Pith Number

pith:W2LVLNH2

pith:2014:W2LVLNH26EZTX3EBGY2FSHBT45

not attested not anchored not stored refs pending

Spin Gap in the Single Spin-1/2 Chain Cuprate Sr$_{1.9}$Ca$_{0.1}$CuO$_3$

A. Revcolevschi, B. B\"uchner, C. Hess, E. M. Br\"uning, F. Hammerath, H.-J. Grafe, N. S. Beesetty, R. Saint-Martin, S. Sanna, Y. Utz

arxiv:1403.2890 v1 · 2014-03-12 · cond-mat.str-el

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

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	2026-05-18T02:51:33.226949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b69755b4faf1333bec813634591c33e77796f94e45620231f5cbc1a3acec7a64

Aliases

arxiv: 1403.2890 · arxiv_version: 1403.2890v1 · doi: 10.48550/arxiv.1403.2890 · pith_short_12: W2LVLNH26EZT · pith_short_16: W2LVLNH26EZTX3EB · pith_short_8: W2LVLNH2

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/W2LVLNH26EZTX3EBGY2FSHBT45 \
  | 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: b69755b4faf1333bec813634591c33e77796f94e45620231f5cbc1a3acec7a64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1f2b2f8ad763defd4a41ecf337ceca1978918019d28b2fb46a39865fe4c791f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2014-03-12T11:36:15Z",
    "title_canon_sha256": "da4712ae67f34abd6170c84a7404f5f2b4f9eed962705d51f8892f55d0a3e3b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.2890",
    "kind": "arxiv",
    "version": 1
  }
}