Dredg (stylized as dredg) is an American rock band formed in 1993 in Los Gatos, California. The band's lineup consists of vocalist Gavin Hayes, guitarist Mark Engles, bassist Drew Roulette and drummer
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 0xf8e7ba7c4903873166c53e46cbe6d54c5a2bb3e379a27b8ff6402d7b4ff15270. 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/3b01a427-f3ef-4582-ac1d-215693f7a12b.json and https://artists.proofprofile.net/proofs/artist/3b01a427-f3ef-4582-ac1d-215693f7a12b.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 0x40db7f1479da31403434a59899e0d03d6e6fff1e3c8a7e00d34e25500b2572c4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:56:18Z), 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/QZNWR2195510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1fcdc938e6948135ccdf4bef69559ec5dd40d8ad760feb5f1668988b32d87b. 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/QZNWR2195512.
Traversing Through the Arctic Cold We Search for the Spirit of Yuta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b358e274bc2999e528cd200ea9f8ca09f13ddeff4c121c131c09d619d3bb18. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:42:48Z), 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/QZNWR2195513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01cfb2b71204c48f279acfb941535ec974890ef1bb8f9549591be376667f41b. 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/QZNWR2195514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7088fb391ce6603a58ca1b96ce46f2b771a3112400a983af5737f32bb4ee103d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:03:07Z), 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/QZNWR2195515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148e90aa64fbee8862697dad78799268b9244e52857bf58e2a78389f6eb1ddc4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZNWR2195516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57508b1fa6917891aac25f61c0a1dd008f3013da6f12e4c2a464ea04443b6d7a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWR2195517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c7cf6de04d8d0995fe57b7067cc0a8dffc927dfb0fc2113505196c598bf9d4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:05:16Z), 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/USIR10211342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb408012930020df86da1b118065ee6f91d1e0d3a32ea8ee697d568d9f61d73. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/USIR10211355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d6ffc48aeb01031b7882dfbda83c99437ce4b3b8ca60003f3680bf8a291393. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USIR10211347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7e933b695406c6d670d8821b8b8cac0bdef3fb48e47778cc1849bb85cdd634. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USIR10211348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a0c7f483ef66ecafe07a0061eab3a988f8a28ddb8439e864381adecd811b3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:18:11Z), 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/USIR10211349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d51365dd0c92e1d9e33d3225ed18d4e7c272e10e3797a12ce17386ea03cb1d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:30:42Z), 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/USIR10211350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7288a206ba84b730bc34f651cd7026e7229a1b52657f93b8e324b9d7895f8716. 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/USIR10211351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc714ea2f4ae856f9df4be8a80be94546fecb69c46e68468191586f22c72eae64. 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/USIR10211356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ce7ba50918459de8fea02bec38449a81dcd375ff429083d60afd53be95b0b6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:29:34Z), 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/USUM70500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6a4ea6e5aad3b2fc7a2c39554d80c56df49150e0fd741108ff618bbc10f98b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USIR10500652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1376ae25264f2971d34ae338705cd9e4ef9bf92e9ff6a3b8be73cbcd7ed5f2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USIR10500647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47af71ab31396756cadaa3ea8b211f2b049e6165e6c0114f321a72522efeb5df. 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/USIR10500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3db65f8648cb8b3e2b9b4e2572de33d71f477b3e431291fc2188f0b7e9e62e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USIR10500654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd4d50d3ae1221032910cadb0a2635462172ccab354b63250013837529eb028. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:02Z), 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/QZNWQ2241522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f936c33b7b4375d0aaf1f794ead551f06d74e812eb1c2df855862fb023439f7. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/QZNWQ2241523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368cd698d20c7e6374a64973ea01c9760db23e6812a1318e0f0a46a9f0a99713. 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/QZNWQ2241524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd958852970d637633906345de453a99f73ac5a1456b9189220c9c05692803c11. 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/QZNWQ2241525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe479546f7022d6c9793714f17e725613b66e0520241adc1df8763ffbd02e9256. 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/QZNWQ2241529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf640eb524a541a6231b44e81386cfcc77242cd7bfe70f28696675bfba5f52b6e. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZNWQ2241530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b712caa8ac27a3e7a66c9399664a0114797f798e7b780c7f08beea52f56d20d. 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/QZNWQ2241532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e38ba18e83b05f0211a6c0e21e346dbec34256f84a2ba364a6871a47cbd8455. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWQ2241533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf680c693e2b6b27a28947c3264f7c6e36437521d636a2c817bf16e42012178. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNWQ2241534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8380b80b31675ee9a1575fa36b96dbc8371ee63e0da02df26b21ec61e54549f8. 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/QZNWQ2241535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f6e80b00f9d8a4653d572d2e963703cbe94917a86701a88feaade95be18c94. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNWQ2241536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600850d639830498eb67f475e99f4e8d0b5876b35d14042e1edee7e109d3c856. 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/QZNWQ2241537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda54bf534e375d7dc0c258652efbb710f793bbd9c22be0818c62d5c0695e4ee7. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:47:52Z), 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/QZNWQ2241538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e1868f442911b14d30232c243681b4ccfb369aee0ca35746f4a6edbc0d81de. 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/GBDHC1155301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69afd8e1a8da46ce0bc6f8ec5877a34c11198086badf5697a97fd781b1e31170. 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/GBDHC1155302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6893121ef6048aeee874b8866a273437766eb301034d07b420bcede0a0c316a. 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/GBDHC1155303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442a665253bdbcd8fd532c584b02baf6e7c6f0b3b3d7eb17cb769c7b4ec52094. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:21:12Z), 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/GBDHC1155306.
The Thought of Losing You - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe766ea26ea151d7bb71e8adc543b12968957d5269fbc0968559aa723db2fcf04. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBDHC1155307.