Sidney King (1885–1972) was an English cricketer. King's batting style is unknown. He was born in Rushden, Northamptonshire. King made his first-class debut for Northamptonshire against Gloucesters
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857a56bebfa6c92b1c6065cad7df3ae795e5277f14e05bdaa094d1080c43930f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b12aedcb-4ea2-4d74-8dea-2f877929ac24.json and https://artists.proofprofile.net/proofs/artist/b12aedcb-4ea2-4d74-8dea-2f877929ac24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e51966cbe5bfbab93b70b651ac100e1ae6bc16cfd35f3fbece271d3fe12c6b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ061300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b95455063954a5c992465c1d5059bb55454f638b020d64b9cf207dba309de28. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ061300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1c26a0dc8567e7b792394d24dbed473a0131a4dc3839e40a78760ee65ce541. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ061300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa83dfd74a5ab3b90c6477a98c043e6a39b902a52e0838850265e08376d7213. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ061500030.
With or Without You - Muranomeetstoka Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e653e74b90f1e69575a3d5e96eb2dd83828da8508df2ef3d65695e533080d0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY201000067.
Wie am ersten Tag (feat. Sam Grade, Koby Funk, Kevin Neon) [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a162465fe1322bbc4a1610ab6d29620dcc2f785ac0de7d62d17637b8d5d54c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY371702172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe0a282a3dbe10c595720a7e040a45d95b8c2665c10c16fb86c552093c009f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZS72100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a162465fe1322bbc4a1610ab6d29620dcc2f785ac0de7d62d17637b8d5d54c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY371702172.