Douglas Theodore Pinnick (born September 3, 1950), sometimes stylized as dUg Pinnick or simply dUg, is an American musician best known as the bass guitarist, co-lead vocalist, and songwriter for the 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805ad6a008f2faf57aeab7fdc1ae8e7ebb8598436f991e612fbc4585ccf1e689. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edc82b52-e888-4020-be21-c6512c653db5.json and https://artists.proofprofile.net/proofs/artist/edc82b52-e888-4020-be21-c6512c653db5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Angel / Life is What You Make It / Blind
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 0x42c20d2a7cefb5f4afa1b7f2acce4ff9aaa0213329b7b97fa386fa209468e8dd. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/US3UP2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d81a61dd84a6f6328e88cc3806284234d4e6169508b1a10be2891eea6d53c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6XS1807540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a286e8bad0f774f4cc88ba2be67a015774a8fdf6d42ba40326c4a72e1200055. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QM6XS2400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840baa4f5ef7291f97c096985364dd4cf21158b94f42deb4f370c50823303305. 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/DED831500636.
Temple Of Blues - Influences And Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a286e8bad0f774f4cc88ba2be67a015774a8fdf6d42ba40326c4a72e1200055. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6XS2400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6379a40d64d3ac184b4373b0d03c2c4c9482afaca0a176446d33ba61f0d8ff24. 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/USRY20601038.
We Wish You A Metal Xmas And A Headbanging New Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007fd76ce348a25338c8faf42292c3c5abecfeaf0fbb84fb379f19d5fe18e94f. 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/GBCBR0800207.
Harder & Heavier - '60s British Invasion Goes Metal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777830eca154ed0e8256d2c9f18962dd6f8e6cdbbf85918cc540df5c4514a882. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA371067481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2059fb1921551da03c65930d5414dd2eb1b1f731da509a3a57c58ab80818aa1. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:04:08Z), 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/QM6XS2400095.
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 0x6466d6efb46176fca7a452ed3b8c68d0def94cd7da1ef1e620e9237189272506. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6N21425430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db93d782f1878c1f0cd1acd99184f2a852f1293eed1cbfd16b53f469d339819. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6N21425437.
Metallic Assault - A Tribute to Metallica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19c712dc13f52f657cc77a09af31a5dd02187c837a266dae8b1ed33c30377bb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA370567594.