Lo-Key? is an American hip hop/R&B group that formed in Kansas City, Missouri and Minneapolis, Minnesota. Their single, "I Got a Thang 4 Ya!" (1993), reached No. 1 on the Billboard Hot R&B Singles cha
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 0x37b9b12eabddc7980c7fa070e9b64a9a1c34a63a164ff58cd6b337decc93900d. 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/ba79b52d-12a1-47ad-8c3d-4460ed27ac9e.json and https://artists.proofprofile.net/proofs/artist/ba79b52d-12a1-47ad-8c3d-4460ed27ac9e.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 0xcf9b8630ce45d370f72923836f98c6061b7d5280c9e033262cda20b2aa119674. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USPR39104445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0df31980ae8f99586f133e774dbea9d9d35771c9523502e036e6359bcef4070. 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/USUR19700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1620cc8b198f36cf2d23f2cd493e3e057b0c818f07c06412a06a22dea92d97. 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/USMC19959137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9803e0ec2d839d826469bbbf681cd6bbe2b6b5dd59a6e545cd2134d35fc14627. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAM19500792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeea9740ebbb478479ad0a0e62efbc0de2fbc2713f7253f8567be594f778f94. 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/USMO19985040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9534f1f20c418d3812a4f93c5dcaf3c3f4df1d34baa513405ac29864fcb8c607. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAM19400376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba986b5f15ca9a0cf1d5a30b6311366a32a2a05783a04b320d1f4fecfbb15dec. 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/USAM19400378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5dd40433966f6d23c36a0d47e0b86e122de1ee39ee3f18b791a93b83164291. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAM19400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da21d9e63a8d67cf573f1761035edc0483b2f12ae8972e95164e7950fefa566. 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/USUM71913597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098153f344bc1aeb49f4042f7adb6f59080a16eac5ad63a48b8d69be16af5265. 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/USAM19400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1a0594f77f4355f31110d74d674cd35aacfa0be7ca8e9b550c00924d700537. 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/USAM19400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8015e30ab77d82fa351715d7735b92b510e1db01b4e9529bbfc369e8c20bbae. 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/USAM19400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1109e9801b6831e05f69d1e952d0ca17f0b247c64043a108105666f91922b32. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAM19400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47de5dc4d2226f1ebc209e4be921248b465d42d25ed7e1a6862561fd95dffa6d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:45Z), 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/USAM19400379.
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 0x6a8ed7251a593fefc9e68aa384de5e4824d75df25d3c49bf8e79ec4c4fa4bf39. 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/USAM19400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4432cdaa85845018fd7652edc4b5bf4673836fa50af785dc881e2929b066f27c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USAM19400374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c80cde4dad5977e644da4d83e0c0e9d4ef33754c4ff75128d230f0d8b5eafb9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USAM19400375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a42086817046dc1b09809984a772f1da93b582ba68d486e0d283b97d7c79d5. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USAM19400377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56798da132d48388c8c9041cca479bce74e56287a5b5c7665d3eaba5915c77ac. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USAM19400384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c13636a6c3ed478c65518c25eda2a8f6f07be8593215f336591500f9daba74. 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/USUM71914166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ed2e0a38bd4809c699a9dfe88c1c9de83f8e93d8c1ca1f16fcc23aff45d693. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUM71914172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdc0088465ff595504174f08c742002b2e0eed7fa0fc86c9b2556dff8e3bd70. 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/USUM71914173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed52dba9f4e964479347b32f5fb2273cad55b46b5e464b1c0d4ce39ce317635. 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/USUM71914174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951188fc8963facefbebb7b87e0531067aa3d98594393b8d9b3241191e02de4d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUM71914177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed06dfde12bb4c86162f20e7aa9a147ad157d7bd51e43e618ca2c6a80b088d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUM71914179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600aff82f58108ec7f92dc003656232e56639bf2910e5aa7960191a0decb74fd. 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/USUM71914180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd995975e58fff5bbce21e55632fba8383de0d8745c7c043b7bb0be9bad26772d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUM71914181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e3403a9e2e19a83d33c100b79863f260e9de548422c8cfb9faa20e60fd724b. 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/USUM71914182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738278765c046151897568309e74c96febdb27af46497eba646a3dee11908fca. 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/USUM71914183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628f914e394a90e5ff2fb13cc3eb16d7b996da70012c9059e8652c92252af20a. 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/USUM71914184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623439f9ac3178ea6c801d53d49be98e5e3b182f838ff4616feb26caf553a848. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUM71914185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48224acb3bed425c30f02b3b0d5f5f2a7b27f5c25a3241fd1b5058d837ad57b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUM71914187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a4084742bb4c48ba0c2cc556b6bdf2400fb9b63fb2144a68329703d12c80a5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:31:04Z), 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/USUM71914175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e4101b6218d7d0dc152fb417fb42b0740c5c3fcb83a76bc5f2eeaaec921913. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USUM71914152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77a9eab1f8d73aa14bbeb2ab4b4a01e9c1b1716a4202fd55f84a62ee5dca42e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USUM71914190.