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 0x268aeb9c93a5f95dd9bceb45e1d314d312ab63c6fffbaf85eea8398aeb626454. 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/650d2f57-a892-4426-a71f-1a21ec9d2ec4.json and https://artists.proofprofile.net/proofs/artist/650d2f57-a892-4426-a71f-1a21ec9d2ec4.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 0x8447c1b8604a8f8bfd832d3ccc1f0d08b3d8ed9b3d9fcc53691a8e0cea112bba. 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/MXUM62200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08cb65767c8c0626bf4e6b93e8800b13f0cae00f44bb25c23d92df5014315d6. 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/QMFME2319838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd2b8766f42d406be8d6bd001546a901778ddc297be796f07c5e8e2d7182c1d. 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/QZTPX2298330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31ef41f0e112fe74f6c3e115b9c136bdcdb00981bb8166b120a4a7c14a99fd5. 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/QM4TW2370068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc664a81edacee293dd3392a9b6edb6dc15ebcbf89b93b84ae9ed8c64ce7d3aa2. 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/USANG2249249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206a0c4383a3ea18e042b964297f1ed5e54bb0ec8b28d369401f76e978a870ac. 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/QZW9K2200444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c87a9180763273ca1936e98381a8351859125a5c12cb4e9e149353e965b7e96. 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/QM4TW2320843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8a07612283216d27829cee3049d567f6c9aa3e40f12f3f7d29127ab908f511. 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/QMFMG2360241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7792199853414726995a52372f3684d700cf09c22c125ba2b5f0f1ab5ecc40. 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/QZK6M2225285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc8b1836e09f6891fcee5a28f73083bbca0d95cfacb9e5ac1f22ddf02238941. 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/QZMER2289824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6f6fa72aab968580e46bbcb6290b44d8ed5a014eeae20b703000ef9316f599. 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/QM4TW2320716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c8d77846208e230ebb1d6247292adb78011f62a17cb45084ffb18b048c85e8. 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/QM6MZ2408992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1b879812f23f024b94f3700a2abe9682a85acff9728dace4cdcbea60054007. 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/QMBZ92498844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f1b3948c4286ccdd653307920e62f63f54cc0d70bcafe01fe64ecc571861c3. 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/QM7282412529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf966133dbe1c70ff821ed74d8144797d6417e94179654cd9b9aaca379ead73f4. 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/QMDA72438458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c87c11e07c3013b53453170bb41202a1715f849668838630afd7fa09f9a2310. 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/QM4TW2556413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac702fa580ec32ff8f167e761e3b7a83c73b91754757b4235cfdfcd8dc4dfa6. 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/USDXS2401585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77aa347d8d0afc4d8729ac510dbb61cc55c1e132e098a68027fde5e5f53b2af9. 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/MXF602200289.
Tirando Flow Sesh #6 (feat. ND Kobi' & Ritorukai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206a0c4383a3ea18e042b964297f1ed5e54bb0ec8b28d369401f76e978a870ac. 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/QZW9K2200444.
Tirando Flow Sesh #11 (feat. El Bogueto & Ritorukai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6d320334b736521d41d7b5c780e88b964d0f678f99301e3cfe81f1b6a66530. 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/MXF012300784.