Pith Number

pith:TKWHHF7P

pith:2019:TKWHHF7PRW3P2WN4QW7OCIJ24E

not attested not anchored not stored refs pending

SOFIA Far-infrared [O III] and [O I] Observations of Dense CO-knots in the Supernova Remnant Cassiopeia A: Multi-phase Ejecta

Alexander Tielens, Dario Fadda, Isabelle Cherchneff, Jeonghee Rho, John Black, Olivier Berne, Sebastien Muller, Sofia Wallstrom

arxiv:1906.02380 v1 · 2019-06-06 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TKWHHF7PRW3P2WN4QW7OCIJ24E}

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	2026-05-17T23:44:01.392092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aac7397ef8db6fd59bc85bee1213ae1152b2354cd2dbb500bd99de8187007b6

Aliases

arxiv: 1906.02380 · arxiv_version: 1906.02380v1 · doi: 10.48550/arxiv.1906.02380 · pith_short_12: TKWHHF7PRW3P · pith_short_16: TKWHHF7PRW3P2WN4 · pith_short_8: TKWHHF7P

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/TKWHHF7PRW3P2WN4QW7OCIJ24E \
  | 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: 9aac7397ef8db6fd59bc85bee1213ae1152b2354cd2dbb500bd99de8187007b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee173e8c822f37cd4dda71884ee212ea43e566c4faee2c16d9149187aa62eafb",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-06T01:53:29Z",
    "title_canon_sha256": "57b4d37757632d1a6a496f59b2f1dbd189b2e6c37ae364f4aeb22560cc0f2421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02380",
    "kind": "arxiv",
    "version": 1
  }
}