Pith Number

pith:7PCOW2M2

pith:2014:7PCOW2M2Z6Q6YUYLCEX3HIWGZK

not attested not anchored not stored refs pending

The Nature of ULX Source M101 X-1: Optically Thick Outflow from A Stellar Mass Black Hole

2), (2) Tel Aviv University), Ehud Nakar (2), Rodolfo Barniol Duran (1), Rong-Feng Shen (1, Tsvi Piran (1) ((1) Hebrew University of Jerusalem

arxiv:1411.0681 v2 · 2014-11-03 · 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{7PCOW2M2Z6Q6YUYLCEX3HIWGZK}

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	2026-05-18T02:29:46.929659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbc4eb699acfa1ec530b112fb3a2c6caa6a5d93df7dbfb8aa34cbf821b2cef72

Aliases

arxiv: 1411.0681 · arxiv_version: 1411.0681v2 · doi: 10.48550/arxiv.1411.0681 · pith_short_12: 7PCOW2M2Z6Q6 · pith_short_16: 7PCOW2M2Z6Q6YUYL · pith_short_8: 7PCOW2M2

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/7PCOW2M2Z6Q6YUYLCEX3HIWGZK \
  | 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: fbc4eb699acfa1ec530b112fb3a2c6caa6a5d93df7dbfb8aa34cbf821b2cef72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fec00f58c5b5c42d1249261227ad3dd5ebfd71cf8970cecc19da025f8c5ba591",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-11-03T21:00:12Z",
    "title_canon_sha256": "b2568e7e88d4361b57f6bbe26f7e60c0f85fe41a2e0b47dd59ede452fd45150e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0681",
    "kind": "arxiv",
    "version": 2
  }
}