245de719d6af409a27d6e8b71cae662093a

Aliases

arxiv: 1207.4687 · arxiv_version: 1207.4687v4 · doi: 10.48550/arxiv.1207.4687 · pith_short_12: 7KY5ECBQMBFQ · pith_short_16: 7KY5ECBQMBFQFWT2 · pith_short_8: 7KY5ECBQ

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/7KY5ECBQMBFQFWT2PFNFVLNSIX \
  | 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: fab1d20830604b02da7a795a5aadb245de719d6af409a27d6e8b71cae662093a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca5b33bc47e560740041b1a6a3df031a44852cd62b1ec405a1cca8ba5990c54f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-07-19T14:32:03Z",
    "title_canon_sha256": "17662083966e9db129f76db91b7f3718d3b6ba93160e1282c6fc362ca9ad303b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4687",
    "kind": "arxiv",
    "version": 4
  }
}