Violent Femmes are an American folk punk band from Milwaukee, Wisconsin, United States. The band consists of founding members Gordon Gano (guitar, lead vocals) and Brian Ritchie (bass, backing vocals)
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 0x1649865053aa2e218fe2f17f4b781b5e57145ce06760617cc0a8c8a11e54cdb5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5854f2d8-7151-4153-bd24-6ea10949eb0a.json and https://artists.proofprofile.net/proofs/artist/5854f2d8-7151-4153-bd24-6ea10949eb0a.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 0xaec138d4291c324035421a392e8a5c1d2fe9296b09b7fa8fcf88091551d1f5a0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAAP0000838.
The Crow Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dfd20d8ad14f3eff53ecb05294270e519aa39de0956960fbf5d09b78a59dd1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT20180659.
Born To Rock - 60 Tracks of Classic Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c9e6a67d1cdaa67438e48b70073039f1b78478718460dfcfe7c137ea16235. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAAP1200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5955ed4f04278a91b49664f624f2a85e6045b59fa309b4f5714003a1d85ec2a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBPVV1902709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a39562ceac39495445459c79db17bb238109b99977da25e290f25d94f4a1be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBPVV1902710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220e81e7bc89bbbb895d59c69b29f512f48bffb8a19d8becb45d023f5bf17494. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBPVV1902711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1577967193883ef5e37c49521b050629687f91750c8d3c4b80ab837c7fb394ee. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBPVV1902712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c29e66c9973c21d977f8058b7bcd4260468b17552a9aa332d9cccb4f2f60e35. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBPVV1902713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13463e89ada09559966c0f0d49092adb17a878a180adc87268e23c0ffe09a1d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBPVV1902714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf3ca28a523ce8fc151d3a36aab6cfd97010d0b87df12d306c556328aef0d91. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBPVV1902717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6311318c7fd0d51cc893c4f068591614f04320307934c29c0ac6c02f1999c8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:32:38Z), 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/GBPVV1902716.
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
Gotta Move On (from 'Let's Go Dancing' the songs of Kevn Kinney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbffac7f583f1bb7f370a7b5a5555625cf4ddc67db149952581d7dd3d646051. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCAHB2367859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9eb83e1b107ac65a9bc7cd1b3fe361b377ba4360b91b70ae06a7b5451819e6. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USA560456331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639325efa8c270afb74f4d39cd9f1fdbf3ac84968b9878ed016795407c5b30f7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBPVV1902715.