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 0xb6b45f93d74df509cd9eb6c803d1eec89ec7b9a505362c3e447142ce8538c78e. 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/54a62ce5-bbc9-43f6-a6c0-ebd562804d4c.json and https://artists.proofprofile.net/proofs/artist/54a62ce5-bbc9-43f6-a6c0-ebd562804d4c.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 0xc5447ad5c8cab3ab8fa552118df16ca0ed5b2bbc9667fb6acda2209108c15158. 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/BKGBR2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d187362445a41d48f0c26d7e985381cebae3b1da3b8fc102e1a054f6b5b5b2b. 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/BKGBR2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88afdf627a26424c3d3434ba09cd894125c0b6861e65fad643f175fb66ef5f6a. 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/BKGBR2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbb2aea7d2cdb38d4808084c1dfd03ba82042ae205a2356462db8b03fbdcef4. 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/BKGBR2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55791102e78eab41d4e874445da8e205540b6ea24ed9dca5d839704a94b47f2f. 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/BKGBR2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42cbe30156f76a30bf956884e236a7a805a19bb406249ed0a249b8c07d8059. 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/BKGBR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6551dba206f3b6220727300cbc22f57ae8a5de8209399a8779faf1db53372f24. 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/BKGBR2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b65b3e9a0b100a5ad326def7a28041c007caf5c1bf6ee2ab136e408c9ca771c. 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/BKGBR2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc490f504b207d21c6432d87315eacf7fdf2fd41344d28b2ba6ef3516f611445d. 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/BKGBR2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeba55f4f5778d52c1830fa8d54e8b8fc9bac227de56bc014f149c58e82d74ef. 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/BKGBR2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59b9a66a34b9b5f398a190e8684c546794b5f2e337a21a175d19f1b6679fd64. 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/BKGBR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f17d983d34bb6cb9b63443b6e0c14b722a60cdd9a87f7f27957bc5c9b9b872. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKGBR2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4177a93d3d478e96ab59c59bb93fb473552ff8c0d2d919882afa9d72a807dd0. 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/BXSSW2300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ef80a2dde33281a2f82d6bf86c3060ec9581f9db227f8bece84704e8472d81. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXSSW2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c2d4af19739ae966b5ee07c7615549ae9fb62319352273a92221bdfcade51. 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/BXSSW2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fc3b1490353aaceb0250970c2699337e113001b3ef0a2dd5ba82df154ef0ff. 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/BRDEP2400236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf767cec808dcba1ef599afc0c515676890066662a95f680a9faf1b7dfbfc508c. 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/BRDEP2400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba9789e08e5068a9939c2bc4df8f6e269dbb8618342abada424d7d8da38f34b. 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/BKGBR2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266ef50c5eba3383131b5c1642c37d052fa3d5431687955e0869be234548b3cf. 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/BKYAO2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9af3735c2aa09ae80387a4462aeb01b3a9a532ffe876f0368f9b1a6ba3a11e. 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/BKYAO2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6260832f9bdb092506e18e6fb73323797191ca59071792de0c23fd6abf1064f4. 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/BCLOU2300001.
sacanagem / sei lá (Ao Vivo em DaFolha Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88afdf627a26424c3d3434ba09cd894125c0b6861e65fad643f175fb66ef5f6a. 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/BKGBR2200003.
Falso Realismo / Por Você (Ao Vivo em Da Folha Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8f34ae12365af81ea78eba892d7d2403601abdefe34706c13b575b4a8adc06. 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/FR59R2212452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff3e59dfc03842a432c6e35dfa5fa20514b883f8ec44301aedbeccb971a2998. 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/FR10S2218675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aebed615d13b737adb1079e665856a339195ef24d7b808d40a2f564cd498fc1. 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/FRX872184025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2f3f46556690995bd6a41eed27b296a13c4a98aebcb98c4a6ed29cf3401ae7. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/FRX282168829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a76d6c9d6879c6a849e626c6ed8f06625b217586a62981847fcc803ade8e6ab. 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/FRX282168830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2083ece09ea239e076e51953ddfa4d4521d8763cce97c9879b51d69607389d8. 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/FRX282123687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9376ebae4a087d46c97fa8758c40d81e25c6e3bb81ff5c501074735d4c845160. 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/FRX202157556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dbe80e79dac76bac5299adf2876aff7f79cf892ef3230d8b8712f86e09f936. 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/FR59R2161426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5eedf366176fdb8154eadeb4f21cf3e33df174e7d42bca9c80a683a8ffaccf. 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/QZFYX2109438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2556b7c506c1bf1ae67e05de52264a0461402177c78ca1199d5134516c46f41b. 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/QZFYX2109439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f462daca0334153344e9e820bacd64aa034f161a725dc4fe91b18500cbf0c68. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZK6P2005138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5b09e0838c64e2403f57a90b19d3fd60f30fd0125bb5b154393ae97719c037. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYX2109441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe258572834b14afe664197a2f4a627e707dc79a3ac149f4108a187c14e547f. 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/QZFYX2109443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfe80a1a9aa980f64daff246ac31f2b9a7a752d6385a4d09c8b0806f607de30. 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/QZMEM2026681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f462daca0334153344e9e820bacd64aa034f161a725dc4fe91b18500cbf0c68. 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/QZK6P2005138.