Pith Number

pith:PKYES5VT

pith:2007:PKYES5VTMDI6AZQLSDIS6ZHKCY

not attested not anchored not stored refs pending

A Keck Spectroscopic Survey of MS1054-03 (z=0.83): Forming the Red Sequence

Daniel D. Kelson, Garth D. Illingworth, John P. Blakeslee, Kim-Vy H. Tran, Marc Postman, Marijn Franx, Pieter van Dokkum

arxiv:astro-ph/0702271 v1 · 2007-02-09 · 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{PKYES5VTMDI6AZQLSDIS6ZHKCY}

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	2026-05-18T04:29:06.616449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab04976b360d1e0660b90d12f64ea1628aba736a56321f1b9fda61c99664726

Aliases

arxiv: astro-ph/0702271 · arxiv_version: astro-ph/0702271v1 · doi: 10.48550/arxiv.astro-ph/0702271 · pith_short_12: PKYES5VTMDI6 · pith_short_16: PKYES5VTMDI6AZQL · pith_short_8: PKYES5VT

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/PKYES5VTMDI6AZQLSDIS6ZHKCY \
  | 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: 7ab04976b360d1e0660b90d12f64ea1628aba736a56321f1b9fda61c99664726

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0b94d9cf27544eec2d6bdce55c63318f5f2b88097d876bc6b0009c066302efc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-09T21:00:11Z",
    "title_canon_sha256": "b2ad3bfb74f220c26ed10e44566c3bac91945524ce0e6fbaf9cc1735645ebc55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702271",
    "kind": "arxiv",
    "version": 1
  }
}