Pith Number

pith:C2ZQVNFW

pith:2012:C2ZQVNFWGGROANFEXYOF4PAWCJ

not attested not anchored not stored refs pending

Nucleosynthetic Layers in the Shocked Ejecta of Cassiopeia A

Greg Olmschenk, Haley Gomez, J.D. Smith, Jeonghee Rho, Karl Isensee, Lawrence Rudnick, Takashi Kozasa, Tracey DeLaney, William T. Reach

arxiv:1208.4034 v1 · 2012-08-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C2ZQVNFWGGROANFEXYOF4PAWCJ}

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	2026-05-18T01:55:09.202704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16b30ab4b631a2e034a4be1c5e3c16127bd7c7c204e5f78e75b3bf3daeb5a430

Aliases

arxiv: 1208.4034 · arxiv_version: 1208.4034v1 · doi: 10.48550/arxiv.1208.4034 · pith_short_12: C2ZQVNFWGGRO · pith_short_16: C2ZQVNFWGGROANFE · pith_short_8: C2ZQVNFW

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/C2ZQVNFWGGROANFEXYOF4PAWCJ \
  | 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: 16b30ab4b631a2e034a4be1c5e3c16127bd7c7c204e5f78e75b3bf3daeb5a430

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0821a039366d61f95f18bb6cdde88e4b750da388712a8554bea41e342d3a0398",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-20T15:09:04Z",
    "title_canon_sha256": "b0b1b635e3c326b7e50c8f39a3ca5c0040d476152405ec306ad685abfe294db5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4034",
    "kind": "arxiv",
    "version": 1
  }
}