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 0x1fb4d449ab5db3714b676f77b7143cbfc3ea2a337ab67557c477673f4c44ccd9. 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/c631a3b0-5648-4e29-bc0a-dc11c4f1d98b.json and https://artists.proofprofile.net/proofs/artist/c631a3b0-5648-4e29-bc0a-dc11c4f1d98b.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 0x6260aadebd58c924627cfec22a4aece86e7da3fef657893291ca730fb463874d. 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/QZFP52444835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045db932b6504fab374ae45236fafd98eccf1342f466c298a438f2078208e183. 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/QZNJV2431936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79a843825e4fb8b513a9377341437a83ae81debe43756bc0a88cf314991c392. 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/BKFUX2301248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62cad06bcce491ab15ba130b14704954241fe87cce3ca90f2d01f6cf419e147. 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/BKFUX2301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4143a5b01e1018580dea54fae0ebf4892b53e84231fc62182d800de544961dee. 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/QZGLM2412888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8e7386bfa27394066d232794c4a18aa2c95ba2650e94487832011cade0b64f. 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/QZ5AB2453302.
Hoje Ta Suave pra Ela Sentar Com Vontade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949a5320a5494a1e788cda44e7d928c1efc4b3e4de0abc97703b5bb2d1c97a8a. 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/BKFUX2301097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54740ec37be435f48f0dc7b603e208fee1e92f1b049e1fcce3ebbc0895e16f3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BKFUX2301093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c09015069cd336d99060a97df706e9a998f1ee22b4ae9286f104b81796bece. 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/QZ5AB2434304.
Ela Vai pro 12 Vs Elas Tão Babando Fácil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5446485c4c9a8e98fb6944593231054288052303c3cdef1117373287f30b1cb7. 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/BKFUX2301096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34219e17670f66c2d1968a6586983ae87384f08b34e63156732e0b4625a18a0f. 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/QZTH92371255.
Senta no Pau Dona Creusa, Kika no Pau Tia Ivone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c65b627092b64c9aea70b364ad43c7377687bdfdc245ea8670fe3c2592ac411. 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/QZTVM2488173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8223789bf627cd6590e738b47d1cafd49db118ede31c0d980dbb281e2173ec. 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/BCLWS2403243.
Toma Só Porrada Firme na Xerequinha do Mal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579e67685e1c8c6fa3c954146fba15f2ba1da33d2ca2324121bf419e057d9070. 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/BCE7P2500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d63716050730d4115fab4f6b3123f098cd045ed996a03287f9032085cf1f17. 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/QZGLM2565094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d48a0f10e1f116cde5ae5251fc530ebeb5c4d5d3ef408ec52545153147afce. 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/QZGLM2549350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bcfa430eb0cb213faa5cb5665f420517036bbcf103faa6c4ec91135ce16e57. 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/QZW9M2418946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e865fa3f89e159e05f91c605b0b93589c758ffb6ca616ab7d1b432121ced678. 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/BCLWS2404434.