Subwoolfer is a British-Norwegian pop trio formed in 2022. Two of the members perform as wolves in black suits with white shirts with distinctive yellow stylized wolf-head masks and yellow gloves and
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 0x6c0eed6735714bb6b0c62e14c7bd6bd3428f2bdccefa96bfc130ec3c1f4b7d9d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb63a077-843e-431c-8dc6-6f81b504d0c9.json and https://artists.proofprofile.net/proofs/artist/fb63a077-843e-431c-8dc6-6f81b504d0c9.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 0x56345f956584ae0cacc51795d6b2cf8e8f4f16b257e898b614d0975ed55572e7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NOUM72200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b309c66e943df20eb550e10ea4372f0669281891446a49b4de28257585a788c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:59:59Z), 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/NOUM72300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8ac2e7614213eccb513f0dfe3c3e288e4328376268da1f7ba3056f0d6adebc. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NOUM72300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd58a356716280bb9e5fb7308235cf7cec6051efa95cda1aec388a96d7eb7ff. 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/NOUM72300480.
Give That Wolf A Banana - Eurovision 2022 - Norway / Karaoke Version
Eurovision Song Contest Turin 2022 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb767fbabfb6018946da4284baa6628b4e03a3e892ed2447010f39aee736cd3e5. 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/DK2DY2200102.
Give That Wolf A Banana - Eurovision 2022 - Norway
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a64002ba1c1d6ff5d75fa3e0162c23690c2f0c42717028199ac8af1ace2e64. 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/NOUM72100322.