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 0x75fe80180825c00f8bdf4acae88f78c927e8bd9dec49a9b920b070904f742d84. 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/61cb427c-66c6-492f-a71e-7107e344cd52.json and https://artists.proofprofile.net/proofs/artist/61cb427c-66c6-492f-a71e-7107e344cd52.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 0xf75c9e92f7f595b01fb0543c130ebaedcab589e0a4a2829ec529b28da6b859e4. 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/QZWFM2440388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2712d256300320bfb56d8e4d0d34408f433f61571e48c430df5b0206d2aa844d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZTB72467113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2712d256300320bfb56d8e4d0d34408f433f61571e48c430df5b0206d2aa844d. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZTB72467113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a04aaf4dd23bf7d33448bb4cb595a119e10fa143762da81df258fc1a6c7bf2a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZTB82430354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00df01c4075883cff77aa93a2b26314b8771b73540ff956aa021f3ed0f066649. 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/QZHN72423907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b675721f9281fd2a306a49f7ede5fb28388d0bb3effa9c141152da3ae80754e. 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/QZK6M2458680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b53cc97c40605094738cbfd3d039489372881af2968b474084bf5717252144. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHNA2434085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6212fab1ba3b909950ac1f5dcc2d50fb0629f6852ae0c9fb2eec9e8df40abe9f. 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/QZHNA2434086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ccacff95662617302c4012364c4456eaa2143b653b0d994ef28a99c43df194. 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/QZHNA2434087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0443192713bb6ec20b862eb1438ccc67f9219bea0862a6d3217ec23168782520. 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/QZHNA2434088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ee748457317a7a7a06ae2d8a97d0dbc52ee41187c378d8ccdd1168d8976bee. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZES82478294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8408beddf911154392a15116232de201262f188b2856ceb5c15fd4290bacd767. 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/QZES62407479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546c7b4a5e8ad94049524ce6ec29f5b8f2ba4752c736a985ab81fe26ac7ed17a. 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/QZWFL2317944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46df92c1a51b423a5f5ca78ab8fd581d20f54bc7089b6bfe780ac7226cc0f310. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZWFH2363729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a8f9ba9c9ff56c7dc8e0fd929f7b60788b9187aed71292b6e87a97019d0c09. 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/QZTBC2319922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2810dc13371877b0b87bd3d38f6110beef07d7134a3ff47df34abca71983115f. 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/QZTBA2383849.
TEU SONHO É PODER DIZER QUE EU NÃO SEI FAZER ISSO AQUI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bed3aa0734f6920a04615f70a1a5e4c244f71de8c36176dbccaffb98cb875b4. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZTAT2385766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc3a6e7db697386de6f3bf8b3a9f7522d91279409ccbc5e8aec107b2b1ecdaf. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZTAU2390485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b9b4a83dcc59be62e09f2b6d0a5a51630eaa5637158f1b6aacde07878d9377. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZTAY2318584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7190fb82cfd9071be9fb212254385321df8005b77cabfd5e1da5e297f216a2. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZTB32312795.