Pith Number

pith:RPXI7BNM

pith:2008:RPXI7BNMWV2YN2YVVSEBHGWAHY

not attested not anchored not stored refs pending

Dust Extinction in High-z Galaxies with GRB Afterglow Spectroscopy - The 2175{\AA} Feature at z=2.45

(2) ESO, (3) UCSC, 4), (4) Stockholm, (5) U. Oslo), A. C. Andersen (1), \'A. El\'iasd\'ottir (1), A. O. Jaunsen (5) ((1) DARK, C. Ledoux (2), D. Malesani (1), D. Watson (1), J. Hjorth (1), J. P. U. Fynbo (1), J. Sollerman (1, J. X. Prochaska (3), P. M. Vreeswijk (1)

arxiv:0810.2897 v2 · 2008-10-16 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RPXI7BNMWV2YN2YVVSEBHGWAHY}

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	2026-05-18T02:35:14.334017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bee8f85acb57586eb15ac88139ac03e3ebe55d1fac8e7a9c91331f93f0b60c9

Aliases

arxiv: 0810.2897 · arxiv_version: 0810.2897v2 · doi: 10.48550/arxiv.0810.2897 · pith_short_12: RPXI7BNMWV2Y · pith_short_16: RPXI7BNMWV2YN2YV · pith_short_8: RPXI7BNM

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/RPXI7BNMWV2YN2YVVSEBHGWAHY \
  | 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: 8bee8f85acb57586eb15ac88139ac03e3ebe55d1fac8e7a9c91331f93f0b60c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e5e35c2ae848db4ce2384c1e9eba32549919b551d9f74469f184a25bf320ccc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-16T12:31:59Z",
    "title_canon_sha256": "0a3ce5bb5f317fc198d751195da17c496f43baa5318bf6934ae5f02dc6151955"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.2897",
    "kind": "arxiv",
    "version": 2
  }
}