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 0x6fbb96ebe0ffbe6aa790a601b0a4c06445677457f5e54f7a21e0254a29ad1c6a. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02eb1c1c-9153-4259-a116-18815b74a637.json and https://artists.proofprofile.net/proofs/artist/02eb1c1c-9153-4259-a116-18815b74a637.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 0x3cfef2930b638c3c29ab80dd84aadf6dc45a6dd99bc65a409d5f6ad414a9b419. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USWL12303281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee4a5f1a47e957f7498c53e4c121f9f1b2e51a2bdd0d5c25a58ebd36467c826. 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/COAF42392499.
Exótico Pa'l Mundo (feat. Leysong, Buay Press & Luis Eduardo Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8467fe4cdbe55171240d80c31f36209cd8707bfc39bf42ad1efb9ad71f8a9c. 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/QZDYA1800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82439028b881fbfe48cf7766fd2b2c1f77d7d7512310944619e3fd22a9e476a8. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FRX282261484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6f9d7817d317114bfa77a9fc78720a25c774155f759e529f95e077afde08c7. 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/ES75E2202804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b74446fc40dc53461021f2a7033abe251cf57892abb7869f54439c15735656. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/ESA012200856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227777e6fd092bc6c04c82e5fcdb2bb772047dbc0fa2a5088d883a4bcca940af. 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/ESA012200855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2af4880821f1d91ea24e703d41ff99f80b76dc255fdf4bce2bea3ed0824be1f. 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/USL4R2092903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46957b9f8e5851443c7b98034aabdab9b153b9457fb71a1acc389931e0ae8e3. 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/QZDYA1800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22a8349280ed0c286d78d70764181e9aabd33f6a24ee0fcbccb00ec3342a5f2. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZDYA1800134.
No Avanzan (feat. Luis Eduardo Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609b34847b37727498c8dfa3f0222010871776b368a69c11734de5eb3ace0ac. 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/QZDYA1800279.
Las Botellas (feat. Robbie Vida, Buay Press & Maiki Vi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b2fe5918a97c4b98dd16ed492333fc46b8a2d4959b674255bfbfce5b5226a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZDYA1800284.
Más Que Amigos (feat. Buay Press, Robbie Vida, Luis Eduardo Acústico, El Vega & Dj Zaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e45d732b1c85489f14934b412ca84d849534d139d9996bbcf4ec766f56c01. 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/QZDYA1800285.
Ahora Dice Que Me Quiere (feat. Hamilton & Bomby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a317ecd71ba1b60bb5b9c5425e8bdb5de70e680124eddba412d4692a1c481d. 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/QZDYA1800286.
El Abogado (feat. Leysong, Buay Press & Dela King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb125f9d1ad72cae04c688084297395c14b12b42fdfa0ca5404356dd22516f27f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZDYA1800263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d53a95e47612895ecf4c696e82f00931e30b0591754f0ba8564bd69708d0590. 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/QZDYA1800288.
Brinquen (feat. Leysong, Buay Press, Lil Ark & Dj Zaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5ef7c52ba5059daf9438b8d62d3739b002bb3a66f2ab4d21155ce61ff5956c. 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/QZDYA1800289.
No Me Dejo (feat. Robbie Vida & Fux Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270d8572f7ae0ed25625f5661ab3bbfc859d631b904820f540ed477808806f58. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZDYA1800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e22f5454d3e36122ffc3bb47c7a4f0ad94e48269580f9716b767c26efaa6d. 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/QZDYA1800247.
Motel (feat. Buay Press, Maiki Vi & DJ Kasper)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d7b83a898c001953a809f5adc653840ce5bf1ac3cce319c390ce674d67bdd. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZDYA1800293.
La Luz (feat. Los Dioses del Ritmo & Alexis Play) - RMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b3e36e23138f15c67d3cc3549049834dd904fc660eb2bba19bbe55a2249b37. 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/QZDYA1800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15073c2d5a6816292a0899c0dcd5c2a0d67025a205234355f3f34b0473d66de. 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/QZ7362400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecea516c09cf43a67afabb0ae5fe85dcce103d2313304cbdafa6a8d3961cd198. 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/QZ7362400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbd02ca55c5cd02b65c2ed096e93c28a97462a71eb830eaab5b00306e71e66b. 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/ESA011669007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02e38b52590522680ac35e3fbeb227be536e60d6f38eb9de631dedc09fda393. 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/QMFMG2315154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83e2e9c69833b8b9d9e29f0b0a0c728e1f8ccc860ba138cb746c5edd55f6a33. 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/QMFMG2315155.