Silver Cup is an indie pop band originally from Salt Lake City, Utah. The group began in 2019 in the Nelsons' basement, releasing their first single in November of that year, and performed live for th
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03292dd932f33d94374b8fc7c30da37658801439d99bd71325546536b8a7862. 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/e069dbfc-27d9-4cbe-84ac-f5e44891047f.json and https://artists.proofprofile.net/proofs/artist/e069dbfc-27d9-4cbe-84ac-f5e44891047f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6aac4355dc6b1839d378a761796f8a7b74c0b2d396784b0c820f8a84413fb0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ93L2043958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b212cb357c0cdbdd55d1421c1a0ca17035f991f63620bc46dcc04ad30d31ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKPL2143427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fe3a2dc545711eb27f6ce3292327c533ff4144c342828415e3ce704bfd4bba. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GBKPL2155885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68641139589315287d4751fecbabac51dccda3ddbbf16de8ec25e4081a4fe80. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:17Z), 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/GBKPL2164103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51919cc68025e741449e2fe9fbcddaa1290e1f110cccc822110c0f76c25581cf. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:28Z), 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/QZK6L2216571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc52a30d25a07c2a751b138fdb9f8d6e359a59a707ff65c92894c4d0a01fea6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USA2P2312468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dca1624078d431a230207b3838fd8f1b0ba036d8b8306c266c65d5d23f32df. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ8GX1701863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa437f685a3bef7761a1ac6bc089ae20a2eeb1eece6e85a5ea5d1eb22c702a48. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ8GX1701753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496a87f084190fe70ab4a4e7ce7717d6d553a00dded19d2d7bac2d92f6997c71. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:33:33Z), 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/QZTLA2488068.