Pith Number

pith:VEIESZR4

pith:2012:VEIESZR4CQQ7AE3M3APGXIJSQG

not attested not anchored not stored refs pending

The properties of the 2175AA extinction feature discovered in GRB afterglows

2), (2) LAM, 3), (3) MPI, (4) Univ. of Iceland (5) Univ. of California), Adam N. Morgan (6), Ardis Eliasdottir (1), Christina C. Thone (5), Daniel A. Perley (6), Darach Watson (1), Giorgos Leloudas (1), Jochen Greiner (3) ((1) DARK, Johan P. U. Fynbo (1), Joshua Bloom (6), Pall Jakobsson (4), Patricia Schady (3), Tayyaba Zafar (1, Thomas Kruhler (1

arxiv:1205.0387 v1 · 2012-05-02 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEIESZR4CQQ7AE3M3APGXIJSQG}

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	2026-05-18T03:53:31.321523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a91049663c1421f0136cd81e6ba13281806a7322af85e4b70feab2bc7a6c121f

Aliases

arxiv: 1205.0387 · arxiv_version: 1205.0387v1 · doi: 10.48550/arxiv.1205.0387 · pith_short_12: VEIESZR4CQQ7 · pith_short_16: VEIESZR4CQQ7AE3M · pith_short_8: VEIESZR4

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/VEIESZR4CQQ7AE3M3APGXIJSQG \
  | 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: a91049663c1421f0136cd81e6ba13281806a7322af85e4b70feab2bc7a6c121f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "661379621edcb329179df9b3ee6c516f10e02114041b294c0586b6af90241408",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-02T11:35:55Z",
    "title_canon_sha256": "c6bcdcb63cb7962a1a49d8150e8616e74e12a065e26942bf2e2b87198e391a65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0387",
    "kind": "arxiv",
    "version": 1
  }
}