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 0xcaeaa306482b97e78f235c251b901b3d8d26163fd322d3a31fe9a9007e22f02f. 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/67f97edc-2143-49f5-835c-fa1a8f2f931f.json and https://artists.proofprofile.net/proofs/artist/67f97edc-2143-49f5-835c-fa1a8f2f931f.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 0xcfe6aba9d931752cc4c5fd70be42a3fe999e99cd4386603e3634b6aa1a17af14. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BCA2A2300182.
Splish Splash – Foi o Beijo Que Eu Dei (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd8639db2dc26d1544109056cd694f4d02617937d329a72308aea175257c413. 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/BCA2A2400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a6488d440428413420b00032b72f6f7cc90c88e78b724cccfa557fdb96b6bc. 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/GXD7V2231956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb846bdbbcbac5cb335b88339605fc637e5a7a8843037e9249602b23105d4d8fb. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCA2A2400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed874d545783e3b103e269076d8f5ad388ea06abb629d13e5280879440402fae. 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/BCA2A2400354.
Muita Bandida Pra um Só Delegado (Remix)
Muita Bandida Pra um Só Delegado - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ad6cc4425dce8226181313622d5b7318a8bd3b239b20c66bc9648e56b75c9e. 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/GXD7V2225338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717f19248cd51c32b61447d3485f4a6e7d37eb97825a55a1aab3d129157dafb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BCA2A2400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5711fc75abe29d6e4a910d0487563c3f46f99c5682909e8ff88bcb3c9fcdfcc. 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/QZMZ92490372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820478e8e69d6cef0a4a8768faa5ba1dbea29b80b66b698e49e72d5621151e60. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/BCA2A2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b000141a70d15f25d08041c20b0e8bcbf8f0c2e6ad978ea4be3cbc547b6e36b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/BCA2A2400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763154fc69edf7f38686e1e74fa423aa831d4c7f9387295f6e2448053156f5d0. 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/BCA2A2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ec609058448e9e7e4a687cc78fdb76f06e403e9d7319a077554e3ccf36fa18. 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/QZGLM2455665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b832fc76d567f3a59e9d7e3c94f0ff8f19e0a54a0ea8efe794d8ea80f5bfac1. 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/BCA2A2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b55fc683083357d2a1d6f3ec723627dcef5e279211bed41d97bc45a7785b73. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GXBAV2441288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc647e67665731449add03725ad875f3bde5c1c80a2805f2c05caf735296b2f. 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/US7VG2420829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf52ea0e95bb3c138957fafca8e50e21d2b2b0f3c6dbf4f552d2ffc36bebe7f2. 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/GXD7V2432397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1563e44aae412738960a1cb124cb9b6e9cd59b57d642be48906751e8120808. 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/SGW502387246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae59da5b51933b122c315e22ad358e4ebbe23e1a3131679f4d66504f852cdf7. 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/BCA2A2300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f974310365e13cce892df95a66d665416df6aaeeb88eba6e8901e72ca9a3cb. 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/SGB502365314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe30ab0fa78e1b546cbd474e891e74762d95082c3a49a9ee5c728fc8dc7a714. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GXBAV2382042.