Pith Number

pith:UOLDORTT

pith:2013:UOLDORTTO3JNEXBIBLYZHY2DHC

not attested not anchored not stored refs pending

The resolved structure of the extragalactic supernova remnant SNR 4449-1

A.P. Lobanov, I. Mart\'i-Vidal, M. Mezcua

arxiv:1309.4013 v2 · 2013-09-16 · astro-ph.HE · astro-ph.CO

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	2026-05-18T03:11:00.132661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a39637467376d2d25c280af193e34338a554cba651be09ac125f94879cab6e5d

Aliases

arxiv: 1309.4013 · arxiv_version: 1309.4013v2 · doi: 10.48550/arxiv.1309.4013 · pith_short_12: UOLDORTTO3JN · pith_short_16: UOLDORTTO3JNEXBI · pith_short_8: UOLDORTT

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/UOLDORTTO3JNEXBIBLYZHY2DHC \
  | 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: a39637467376d2d25c280af193e34338a554cba651be09ac125f94879cab6e5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e367e8910b481af09357aee96f55b25da51753e691af31a2c7331d742f2aa762",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-16T15:59:04Z",
    "title_canon_sha256": "5bd3611f1b7af8961073ad8a14dd17d822c98707b201397191a785f0c697fd0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4013",
    "kind": "arxiv",
    "version": 2
  }
}