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 0x7854f11a8b29b1075829aec7415e5fed30d9854e966d18e98020c5b69cfccfc2. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8eac739-fc88-4f51-82da-3f035f7b8958.json and https://artists.proofprofile.net/proofs/artist/f8eac739-fc88-4f51-82da-3f035f7b8958.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 0x5e75349c9010db57abedf18771c452b340d6b9f6ac5a763e1a78dc46718097e2. 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/USAT21800748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578a445711a631afd896655afcb1df679ddc611b4cc13cc759b6009e9444082e. 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/USAT21703411.
Or Nah (feat. The Weeknd, Wiz Khalifa & DJ Mustard) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf698f005cfe391d1ccd59e5d7cbc1254348d9dd486486f489e62cef7caee69. 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/USAT21401391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9a7149812723a1264af83d802c156d92e3962d53b116432d6f0309c62b066. 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/USTB10250031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a7a5016e34923a4207ddd628131d25cfad88de3fcb9859f4a4416a0e3f5649. 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/USEW20100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ccfa956ab20d52314652a0d68c52895eb5d21e95f3433e1fc79e6814e1de31. 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/USAT29901603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081b1ba89a8d2cb1a057c27c5a9918c755208e1e5120d938cf83a0f1c092d56b. 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/USEE19000023.
It's A Shame (My Sister) [feat. True Image]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac10c272aed4f0e2e8b6f77af184c2d90f6230047250795d37a11412f7e0c82. 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/GBAYK9000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f84d0b0ab1e87c29ee7b3a8cdada578aa1270aefea705cad9b34394d283cdc7. 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/USTB10100622.
360 (What Goes Around) - 2006 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1601f24e566931a9ba93d32238ea714639b6bccb2780ddccc323723ff7ad4a8. 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/USEE19200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db90fb9b805ce8cb17e3c6e95ef43c0d6ca77348d4bd64973122aa57cb549ac. 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/USTB10300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1df2cdb0543b9590a95767881663067023ee7f01acfccb149b5aae91e92ec4e. 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/USTB10250018.
If I Could Go! (feat. Lil' Mo & Sacario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8524865581e07796035a0e20512bc28ca22ddc4c2b776dec10a706e68e9ea6ab. 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/USEE10240540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10919e90dac5dacf84021d4877df27f9cbcb16c18e56e75a002bed7cd7eea74e. 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/USAT21701817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764a871bee51d6a936255543d198cbca7fb8d07be8f56ebac0fc55f35d07830. 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/USAT21704166.
Only for the Real Dj: A Premier Selection of Hip Hop Inspired by the Boom Bap Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52597368e8984622b7528ac0550d184004b65a02ef1a6001f1c672f17f19cd95. 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/USI4R1013378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20a18991cbdfd1ee7bca8465778db79e50360aef5c478047b18b2e71c620cf5. 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/USI4R1013383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7149790a56e46ee7ba32f71e02e62b5ba162354194447c9e3bd4c136cd5cd0. 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/USAT21103662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10919e90dac5dacf84021d4877df27f9cbcb16c18e56e75a002bed7cd7eea74e. 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/USAT21701817.
I Love Hip-Hop (Rap from the 90s and 00s)
Legends Recordings Group Presents: "The Foundation"