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 0xe4a42b790dfbf00eeb56b03235a451719f1b57ca14dc02d45346028fde2c1361. 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/82072a3a-52a3-476d-9c72-906fa9e80ccd.json and https://artists.proofprofile.net/proofs/artist/82072a3a-52a3-476d-9c72-906fa9e80ccd.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 0xfeafae868e08ad280f2fd5ede845806b129677fb5a2e8d4b79730211b71d8808. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZHZ42105996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb127b3f5a714bd832aa1a5e0fa0fd99b016d874d6f5123560c9b06fb6ba9dde3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ52107540.
Rap de Sansão: O Homem Mais Forte do Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1915a1a75a640f10c323015a08afc559b7745d6715788a45c5cdc3eee9409dad. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHZ52164299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dff7fff9dbc366998785d647a6387b32fbdc95da6d111bf6e66186d2add403. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHZ52164290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbad8f891ca13c2f599b6327cf5a87243c4375b597f0feaf07548098df317eb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHZ62119337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9c025f6abf2bbf84c6b95ef656739431dba5af80e66c0d6d68639297c02cd9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMZ92139768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d5c8c2b3497ce88e7d0f15065c35d30355b2287a04dd9d534344e63fdba08f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMZ92163055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c65790ba508d8b2059c1356208dd861f9d1447e3811e029202c64bbcf958ee3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJW2118491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf4191048e8ee7b130ab420e199782c418aaec404d4aff698135c5525309a2b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJX2147277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f68faaedc670bed76982946b24f0fe36a4b399421c6210b0239acab0121fe5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJX2172964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf6bf323f6efd2e86a9a64ef31b5b7cea72f7bad47845f82e8053f59f079cd6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTVM2125044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b275789e010d164e85ff8311913296963d0cbb89ee5ceba08f84fbc7f9eb72d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTVM2123751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b23898f5fe17dd328326fc41c258122476806efb25076a5edcd691a3b99803. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZTVM2123293.
O Fim dos Tempos (Rap dos Cavaleiros do Apocalipse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fdf1efa9643af7b272574f13ce3907b96c9676f636d701001cd21a244a00b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHNC2266014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab2943becaea504b821a5a1272f474b4eddf78505d0e25593910ded9538845f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6J2274466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3ea6a0d7905ebb0c09a9e2412d08f187c54b2c390bf2537b819223004f78fa. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZMEM2271265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3f606051a51a7ff8161d145c184631bb632ab0bb937ca1100678292212c131. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2213623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11d52b45363840cdd1f34ee1c23fd4153c56ef86a53bae74347736d6c93bf10. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES92360047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f5bc77172e7fcd2305a1dc9327234228e1da55bcd117dcfda4df9cb9557502. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZTRX2393073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb111f1809febdc841dfbbd9c215337c7d416ec0aef5f9e32f3c17144c8ac81b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2484759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe388ada4d8b745c6a2dac4c5b8687fe5eea20f68b2a845be698d04bd12d6d387. 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/QZTB32266839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd00aba16e34502c6c4855787d1861c637a682046c9dd47ec1a73c694d0dc01f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BC2GV2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4374022f40441d3cc0267414ae831137d5709d5fdfdfa9ebf660ed4a54f1c552. 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/GBWUL2246536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc3915983b4e9c018870fedfc13ca448ff794982f3894b4b9a8dacd2370fc7b. 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/QZWBE2253034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb7d085ff3109ccc553c67ed0db835394d956a298d6491e863eb578a89ca8e4. 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/QZWFR2389755.
O MUNDO PRECISA DE NÓS! - TIME 7 (Boruto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb7813e67b95dd0d770519b8b308a474babdd9ee1fc5c44574591e4d9e055fa. 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/QZHN52268701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0545f5fe36364a40d168ed7664e8004020b1a42ec634fcf72af9d661bea19be. 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/BCIW92285273.
Caçadores de Demônios (O Futuro é Pika) - Demon Hunters (Future is Pika)
Caçadores de Demônios (O Futuro é Pika) [Demon Hunters (Future is Pika)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429d73cacf783ca260b83785ef58f61b7b1177a298a170466e367b3f314e7ffb. 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/QZWBE2276735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0080374a3d7074060052afe97fd9fd6a92da54e6d0ce562fc278e5d81b579c. 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/QZTAS2180746.