Craig Jamieson Mack (May 10, 1970 – March 12, 2018) was an American rapper. He is best known for his tenure with Bad Boy Records, during which he released his 1994 single "Flava in Ya Ear" (1994), whi
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 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 0x44369776e79c323bedd11e630c7b0023a8ceea4763eca3a4f270bf28d6a4e92c. 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/a7f54074-5b8a-4c93-9efc-c0e72c774f49.json and https://artists.proofprofile.net/proofs/artist/a7f54074-5b8a-4c93-9efc-c0e72c774f49.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 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 0xc3f7a927ac1ddd37189514725a031b7fd4a5df8f2a2faa257244bbd496b948c9. 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/USAT21205581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7415960a49489c0a190c4be21ab8b9b94bc16baac3f224f6e04fc857f713640a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USBB40581296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e71edc8a855fb7fca77d73c58aa14d2d1259958db459b3622abcb2690be534. 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/USBB40581299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f23a39e058c082dc9175ece8437f84035cb768e02357492306c71cabd8b3bf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USAT21402389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc2b26e525a374cdf0784c3085ac82fb1bb282c5d92972b36b5e297425aca0. 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/USVR10300436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e98b350818fcb7d06a5959fd666ec2f9ab78928d11f07d437201afe9efad901. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USVR10300437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c1b6a40481f2d270b1b9b2682da8ee89b8e1f0b79cf836709db3d9253e1858. 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/USVR10300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f26a3bb6364566aa5e6d5b97b5b5c6654a0afa9a5c0eca35b26b3a74b0b41d. 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/USVR10300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf941e61a0683307590d70bc64f2a1826a1be87ed584fed94043cf2b72915c70c. 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/USVR10300444.
Flava In Ya Ear (feat. Notorious B.I.G., L.L. Cool J, Busta Rhymes, and Rampage) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87e62edf1f667605d64df4178de82d191102dd462bc99b0bf18baecf4bf52d7. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USBB40900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb4dcef287816297d70df77ed3f27daf40e641a904baf753f4f43468af2a093. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/TCADG1717568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395ba083dd6712c051c944a5686c4e4cd11b214ad91389dcedf8df0358818e21. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADG1717570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63a70355597828871f75c43423ea984441470a436fdd1bcaac97b9cb1cfcb82. 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/TCADG1717571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd08ad20ff720757ce7b569193fba53ed8752c4ddf353f34a853c2e1b91cac73. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCADG1717581.
Flava in Ya Ear (feat. The Notorious B.I.G., LL Cool J, Busta Rhymes & Rampage) - 2016 Remaster
Bad Boy 20th Anniversary Box Set Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c96f6dd92ea06d4b734ea7281d572330ce4422c77dc7b22fd256e78c0aba760. 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/USRH11603408.
Special Delivery (feat. Ghostface Killah, Keith Murray & Craig Mack) - Remix; 2016 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b578e98e8f2c26819168887c281b3c5637a298d94445d700ec8996965fdb3d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRH11603438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74056c1579681b190cdbf1e3509490b6af06d6462d713af0bf75f50af37edd3a. 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/USBB40581290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74056c1579681b190cdbf1e3509490b6af06d6462d713af0bf75f50af37edd3a. 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/USBB40581290.