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 0xfb31cec52777e635c5aeac36e4438a3e117a69bdd6d9755c69bd36aa7e4b55ee. 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/731092a7-d866-41c8-9732-5be8463c9f9a.json and https://artists.proofprofile.net/proofs/artist/731092a7-d866-41c8-9732-5be8463c9f9a.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 0x796baa95d4f78a820775d3862161c7aa10afa435739c2de435986658a798e81c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJY2499870.
As Piranha da Paropeba Vai Fuder Com a Quadrilha do Rato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a050f16e36ff7b2ef9093d356e3a4377969116c60b6a6eccf85ff791260547. 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/BK2242400739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91825a08b3a3364a934e1be8b3cf5258c19b4ad58f6f32644ab92688578ac8e8. 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/QZNJW2471627.
MTG EU DESCOBRI SEU SEGREDIN 002 (DJ DANIEL SOUZA & MC SABA Remix)
Pode Escolher na Disney (feat. Mc Rkostta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba0a54d7a28812c1210528a532801b9cc1eae355fa163bcbf6cf9d7cf3d560e. 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/QZNJV2473933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15fd29ef15af5217162d5a99ed09bff776f0d0df2ff01966dbd2a7b9f1e11f3. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZGLM2576531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac4ca9dff9ba42a2e8432376ce27c7bced142f6bd40e9f0987f91b3d275cb38. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BX7O92500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a3b0d6620d1621c7bb958534b80963413f0df89a75371f81e83903703f1c7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLM2519663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cf558f02f8433a6470e3684866e9bf0a55417ea805da83745e25db5e0ecbca. 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/BCFYL2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c742fbd0a0e87757039fea681c08fcbe1cacacee8657c59816f62a0d408f6f5. 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/QZN882440038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac91adc06a45e2295d318858a039a3747e87123975df5769e2b9647313d5382. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZZEC2438704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c01ab0974bc58077572781acb575c15df27e18da00ef9863a9097c184d1e4bd. 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/QZZEB2468709.
Foi na Igrejinha Que Eu Liberei a Minha Tcheca pra Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe757cbf9cb19710fa63cf193a2548ef8c7445f4be343bf61cdc124d1a6f38ab6. 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/BCO3K2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8cea38adb5b75a681bcbd51a03daf2a249634f4cf4579f382596b1383a2e7. 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/QZTV32331308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb92c1f79a1ad4546a9de28d04e77cda17903f74a7cbbf62cb23424e5820ab35. 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/BC3PG2303827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82786e6342c7bb5cf531efcd087d25097310f52214c893691feee1ddf949fbc8. 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/BKCFQ2400027.
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 0x6c04695fa27e621d0f22c93b7a099556437ffd3823349f586195f669b9c3b24e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCAPW2300346.