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 0x6bde42f8710bf35370f76f221638fddb0ce317b0fae87e004523c5d58f41a1b7. 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/3177d450-2e53-4242-a78b-e83f3fb8e273.json and https://artists.proofprofile.net/proofs/artist/3177d450-2e53-4242-a78b-e83f3fb8e273.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 0x14a50c7a54eada19606571da5454d56ba228307099d7b4d93e416669e94d8846. 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/QZTVM2449163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2388c8b97f3ce65fb13c4e3c6bf01266d59e0f376bf4308c1aa2ef4a61e649a. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GXD7V2423541.
Toma Toma Vukadão X Toma Que Toma no Bctão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d30e0db0ba9ab44d3d55c1c308c76f8c9e76b1fd547dc5de25ddffea86e779a. 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/BCVK92402237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8715526acaf188a5344004f81a50b4b6f4fb2895d7c58698167a96329f6c7b. 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/QZTVM2436460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6fe0013fbe2cb37c18f7ba91aed5fc1fd449b2a3eaa74f3f9ae7013c75efb2. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/BC3PG2402987.
É Pau nas Bebelas - Deixa o Piruzao Entrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dcf8e3a3ce84e77782560fedbee898735ac0938d2ba1bcd9c4357716ef3bd6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GXD7V2496395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9243abe11c7cf11605f934728ad4882f085bf1cd942a98fe7a2e191114c1a523. 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/AEA3A2492106.
Quer Chapar e Se Divertir Vem Com os Raul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bd85119c8130fe65f95dd9efe67e1c62f40b90dac94ff45023d3309ef81613. 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/QZTVM2421380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84e7216b01c960694303146579fba535e4e5d23ce24ae968b17145601238ff4. 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/AEA3A2391940.
Joga o 40 Po Alto, Ela Sarra nos Bandidão
Jogando Pros Mequetrefe Vs É os Raul Estelionatário
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfea5a0748275c71db773ea24e76ea6a3b51ce2e3d414bf947d892c05170ceb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTPX2464564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9e8ee24ee86a94f0b4a7437e384ab3d6d57fff8da67df14c9863ab8923a5d8. 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/QZTPX2488513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d35bb236efed018f53ece7fd597a59aaa3c4ad4eb16fa259df2c2c8c26ff9ae. 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/AEA3A2431295.
Sentando em Câmera Lenta, Bombardeio na Tchetcheka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3bb983fa476f231517ec7e9805234cdc90c8d6603d4696a202c545bfe2dd26. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNJZ2459999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2edf8520cb27344a2ebe4e63f9104198f23d1eb50c5977e6e9f86ba6eb7c5b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/AEA3A2401942.
Oh Tchu Tchuca - Rebola pra Frente pra Traz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252ddbf1d7a97fc4863642145667caa9afb620159e9e57f4a812bfaac45ec9a4. 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/AEA3A2401853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8788937453dd6fde00ad3d80baeda8bbf46599e4ba0e232afbf2577d6ed34791. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GXD7V2450535.
Vou Dar Porradão na Xota - Mais Que Bum Bum Guloso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9730f8dde6153f754b1647765ee4840372f070e7900de5b40ef471e3daf1ebc4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA112562959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb138f3cfc5056ead940e278b3556a573972197fea5d1d4ddf69633383af58352. 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/BKR2K2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea690b12a551c8351c459efda35c96b32e0254e6d971406f5ef0b36cbf23ee5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BC3PG2500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21308514d4f274deb5fce137a7db71fa24513acf5ea64655fc60a3b625e1013. 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/QZGLM2579709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe4c7e8457cc0c9d37786f12b2f25090a9415f4a1ed8a4a94b101309c7d2e7e. 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/GXBAV2573644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce3b26ac2a0b8bf92aade979c708ac9589c98374d4979e30c7dedfaf8c3bccc. 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/BKIST2500002.
Pode Maltratar Sem Dó Fode Com os Raul Bigode
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95db0e0a87a724d49af21f24c82ccbe0367fca35eeb9795c9793957e5a01ca63. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/BKFUX2301410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cba058dec7338127e1c132cccbb993a25fe249f97fb6de7d253ebb51d4959c. 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/ESA112559923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1101f0b482301584b044d7baea9b48c885871456cae2878a1f562e662472d52. 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/BC3PG2306722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd721bbf3fe4960c93eebbc9a6eb6baf33c2fcfc1d212bb54e0e9d81cdbef6d1e. 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/US3DF2457720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae7aadaa84d5e16521120e90057db9216f4bbcef20c397eb48edeedb9b8bae3. 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/BK2242400655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f559e84966c30e9e533cd258595a70f64a37019dc2c4a47a6bde079c5ccc13e. 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/QZNJX2470000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a08ad1b7fccd3e61922711bc071ec2028062f06bc6cf307b1752df6114d716. 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/QZGLM2443910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199462d726a11981b7f94f2a4c9d9c68c9c2b6fc49aad12653e7902a56c5522b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BC3PG2330897.