Pith Number

pith:TTR5YYNT

pith:2011:TTR5YYNT7CJTHXOPUTRTBHT4T7

not attested not anchored not stored refs pending

The Trigonometric Parallax of Cygnus X-1

Jeffrey E. McClintock, Jerome A. Orosz, Lijun Gou, Mark J. Reid, Ramesh Narayan, Ronald A. Remillard

arxiv:1106.3688 v2 · 2011-06-18 · 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{TTR5YYNT7CJTHXOPUTRTBHT4T7}

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	2026-05-18T02:01:35.229159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ce3dc61b3f89333ddcfa4e3309e7c9ff3e206645e3f5f078060de59742c8ea0

Aliases

arxiv: 1106.3688 · arxiv_version: 1106.3688v2 · doi: 10.48550/arxiv.1106.3688 · pith_short_12: TTR5YYNT7CJT · pith_short_16: TTR5YYNT7CJTHXOP · pith_short_8: TTR5YYNT

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/TTR5YYNT7CJTHXOPUTRTBHT4T7 \
  | 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: 9ce3dc61b3f89333ddcfa4e3309e7c9ff3e206645e3f5f078060de59742c8ea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1da2e3e5416f6f08091daeba2ad99e681bd5300b71967e5d22d9e105d6db7ca7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-06-18T21:29:12Z",
    "title_canon_sha256": "81960a125e04f1155d3cedcab5c353efb83088bec2ece8f4a0e8ccc52dbd5671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3688",
    "kind": "arxiv",
    "version": 2
  }
}