Pith Number

pith:3DFDDL6F

pith:2018:3DFDDL6FB7VFPTHYEGQ5MK5T3J

not attested not anchored not stored refs pending

The Cygnus Loop's Distance, Properties, and Environment Driven Morphology

Ignacio A. Cisneros, John C. Raymond, Kathryn E. Weil, Robert A. Fesen, William P. Blair

arxiv:1809.01713 v2 · 2018-09-05 · astro-ph.HE · 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{3DFDDL6FB7VFPTHYEGQ5MK5T3J}

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	2026-05-18T00:03:45.308542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8ca31afc50fea57ccf821a1d62bb3da5c2648cdd5c7a33992acd7f755e4db31

Aliases

arxiv: 1809.01713 · arxiv_version: 1809.01713v2 · doi: 10.48550/arxiv.1809.01713 · pith_short_12: 3DFDDL6FB7VF · pith_short_16: 3DFDDL6FB7VFPTHY · pith_short_8: 3DFDDL6F

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/3DFDDL6FB7VFPTHYEGQ5MK5T3J \
  | 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: d8ca31afc50fea57ccf821a1d62bb3da5c2648cdd5c7a33992acd7f755e4db31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65be82f675c30fdae1ec6f0c483b04d0eed16b975448850761f9cda981849749",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-09-05T20:07:02Z",
    "title_canon_sha256": "95741a0b84386556932b71006f27c79c2be5c4ffca26fc26e56cf3ffe0a4b536"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01713",
    "kind": "arxiv",
    "version": 2
  }
}