The DCG Brothers are an American hip hop duo based in Chicago, Illinois, USA. The group is made up of two brothers, known by their stage names DCG Shun and DCG BSavv. The initials "DCG" in their name
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 0xb519abdec281e89b16bef435a238a45e9c9b4d69a7be5832b01b7692cc79b3d7. 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/ce5e5a91-acf3-404d-908b-3a02a52130fc.json and https://artists.proofprofile.net/proofs/artist/ce5e5a91-acf3-404d-908b-3a02a52130fc.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 0xcd1d62330a06e6d4598946cd64ad4a32da860ee97240b2319cfd667bceab8d42. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USAT22007052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5dc1a297e984d5e67913c6b66748a287afd0c3b5a7e089866650993a59cc0e. 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/USAT22007050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3805de41df07c6116eeab4b06c6c0d508d1d6be92a0e489c3fa5ded4aa99025. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:35:00Z), 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/USAT22100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacb557bb463c91ef5e0f8f1cce4b805bc778166fe24988f35f072a5539169dc. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/USAT22007695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88bf3302e60c9b1899a377b54fa66f49a9306cb8faa93d3f25e5b6691587e38. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USAT22201150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf1e7854aa94f6913fc2ce8a1993242506386eed68ee6ea18a87c37145eff10. 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/USAT22202143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8eb27f62ea0c26eba6cc6c64a820cffa1f4133b91352a3f66423779c86dc8c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USAT22202418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b933e50cbffab458d8daa2c587dfb665fa02bf962428a07557040030c5b0ab5. 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/USAT22101942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4b5d12dfdb159eee8d5bfab2a8cdbcda5fb5b412be830b48b3bf3428e98059. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USAT22202421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1378f32efd3299a16c216f32b1df02d23e8d68cb36fdf21c80c1e065b3228bd0. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USAT22101024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb4909013e8b318a9ad2dbcc5565caa590333ce94d216ca8e0ce8d65a40afa8. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USAT22104911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e28e258ae5236b506e80d0aeaf4c7a7240bb3447395778771ca4aac1c3fba9. 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/USAT22208399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54b57655a7d145cca4e5dbb675c0d0b1dda7b94bc657a08c11eda1a10d59e9e. 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/USAT22213541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04284b9383d37024a18a3e8fb904cd7eb7cccac3c7a2e47c078bc7c0082e8553. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USAT22216878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4536c4475f03e54a14ea4b73c1182c21c0dfd8da58eda6c74d9da81d98a909be. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USAT22222157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a57aaef0cb7aa9808467492e7d981f9cbc9032a7366c605c7b69bec2ad7f02. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USAT22301457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6a4fc1fefdca6559121cd43b4fd94e86ca4d1a8de9078888c3043de1a2780d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USAT22303683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac719b9496ed0765c8c79a126021373e5f894141366243f5c29915ecd16e3211. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USAT22306545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803a654dc5ef0b1e3ff14039fb9dde6adcf31a93b9f303139ed835e4e640dbbd. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USAT22308135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831d6c2e5504faeaa358f3ebf06066ede3d6d1b24f8ade685e1e1fbb0be29ff9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USLD91760809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa246466d43f5526a8569f7350f3fc17fe4fb0dd4259dae937c69751d9d40235c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USLD91761583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6f384d0c119726a46fde60586344a30a9905aa7cfde82e53ee08d2db35e85c. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:04:52Z), 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/USLD91775791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f22aa65d3ab07c954cc97bacb1e20ea7a6fec159d13b41abcf1052c0c61e56e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USLD91775792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d87e7a325c2264f9c35241fa156353dd242af647cb722123cef9c59dd5acff3. 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/USLD91772258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe8dae4f9500a1629171badbcec1279e94c4c18deed5d436e5a41eb45c3a74a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USLD91775793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a10727c758f9aa5ed0ffaae3a6e4cb584b63fe1d50f205bed5d75f93bb1ed9. 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/QMPTL2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1260b70f06e0ae513da7197f704a1df9439e7072832016bd29cec5a6aa3b84b0. 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/QZMER2253644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6faa41dde427b53170120e67c0ae58dc585ea86ae204f09b6eeda1b06db88e6. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/CH7811107905.
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 0x1ad0fe352b549edd3a61600d37ed38c309a7b84c33476f16def1aba8deb52e39. 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/QZGYN2301674.