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 0x12212ade466a0a4978ce6a10883270fcedf793d2f95036f94c11c4dc405cd53e. 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/097b2207-3d7e-46ab-b6ec-3f2064be2782.json and https://artists.proofprofile.net/proofs/artist/097b2207-3d7e-46ab-b6ec-3f2064be2782.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 0x21c4bf1e17358c95df43eaf85ad640349f77856f94f68d7a0539ba07402d1d6f. 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/QZTV32435116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0e37d34abc67d4897f2d008e2fc015821af39c4881ce6fb74f22ab1d8a5343. 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/QM4TX2290152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f4a94af494310720b36eb6d23ea298b0dffd91495de3af5f450f2bab6a5f26. 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/QZWV32464100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d939618d8dca056e630b847542f1b1373ce1396546d6590200b445e20e0c8. 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/QMFME1972916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38789866977c297a475bfadc2d27c638a596824ce8ed7361d232de43a3b62e7. 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/QMFME1972922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09dbc1bc17668a1edb03a182758ba78f991359af91d55946a6968af516ab5e0. 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/QMFME1972924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e5ac36ad900a8ddd88c02eab6703002fb0ed81c2e9eb53a68c3423aa4215f3. 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/TCAIE2418679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795cc1961c7e2635636dc616687a0f780408215ffb9f143a2aadf20de7999c7b. 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/TCAIE2426509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc24bfebdbe5d23c6fee1c0c0850d1dda1cee75b9103ef3ea5f43ab37bbbdb. 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/TCAIE2418729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab676133cc21af47a14ace8e14e0a3614b2c469982ff8aa94fa023ed9634ecf. 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/QT2SZ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723269c2b5886a6e7de03baab1d4773d8deaf2854c19600e988af0778ecaacc4. 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/QM6MZ2433486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18186280c4ca9223967f71434dbc01d338487dbf936219e9fcab1dd760b7cd6d. 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/QM6MZ2433491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dffc12174dadf76d0624e8b222b20e41e2c4ea830ccb1aefe9f41857644364. 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/QMDA72396840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749c829b191e19a5a70b43994ff0c935507e148f9d6598358a0a49add2a4eca4. 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/QMDA72396844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7894c9bc7311684799c6537b48e9520968979f971da2bbd0807eeacd4bdbc2f7. 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/QMDA72396861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e632a8dd50c7676cc4ddd51790ac6b096b1b31eb7479f074fd005a7e392430. 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/QMDA62168775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ed0907a3df2002c762396b3d7410385c5416326e7b2041d9f12b5763f170ed. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T18:40:52Z), 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/QMPKX1897469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87727a557b2a60b4e2d95868bf9eb6c79c0bad0c202393f413d6d033e6671da. 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/USLZJ2508485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ea5739d6e6bcda22e09900cf0f67e5b755c3b3190ddb0e2d186661b070f67d. 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/QZTLA2529120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20551f01e92c5e51827bc031440d0a1a9b1a38f9f4b2113fddd8eda852f9f8c4. 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/QZZ8B2469002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e362c236d10e6a2d9f7534a999bccc39f79e7134ca04349b6d9f3bc742987a1. 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/QZWV32476329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cb9c71c2a291b1ae1a12fbe9cc44edc7548cf948264cfe47ea29475274f459. 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/TCAIO2465809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a587c36deaef25abd86f581ec3b278f2fb7d5a6dac88fe87ff5f268bfb89ec. 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/TCAIM2426762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795cc1961c7e2635636dc616687a0f780408215ffb9f143a2aadf20de7999c7b. 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/TCAIE2426509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f961ab124ff6e96743d029234d85c64e48a25fbede91b8bddf3665aa221cae8. 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/QMANG2211396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb363a95ce64e3cff61949a1c62bd54ee40273f7f484213a508ea1451a87e75fc. 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/QZ2J21506619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16a606eff03726f55a3c5b8763c742cac09a199f6d06b2e4966949c47d217aa. 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/USA5W2300477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16a606eff03726f55a3c5b8763c742cac09a199f6d06b2e4966949c47d217aa. 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/USA5W2300477.
Frontin feat. Niko Eme, Temperamento, Wolandia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169754df4e2501e361d9bf330c0b82be7a7f0113f011e142c93b192076d439ed. 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/QZ2J21505287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6b85d92b9ed53a676fc58cf89d67b1957161650d11d8bea0d283d3814fc1b1. 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/QM4TX2458752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41830e2e72cfb3209c9f3a9bcb472bf52e5771b8e1a5e72f62d85346b2ecc02d. 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/TCAEI1916732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc2fcd3bbece9e27ea011058b3ff3d4a33032a526d21c7e81c848de329f7d65. 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/QMTND1101727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf335ec46ccc53e2443a806f61e32c3e769a05b0b8f7560a18f5c7d171038459b. 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/QZFYZ2066259.