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 0xf3650e93accc60a4e8a1558812f481e58b3e111c795ae5afebbcc06b09394a4a. 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/5a8ada10-d490-4825-9b63-f3c74ca6426f.json and https://artists.proofprofile.net/proofs/artist/5a8ada10-d490-4825-9b63-f3c74ca6426f.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 0x2d8a9a98ef78ce07e57bc900a9fea817bd2a88f499bf3f63db8be9e8ed1cff2e. 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/GXF9Q2417013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647192c5a5b6dfa4a949e22d7f0a5a02aa7405ae1fee57a6b716d1ef6c12eac5. 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/ESA112561891.
No Claro Vc Me Ver, no Escuro Vc Me Sente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1ca2e578c4eccf8315415f19e1ebc6198d8d0490b8628ce48082493e104be9. 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/ESA112561216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761423768c9871aaed5d4053d952536fbaf430d49d92749bc21e69f898f2d873. 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/ESA112456988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad293453c69f9b12c6e084c5ce23cee10852470deec05ff37a7453055376ad7. 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/ESA112558292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aca150ca62d4783c3e8248fb43c329626b70673f8167dd5a600c1b0405ebb8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BKDU62400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc621409d8f4410c7d9d050dc6a92b8d4cac21fce70b6ffccb31bdc858033baf. 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/ESA112456987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b12d00452323cecae9e123349d24b4598c7342bb4452c9411c59a2f041e24d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BKDU62400139.
Fim de Ano Com as do Job / Coroa X Novinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028261053d1a88e19b6c758e942ad3e5db719af78c5f8fda80f1f5323719397e. 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/BXBXU2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3512cfa62882e48720e44296353ff6c1d13306ac8d2e17e755d89de595b3933b. 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/BXBXU2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1276732839b44be0fb7285443b48a650fa5d8ba36ec14e15667ad0bc0d6796c. 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/BXBXU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be927408ffec251cc6dad9b913d5ed909ee8b44c5517a317b9e6e495413923e. 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/ESA112569229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698c265cb004a08e896210abb09cafe26294b9a9502b582b775e1dab25f24fa9. 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/ESA112564569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c885931c8a28ed6002eff6287cafa2d2ed9da92a3c70abf9f15ce0b428c103f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ESA112563302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ad4ecc8141bed50ca7fa336e2f4ecefc46ca7519283a14c3dd670f6ac21c37. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BCNWM2100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe05b3e895d268a18cb29c598d26a0065a90bbc5c0b03e26d2978dc84a406be. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ESA112444303.
RJ X Tu Gosta de Bater Né Neymar (feat. Mc Nick & Mc Gw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928707f8a29a2f4b61b2f07fd96a7ffe39c1e8addf9549a837e81d211cc11be4. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BCVK92302359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6daca5727a475a252ae645ea5cb927ccddbb606a24d5b1815a4a5cf7e189cf. 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/ES50F2300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982a012a5682781717039812f95e123d1e9b24f27066a0989f4d21243340ad63. 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/ESA112440974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc347cbed04fd62372cf87d1d6216dc48de1db203ef6b7aab83daa41834e566a. 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/ESA112440975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e6e164e5efe2f8c2fa0b2ca3c45830ed32ac7ea2ce264a86a30fe0ac58bd6d. 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/ESA112427401.
Montagem Hipnótica 140 Bpm (feat. Mc Gw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2f1df771e230dc85fe300d29300dac0f9f7a3baaa247a9f3c6319853202efe. 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/ESA112457213.