Pith Number

pith:NUMVPPXK

pith:2017:NUMVPPXKPN6JXPFMVIDRR6B2XB

not attested not anchored not stored refs pending

Extremely late photometry of SN~2011fe

A. Jerkstrand, A. J. Ruiter, C. Fransson, C. McCully, I. Seitenzahl, J. Spyromilio, K. S. Long, S. Taubenberger, W.E. Kerzendorf

arxiv:1706.01460 v2 · 2017-06-05 · 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	2026-05-18T00:33:17.687487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d1957beea7b7c9bbcacaa0718f83ab84223c44f65dfb9b7219190c85357483c

Aliases

arxiv: 1706.01460 · arxiv_version: 1706.01460v2 · doi: 10.48550/arxiv.1706.01460 · pith_short_12: NUMVPPXKPN6J · pith_short_16: NUMVPPXKPN6JXPFM · pith_short_8: NUMVPPXK

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/NUMVPPXKPN6JXPFMVIDRR6B2XB \
  | 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: 6d1957beea7b7c9bbcacaa0718f83ab84223c44f65dfb9b7219190c85357483c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a01827e621f1276293dd4ffbbc770b148596dfff261096c9a670a6c163dfd7d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-06-05T18:00:00Z",
    "title_canon_sha256": "de0fb4b57f644785a261f923ba032facb4257c03fafeb385068483fd00a7e7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.01460",
    "kind": "arxiv",
    "version": 2
  }
}