Public Announcement is an American R&B group, which also joined R. Kelly in 1991 after the R&B artist fired his former group MGM. They teamed with the singer for their collaboration album Born into th
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 0xeae9ce0b1c5e200c00829132ea93f4806c70c94a12e9437e78a060d98db2b76a. 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/e1ace691-1e0c-4429-8779-b732923753e8.json and https://artists.proofprofile.net/proofs/artist/e1ace691-1e0c-4429-8779-b732923753e8.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 0x0b118bb5f9f56005ab3f2f92cb88f60cce0598828a5ba2b2c052e41188a2b31f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USAM19800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850d21aad9e1717483f350e7f6c569672df337e24298644fcbf30655b6c246d3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAM19800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b118bb5f9f56005ab3f2f92cb88f60cce0598828a5ba2b2c052e41188a2b31f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USAM19800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725a98a181dde914897ad6ba9ddc7866eedabc1d8f5910da38c5fcf38dd5ddca. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USAM19800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8df62f8ee1cc099945f68da4dbe0fabf3216042bb9f2dcbd02b590de93e2d97. 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/USAM19800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f56d7afb3cae98283d7f2d38615d42cffc1ace02cdeadd4b0279acbf6a0a43. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USAM19800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fc006ad1bf8b6141e9cb4849a282cf22464c02ae7f80d52268b5a0a17efec4. 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/USAM19800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0d7be2dafd13b670e93487b4010357ca6031d6c9ee509ae3dd47be9367e3ad. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:32:17Z), 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/USAM19800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc52ebe5885a3ced8eed579c2d8fba3c8274ba7484c3273ef4359c32450258a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:10:50Z), 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/USRC10000579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb898972e62f05600382dcc704cd18f8236c7cd96febd01693b8eda70296b2648. 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/USRC10000581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1722bfca00ea5fb0578718f5b92a7917eef86c30acb01c08ce33f0a110d1b349. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USRC10000585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d002e19295b4986fb01c8f3c4fbabc2acbaa08c7825d40f0002368186eacb01. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:52Z), 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/USRC10000589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665f9e13349dfd8b32962270a486e7ea463fc426b27a2e4ef2825e726f23efe. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USJI10300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665f9e13349dfd8b32962270a486e7ea463fc426b27a2e4ef2825e726f23efe. 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/USJI10300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665f9e13349dfd8b32962270a486e7ea463fc426b27a2e4ef2825e726f23efe. 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/USJI10300554.
The Players Club Music From and Inspired by the Motion Picture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925ec75d00f07ef7d626376522fba450c148a76e218d806adef894a3e6bcd9bd. 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/USAE81205884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8392bb99f81a99df80f318ca7bcb2860c5de29c0a6c913914b4326921292cbc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR8GV1920470.
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