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 0xfff4bb1c29315d4a20a24bac930e7bef9271b626a37b657d87adb12d8a6b6a1d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b4baee5-1b78-4851-80e6-9d3b7f056dd2.json and https://artists.proofprofile.net/proofs/artist/6b4baee5-1b78-4851-80e6-9d3b7f056dd2.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 0x07e07974764953bf41b5160c89afc862c9bfa653c5e7d818f5548e1a235f34d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB2LD1900128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a1d1d351b223cb298f35bc301add8ec85761bc8768fc145065bc663ed58094. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P1924367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480d619385fbd67170b7669594ee4a80410c16d7373d2770288535b628fb28cd. 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/NLF711911191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34bf8380c0fad05d0f45f691874445fe5c719a01447c46b1f315585bfc68884. 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/NLF711906622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6536c35c2b726c484805713a40ad5391701543a5b25f5193ccd3b8f304ee27c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF711901491.
Welcome to the Jungle (feat. Sara Skinner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc849486a5fa837e56e8937248bd28a5b83f3de40259684c100b4f9a19d7d414b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR1909819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1792fd08d7f7a5edcbcf31352128ac43222fe0766d12eabed12ce30ebbbecf6. 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/USDM31900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdef88bb66b2482cc1a5a32fe2c436da474fac9786b22170d9e455763355028b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB2LD1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2280617852cc493f03a6033a64b56f37cb1c91d537fd919354ace27fd65a844. 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/GB2LD1800882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed71b47320ef70e7dd690787f3a3e8b4d3a12c83243295d9da2ad72d21c714. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB2LD1800825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66719f31d96cb1ef8e8371f98b34164634647f65cef254c6498c05220d7cbe5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF711807649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100964a4e479708266d68cd88a24d356fbfdfc775ef06c185970294bdcf637ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADS1881156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5b25df06bdf4508013930cd07773e66a6430a79e86d6a38debd25f1209a9fa. 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/USCGH1370784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d83bb22dc3e7c83908e760862a27646297d84c93403d2d93baab94aa50b6cc6. 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/CA5KR1937246.
By My Side - LZRD & Luis Da Silva VIP Remix
By My Side LZRD & Luis Da Silva VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088d74418c14cafebdc85da3532b76319013578039f10543750e090151791c37. 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/GBKPL2090919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480d619385fbd67170b7669594ee4a80410c16d7373d2770288535b628fb28cd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF711911191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34bf8380c0fad05d0f45f691874445fe5c719a01447c46b1f315585bfc68884. 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/NLF711906622.