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 0x1aee61fcd8b359fb40084194f13035a4870d0ee214ed5dc1641c901cc8186785. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3d9974a-16fe-43f4-bf06-b2318e15ff3b.json and https://artists.proofprofile.net/proofs/artist/b3d9974a-16fe-43f4-bf06-b2318e15ff3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bailar Sola (feat. Florencia Lucena, Nahuel Barbero & Hernan Ortiz)
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 0xaf987d316854d466b8df2a293bbd5254ae580f403c3383af9786c0173a0f8c74. 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/ARWCG1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81613fa644e7d81abf56c372ec659a3b97977bf80b05f451f3774b96f9fdf566. 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/ARWCG1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81307df4bc9242e60fe078b45f0638f31d70ecc65bf6bd5c61779156cf35d587. 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/ARWCG1600003.
Unicos en el Mundo (feat. Florencia Lucena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca02235e956158c89a19ddc920f444feab495ae6dfe8d685167c765febd5163f. 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/ARWCG1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf815b7e16216e69d4e226f8acfda2b181057d3aca4af8e0b265b230c68b441d1. 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/ARWCG1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04cb770f5ce77f8fb4f7c5e85801dcf1be14cde2076b7a6f1d367b30ad3ad6c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ARWCG1600008.
Ven Hacia Mi (feat. Nahuel Barbero & Hernan Ortiz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb7fe069eca9ce59250e274ea280d8e0276749570cfe131052231e0e3e4a0c. 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/ARWCG1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647bf6608b83a4336b600e14350ea4bf7ca46d2201dd027bfeb2b6a22b4b3208. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AR6B51800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4ddb5557a61de6d29b976ec41e06ca5796ef12e2cf4ff7ad1a4f0c1e3cc6ba. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/AR6B51800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e66035ed642907915eecce9470aaf983a5825b2a63bae845b88b3c5cde068a7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AR6B51800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7a5efaa3d74cd44cf44f5118a1cfb63fc167ad62fd0328c35a58193ca45a2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:51Z), 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/AR6B51800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5eb23323e2e4511229257cca56acd506392b2dd412aeb16b4bd8787c65c996. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR6B51900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345f26ca4f8e74fe288039f2fac69f5fea362bbad4a77aad7fdcca38f4f21946. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR6B51900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a0739dd4e3f43e0cab0cf45ab08787f6a3685e67266aa52fe2504340f7fcec. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/AR6B52000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6c1eee33112c40e0628e802658848d59155fbc263ad99638398d17d01b04e2. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/AR6B52000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ec3414e67c6675de798d02bd0641cd15ff53425efb57373746ee1458b3231f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/AR6B52000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345f26ca4f8e74fe288039f2fac69f5fea362bbad4a77aad7fdcca38f4f21946. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/AR6B51900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a6c3e6bdaccefe75e18207c6ca1aa7d308fbc0315f5b03d198cf2e1a0b8142. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AR6B52100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af1fd3a271b9a15980bbaa6306e4f7d043707fb5564616dfbac99d937befc30. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AR6B52200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a6c3e6bdaccefe75e18207c6ca1aa7d308fbc0315f5b03d198cf2e1a0b8142. 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/AR6B52100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b109af08c97ef0af3c27ef74398c33db851be037dd659b0100010774cfb06d. 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/AR6B52200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ca2f28be7d6ed36511db49f6a04a2a1ddf483cd7d2c63cad827e41eb54b02b. 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/AR6B52200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181572e8d4bb99ae298b692c7958afe46ad9a30a88fa1ef174143ce94f0f95a8. 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/AR6B52200066.