Pith Number

pith:5YJIJAIO

pith:2010:5YJIJAIO2V2TYILFXGHU24KD6U

not attested not anchored not stored refs pending

Abundances and density structure of the inner circumstellar ring around SN 1987A

2), (2) Stockholm Observatory, (3) Imperial College London, (4) AAO, 5), (5) Oskar Klein Centre), Claes Fransson (2, Per Groeningsson (2), Peter Lundqvist (2), Peter Meikle (3), Raylee Stathakis (4), Russell Cannon (4) ((1) Tuorla Observatory, Seppo Mattila (1

arxiv:1002.4195 v2 · 2010-02-22 · 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{5YJIJAIO2V2TYILFXGHU24KD6U}

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	2026-05-18T02:08:58.021716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee1284810ed5753c2165b98f4d7143f52d9cb968521836a917fa17abe5a948c6

Aliases

arxiv: 1002.4195 · arxiv_version: 1002.4195v2 · doi: 10.48550/arxiv.1002.4195 · pith_short_12: 5YJIJAIO2V2T · pith_short_16: 5YJIJAIO2V2TYILF · pith_short_8: 5YJIJAIO

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/5YJIJAIO2V2TYILFXGHU24KD6U \
  | 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: ee1284810ed5753c2165b98f4d7143f52d9cb968521836a917fa17abe5a948c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d94f574c4a446d64cc2b26d598e7e74569a35acb7f3b0448d8dadf1941f6552",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-02-22T21:02:23Z",
    "title_canon_sha256": "0e0ed457c447f033e8701335f0e251ecf88cfb7108efcf7740bb981875eb28d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4195",
    "kind": "arxiv",
    "version": 2
  }
}