Sam Sweeney (born 27 February 1989 in Nottingham) is a multi-instrumental English folk musician. Career Sweeney was introduced to folk music as a child via his parents' record collection and taught h
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 0x8b72b45fae9fddd07afa01d6e0d263f24b3cf0c673a984a0f06adeb566dc9513. 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/ab2aca8a-b4aa-4fdd-b6f5-6655a11979ce.json and https://artists.proofprofile.net/proofs/artist/ab2aca8a-b4aa-4fdd-b6f5-6655a11979ce.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 0xe5857ca79c2a9a9338ecdc05b39aeda3835667b804633b6e5a3ddc18e496f0de. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBUM71801699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c71b0c183a03c549ff9d6b6d86372bba70e4fee5441bfed3ea985fdd35c1ac. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKG3H1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838b9edf0f4393f4ebba995c453bc08dec2e10bf7bcedb60b6b160036fea637d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/UKG3H1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfc9fc22afa08de8ebe8e6cafc17f822bc35b062f4109994a04af64472235e6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/UKG3H1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7145691c2d02dbfaca75f6707502756e620d3939db2c34f1883826a48a6b579. 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/UKG3H1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a7c64389c74d6ecae217cb5e26fb17c52fa8de3c77a7a982cc62a1dbe4e679. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/UKG3H2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03f018343b8a7066de9df3fd871adb562557c0be3b8e5e52a0d61b1669da15a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UKG3H2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1b2a5f9f9c75a9f8dccf79e9810aa9d68e85228daad37c9e72989616681255. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/UKG3H2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e47349b6c145a031360e01ff0e4f523c3f4d32afa695c64d1189a0a55cca3e2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UKG3H2200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f65501a2b4c39306e308406ab3f2487d9af97dfd50b71cf5d2b2329f5bb31f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKG3H2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd537751d7aa9947578e0113a3bfbcab9c5a072bad0b8768c509111026f354fc. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/UKG3H2200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e85b21643eda508a809fed1d24ccfb20200218c70c19ef98e4fb14648443a0a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKG3H2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5601dd0cdce6bb87d479205d664402f51d485ea0f646133dd1c18b6bc0fb7382. 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/UKG3H2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6897c5020da8ff2cda7623bd39776dd25b3048bd8a0b0369cd53a1a985d0d0d2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKG3H2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6669319336cbda2d22cf402877590f9b46ff540da004a81db3d0e5aa1664f1a1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/UKG3H2300029.
Under Gigantic Clouds (Minimal Animal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ad883afb694b5607b274fb920494da68c5c2d0dc4937fe38be1e413ed1376. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBXYY1400024.