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 0x58bacce19f9593a6c6365bf7907fd7431907c1dc2ae175e89532672b50adab92. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53ef1a54-dded-4747-9b6a-5febb35be8e1.json and https://artists.proofprofile.net/proofs/artist/53ef1a54-dded-4747-9b6a-5febb35be8e1.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 0x313d8c0b0c7fe3807c4f451a7865077180fffe827144cf8728ee30e842fe1dce. 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/BXUGU1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd31c10cb9dd46cde8c7fa074e5c431b13b91d659f1a96de8ba3b94f345a0cef. 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/BXUGU1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccab72e0b9612a67b2e4ec3feb41b04ff91ba07c6b7ad8f7f490bfa57498f3c2. 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/BXUGU1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0993ea18d3fbbcf2f1f34b3283ebfd8879eea0b528019b76e402ecd33e4244. 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/BXUGU1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfc9d5815dce8be5e75a671e7c2e90fb9d61e33b5db4395e50f50537f35d0b5. 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/BXUGU1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2275edcbfdf43e266375f2f9cdc3592d53789d097122c10e47d3a378cb5f8139. 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/BXUGU1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9886f9aef22f26d6a3fc31e7ef1829bb5d509184696af0ed808a931ed6d6394e. 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/BXUGU1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012d7cf24dd8b57eb3785844ec3dfe9dae101c1b44bd7573265531b41eca050d. 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/BXUGU1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a63e0eb53f7536436333a6a92e6abded3e5ed8e64fefb3470786d90bd64113a. 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/BXUGU2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320f29e06d696b8fb4578e04c448885bbfa773777d595b5f73e610d1fe46757d. 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/BXUGU2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f3681da0081746678b3767d67e18db0ab80d9629738d9a8c608248b8d6213. 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/BXUGU2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437970ece8dd1c01f8076731b5f7bee1905bcbd6e555287721638e82ed5d5cfa. 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/BXUGU2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6c3078ac676aba7df6131a3d8c6ff16a56199e4c9ad77c729d998f156f7c53. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXUGU2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930104f6b1ec442708708151158c3e1c466a313b68b92a4001ed8c3207e0debb. 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/BXUGU2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9010454476b0c2601b8ef1f64ae23d2812e8c9ab65d934ac60766e279f0037e8. 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/BXUGU2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fe2c728aff16fc7d586383b951369a82960bdb06912e84a9814b29ce08fb77. 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/BXUGU2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc6e56968509ca439d368fc468b6a7487f2a3f4d043ccce7732924771d7de6f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKZ192500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c25e372d542dcce984aadb805f79fec2f3c737c7e203d26823149f418262c78. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKZ192500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369488841da02703dc248619add780bfc16a0edd3d4895df0fcf27d0d2e9d8c. 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/BKZ192500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f409c5415d282554d737c0f8febafe7ac4294f198f6a423cd36eb11162ebf. 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/BKZ192400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb34323a11137649ed9c655a367cb104b52e4973819cb3c1d7c71617744c35. 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/BKZ192400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7e5166254fbd60343a4ec32b3b84769a2393d88dfb72a0deceada516d8e438. 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/BKVRY2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b22299bea6cedbaf51dbabea9c78f000907a087e174ce201e0788a450593fd0. 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/BKVRY2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655b66c87865fe498423960a7221f85e4c13dfe523903d5d0b49ae91534b5d0. 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/BKVRY2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5346b5a3b8b98cd2c75424ac30818819ed6bc09acff0226343960ec0f9bdce1a. 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/BKVRY2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655b66c87865fe498423960a7221f85e4c13dfe523903d5d0b49ae91534b5d0. 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/BKVRY2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb34323a11137649ed9c655a367cb104b52e4973819cb3c1d7c71617744c35. 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/BKZ192400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7e5166254fbd60343a4ec32b3b84769a2393d88dfb72a0deceada516d8e438. 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/BKVRY2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668da0b1438a818ae9cd8b511e8d48a39a2412871d3453fdbf4aacb095f2d9cd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXUGU2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb953940c8a7e29719a30fcc090872fd25a4114b68f4cbaf6c45043b67d5e8b2. 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/BXUGU2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe3e4d2a3f2bf8c995db2285487bccdb7a3b6e215269fdf675bdf21f1b6335. 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/BXUGU2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd461f9dfa42ea231018e2b740ff2ef0a8e4bf3ec1b256d619a64241287bb7613. 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/BXUGU2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ba22a82b7d3ca3cc2213fee5c4933632b7e3a4ea056f69a71b2c6a9912a33. 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/BCULZ2300001.
Se Tentar Só Vai Tentar (feat. Reurbana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc39d6c6e032dec463ae9087ee4db967d06ca9f81550089dd7f01ddb15c8ad45. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXWJ32100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92bd961dae6fafd9cc7714205a2b6dbc1a764ad6a72c55dc042e72f71438249. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKCVE2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9010454476b0c2601b8ef1f64ae23d2812e8c9ab65d934ac60766e279f0037e8. 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/BXUGU2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361afe4d95eb161cd11b5c19763cb566ec90cea7f435034bf9a2cd81341722df. 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/BXUGU2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e2a45a98bc9045384265ed812e50808e809c1d44de9028d984b067d6593a86. 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/BXUGU2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1311053efcabcbb886b6471f7b071551a3a8f91529be12958b6c457851c79860. 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/BXUGU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f40530ffe7e4b475a54f768e50121d8bf27edcc1b2b469668427ddd874a5b6a. 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/BXY812500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee878b2e21ab82a879a4bf45b460751d4d1d0dac8ece7acacb3a4ca6e3ef143. 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/QZNMT2587995.