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 0xa845d7811601fb7a137441246d327227e37b1bd3b9f67303b7c1e4c45c629f9d. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/606330c6-0ef7-45c8-afbd-8708d7ad8a89.json and https://artists.proofprofile.net/proofs/artist/606330c6-0ef7-45c8-afbd-8708d7ad8a89.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 0xf1bf95370ea71b2109c7ece250d52ee1beff34ea2fed830537502ea0a7d27dd3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZP6S2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3c374fe01a8aa1ef317ebda09850d6a599a66bb245ca362eaecaa232cf2d96. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRX762436392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09a7634e1717a9b4e6b9337427feb01854593528b0b24f3aa102039d4ae6d0f. 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/FRX452493506.
Bass Hive: Year 1 - Mixed & Complied by dubbleT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc138b3c4b67c5e6100384886330cc0dd08ea2560ec564b2d2b08b2186858ebca. 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/FRX282134593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9037d451f32d01b33ff7437d65c6d3b789f3042846bcec191854669a0105345. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX282134596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d2c1ede6194a86f95c30a8145e8491b9acb2b454f25061cc4769567ef957f1. 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/FRX282134608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb2c96ea633a864b482ce00e25def1fe1fab70a4d191690690e00abd3c0d5b3. 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/CH7812361193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459709343d9c027fe3901690e03c3e6b4857ef32777f3faf679ce3389b8300e5. 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/GB8KE2306318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa17c8fd7efca2245a03ed685acab9844a285227baab077445a73e3b02ce76f. 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/NL1ZN2302129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2da047908a19aeeb48c5f5269b590e94cbb9eae044522c845720ccb7a83029. 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/NL1ZN2302130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d4ed6b209df708fd501934b8b114d697786f6b22abb47278fa21650ae48fe3. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GB8KE2327478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ec54d47e2574db7248e4d07a6b550eafb01904e3f62b58ffdf2b10f9f146b7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU2198799.
Money Remix - DJ Richelle, Fabian Dubz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf34f8d6d09441d50e2d62f8f2bc219b5054d4267d5652094e92eb2b91d94a40. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKYSF2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c72b16341b2bf5e218421e433238cce3965c593af942c63983fbfc3bb8acb39. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA5KR2072569.
I Wanna Dance (Go!) [feat. MC Kane, Karen B]