Pith Number

pith:S5XHY4PL

pith:2015:S5XHY4PL3ZVM7WEMJ5ESAKNW3W

not attested not anchored not stored refs pending

New Ultraviolet Extinction Curves for Interstellar Dust in M31

Derck L. Massa, Edward L. Fitzpatrick, Geoffrey C. Clayton, Karl D. Gordon, Luciana C. Bianchi, Michael J. Wolff, R. C. Bohlin

arxiv:1510.06983 v1 · 2015-10-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S5XHY4PL3ZVM7WEMJ5ESAKNW3W}

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	2026-05-18T01:24:51.360678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

976e7c71ebde6acfd88c4f492029b6ddb60de97a7ecf6bf8b3e0466acd7635b2

Aliases

arxiv: 1510.06983 · arxiv_version: 1510.06983v1 · doi: 10.48550/arxiv.1510.06983 · pith_short_12: S5XHY4PL3ZVM · pith_short_16: S5XHY4PL3ZVM7WEM · pith_short_8: S5XHY4PL

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/S5XHY4PL3ZVM7WEMJ5ESAKNW3W \
  | 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: 976e7c71ebde6acfd88c4f492029b6ddb60de97a7ecf6bf8b3e0466acd7635b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d50955a2cee724a76b35e26634cee0994c9ee7366c043853a5cadb571a251b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-23T16:26:18Z",
    "title_canon_sha256": "93dbe4d2ccbd65e698ee14687cab86e66cb1c54b029dfc3762d8f4b3a021b2cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06983",
    "kind": "arxiv",
    "version": 1
  }
}