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 0x799ef08ddacdb884d7418c3b79778464b2a7f1d17a8c3da43f6f48c3aa68f914. 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/6e4ea66d-cbd0-4144-81e5-1d7ab7c51a1b.json and https://artists.proofprofile.net/proofs/artist/6e4ea66d-cbd0-4144-81e5-1d7ab7c51a1b.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 0xf87c400d32efc681781e4a26c2af11ea0975da9485c8ba248a8c02dedc0123e2. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNJY2470948.
Conheci uma Mina no Morro X Pau nas do Job
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98e7f75a2aac28f429ddc06e98a56b53733061c1feebf5fe1ec2d783c4d7aa. 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/ESA112436516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034b8f302d092a7bb1daa0e6c1fc63421417aba9f6891d94041cff6ecd4617aa. 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/BKOMB2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ddb79db9cb3515515b23452d38ba78940328a817375f5c1032bbb46f5452bb. 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/BRBV22300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd6647b47c828410dabc55f08f4d254bc5edf775446043a7d8699a292c9a940. 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/BX4IU2503358.
Chama o Flavin no Wpp X Ih Olha Quem Ta Vindo
Pau nas do Job 2 / Hoje É Difícl Encontrar (feat. DJ REMIZEVOLUTION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51073509e061a373c23083a1b6042a193c07962cdd3c46830bd30ad7e902226. 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/QZMHL2513013.
Toma Vucada X Brechou na B2 Você Vai Tomando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a59d5e4e881add358c41f6e11331103f1f652cd9e6ff7bf8881aec57307de5. 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/QZW9K2493920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc560f95bbacfd725f7bf6dea09391f7cd817d43ce1adae26b8264a23d0dfa8d2. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BKMPR2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8583fa61cb4f1fd3c9b2a01095b71783b9629d67192fe8f114829f9ddb2659. 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/BKOMB2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02960a8e6cd1755981d1f88d9b7ffa68cdf0fcfe75c833f01c1eaa2e38c9df0. 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/BKOMB2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c9bbbebbb852423ab0a4ac943b4603317b7d2d9da7325d7fe33ddae6b1f06e. 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/ESA112445545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f2c4d37268b9516dad96cf4f4c43444f91271543d44cf88bf03e87b4b11163. 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/ES47F2401523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72e03587eb5dcff61d9fa7102c96c96a038151edad09a14c4a251ad70f060da. 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/GXD7V2397050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6480359587729f24a41433ed3ee471fbc89337f07849e76ac6d5ecac1e5f3f. 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/BKFDF2400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94e07497159032264794832c68d3ccdfbdf319a985a50fbf573403b4d0fc156. 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/BC3PG2400359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f24167a425187b3025bbb42b171b6049654afc9e6d5d0d8e49fbb655480f4f. 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/BKOMB2400002.
Oi Vem Naquele Pike de Putaria / no Vapo Vapo Tu Vai Tomando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4d008f7b70fdc6e2811d7e5fe922c82b96920857f6b73d6404d0e6930f7175. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZGLM2407376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7fa97fa72758eb79c72df2cc2684f5b0f6edd09585ce2970c8cb785641dd7d. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BKIRQ2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457dcdb8a9cfda9560bf652f94b280e8c8067453d08be5a60be9f1a2283dd596. 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/BC3PG2330935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee9863341d1ae82b673474e0e53f8b91e7485cdb776b5bb40d5739b02308228. 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/BRSME2500175.
Aquecimento das Meninas X Brazilian Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a28ebe2b948b09960fd43646943adae77e782711ed2b6070f74d87f7665a3. 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/BKOMB2500004.
Aqc Pras Meninas Que Já Tão Alcoolizadas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68060bf6508ee9f708dacd5e1bd6eb26fb4839746688033d1b117668118f4617. 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/BK3BL2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8720910ab75dd576e97a1a3e11ffbbee47d8209857aa33c53e176bc46d48ed. 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/ESA112563431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc794a4f48b560c1577cfc06872b7a91ece537de1c2062bbab9374588e190fb98. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BK9C32500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c2dc1c1ebcd0bb2e7e081a689f9cc412b4ecc610536f69afc792e0096016a3. 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/ESA112573284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1beb706098cbcc43c8077f6d27be2ea5f5a9e1b5f92644dfe1c4b7a54dba13. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNJV2432145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd73669cdc4cef04c56e4c363e5615b3d66e22e01146dadcc89c96cb32921b4c. 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/GXD7G2410880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602043c22c8b523a37f6159dab4cfffc4eb3fa128cf9ac56a136ebb3a24f457e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BKPI82300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc09a2376657a8cc2f9a5dfc4180bb948dd71669ed4ce008559b4d10a090da2c. 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/BKOMB2300001.