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 0xfbf298dc9769011bf05e9bd13e976995f77a31aea60c3ae85b950f335401d040. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77c0ce5b-09a5-42c3-8efa-ceb311a2e622.json and https://artists.proofprofile.net/proofs/artist/77c0ce5b-09a5-42c3-8efa-ceb311a2e622.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 0xc7a7450c292277fa71d626c5050fe2ce4cdd493c7bf810a6bf62afe5633a88fb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/KRB462200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612fa299121ef38b0919233f2e94e60b28623e71afae48b69e9493769abd153f. 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/KRB462200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b15488a96266f1fba4b1a9730faadfbdf7f65e2f51cd7198aa3c6b6dcafe09e. 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/KRB462200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4357e11852b3e6b600897b6979d620f172f1ad20ff11ceb8df05df4880a8c083. 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/KRB462200073.
Raindrop, Cloud, Typhoon & The Sun (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1575f1d26e805418b6fe045bcbf041eb78b6169d70c68983f2a3c755c00b0e40. 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/KRA302400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc171060e7a4b2ed38802b7d3743aa104b1ea66fe87cd2144b4c6ce9223e36bd7. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/KRA302400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa9bec010ca91e2001439191a284d041900151294383ad3578a9ad7f73ec0e2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/KRMIM2213607.
Raindrop, Cloud, Typhoon & The Sun (Eze Moa Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d729973e3e25ef86a1062a5531f0445f1e9cc4886fdfb8f80003f5cd16e0dd0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/KRB911312121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35593a0c7b6600154c30f417e41c22159876932046ed1835e4a2b5a58bbfa883. 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/KRB911312122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce9afa91ecd3439f9700b5b5f05fc93b47927e0c2508fea309f5a7439f2580f. 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/KRB911312123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b67b334563534fe909692313833fc0ab57ad9dca6bc950e9f2129eb28839b06. 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/KRB911312124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e0ba4a2781def8a146134c73126b3e0b6b88de85ffd39277f1d0e66e148a88. 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/KRB911312125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2a6312091aff5e18e62c98c6337b070e92cec390f82d37a75a543872c21890. 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/UK6821400618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b88ce86777b12d1f7c7e205f21e6c6318bb86d1496f9295bbada74db49a6743. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/UK6821400619.
3 Little Wacks – YOUNG,GIFTED&WACK 3rd Anniversary Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfc89c5d4318c5a2c4ef1205b6110d095e67d534ae2e1425aac513683d98f49. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UK6821400529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070fa09fff092f16a127bdb4864427cbe58409a726647a2b73858584f37487c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UK6821400531.