Pith Number

pith:W325HZM3

pith:2016:W325HZM3W6CP6JLRBCUEDC5MMJ

not attested not anchored not stored refs pending

Dissecting a SN impostor's circumstellar medium: MUSEing about the SHAPE of eta Car's outer ejecta

A. Mehner, C. Martayan, D. Baade, F.P.A. Vogt, F. Selman, H.M.J. Boffin, J.H. Groh, K. Davidson, R.D. Oudmaijer, R.M. Humphreys, T. Rivinius, W.J. de Wit, W. Steffen

arxiv:1610.01688 v1 · 2016-10-05 · astro-ph.SR

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

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	2026-05-18T00:58:56.477850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f5d3e59bb784ff257108a8418bac6260b371f0bb68e07abf7b5d4575218baf

Aliases

arxiv: 1610.01688 · arxiv_version: 1610.01688v1 · doi: 10.48550/arxiv.1610.01688 · pith_short_12: W325HZM3W6CP · pith_short_16: W325HZM3W6CP6JLR · pith_short_8: W325HZM3

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/W325HZM3W6CP6JLRBCUEDC5MMJ \
  | 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: b6f5d3e59bb784ff257108a8418bac6260b371f0bb68e07abf7b5d4575218baf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2496d1392e49cd9a7782e49f924dedee707d8fe4537c3c00660af0b60f5859ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-10-05T23:43:40Z",
    "title_canon_sha256": "caa36ab11e57fa4dc5c929dfab0bab68fefb537d4b0454c3234e353bc6249c0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.01688",
    "kind": "arxiv",
    "version": 1
  }
}