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 0xeff5d92c4c33fa815533d17ad426ad17fa21323acde7919a07ca816a7935e101. 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/cc2f7f23-ae7f-48a3-9a88-a435e7d7f975.json and https://artists.proofprofile.net/proofs/artist/cc2f7f23-ae7f-48a3-9a88-a435e7d7f975.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LOSING INTEREST VERSÃO FUNK vs TAMBOR CONGA
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 0xfbf2920885bd2029b7aed0f360a675847e6a76b6c74e4035a465a5e4191f6a00. 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/QZTGW2405716.
LOSING INTEREST VERSÃO FUNK vs TAMBOR CONGA - SLOWED
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc68c463d8f9e55cf5fd9c88abcd00494b065c66e58afb76aa871a03229f3f2. 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/QZTGW2405717.
LOSING INTEREST VERSÃO FUNK vs TAMBOR CONGA - ULTRA SLOWED
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ac22e2e5740c54f21a3da26398c96d726c254a11876313a6cb938a884693e9. 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/QZTGW2405718.
LOSING INTEREST VERSÃO FUNK vs TAMBOR CONGA - SPEED UP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf996b64c3182c11ff9c77f631f0503e25c518c9b1643531f08e46be414730b01. 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/QZTGW2405719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb0a63183777ba654343c05cd04f48872e0b04a1a4a31c13921c8b401af42f6. 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/GXBAV2570196.
IM IN LOVE WHIT YOU BUT x VERSÃO FUNK vs TAMBOR CONGA - Remix
IM IN LOVE WHIT YOU BUT x VERSÃO FUNK vs TAMBOR CONGA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900f07fab5e14054036f37c7597485076e4387ddc656a4831ae1ef9d31de8be0. 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/QZTGW2402324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3f0ed72d0703fc109edadeb1d765d73834ad103caf36f2fce0de0657ee2b87. 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/BXMX62500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a3e996a1f6be1c0e9d1e25cae634fc8232e28e0e5783817c3f8bf662dac256. 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/BXCYD2500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1886748c075c4f8fd2fa17e998eebc8c6b04418f76c3baa3c79d339ad4c4578e. 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/BXCYD2500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669e32ea95f96a8ab276c008257995fe58e03ce94a96b04b12f32854593c5fcc. 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/BXCYD2500075.
Nós Marreta Coloca Empurra - Ultra Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f6492216626bd0d2cd015083df7b42b9ed5b3b9a3fc2f4cb71c2d5efee9dce. 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/BXCYD2500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489eb983a8766c724d9e6e9e8a145870833a48697c8d80145ec28a6ba81c5f3d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:46:08Z), 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/QZTGW2404867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36af359590938e4ed86d0f8e6e93d2f3e6da8d51816db57d019a77657fb47ddf. 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/QZTGW2404854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb654a9f034fc71471fb08c882a66a80f039f309e9402a235618dfebd5c6a4b36. 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/QZTGW2404557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c48be1d34be8a31a76659436a6e942c51bcdc2caafa6e18d3942a850cbe606. 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/QZTGW2404154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37427acd6af5bab3701d599ddf936872bde198456f27fe84e0e767e6fa1feff. 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/QZTGW2404868.
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 0xea3142cec5c62af2eaf21ac80d8e23d9327547b0fc814393bd36097c1a7bf146. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZTGW2404869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1a6b16399369833b70d697005f5c7927d12839c1891f704119ef03ff686959. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTGW2404855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551947e0d28df1a150f524023b9e89cbfc29a6519c2f7bdfbe7b263de6de464b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZTGW2404856.