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 0xabd899eef87cc6ae5133e7ccc495177f5034d013787a3d9bae4c4cf060ee7b7f. 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/df0e7f0a-aacf-4e2a-bc3f-4169eacbfbd5.json and https://artists.proofprofile.net/proofs/artist/df0e7f0a-aacf-4e2a-bc3f-4169eacbfbd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ultra Rave Copão (feat. Missiatto, MC Sapinha & Dj WJ)
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 0xb9ba6abb48053dbc5014c1a081910e63167c5541dc67f238054fa1d2aea67058. 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/QZEQU2257406.
Machuca Psicodélico / Balaco Baco (feat. MC Mazzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6f9cc01380aa9d9af57d8459476ee2b43c1a674cc4dddbf2f756be55bea01e. 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/BCO392300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d52a4306c24aaff752ba5caa36db49e7dd8052e183d7098052a557ff142289c. 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/QZEQU2257405.
Ultra Rave Copão (feat. Mc Sapinha, Dj WJ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dc89c78f1f3903a2a16a1f6f17ddaa88a7054e62b35ea649fce4ef61e55d85. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZEQU2256383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672bdc8b98083ebf924e940e5279afa8baee976b7f574b60700cc2a1646a3e1c. 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/QZMHK2392358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047674948108dfcc317712932665f080d15dbdaae333c13d7e8befd36342e2f6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCA6L2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096bc07c002ec8bb002aeb610ec00b047607800acffe077e20c069a5f994e89d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCA6L2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc8758ce9807da5d97dd107b9a5792bb08e6ad945ad8b9212f00df914a5ce1d. 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/BCA6L2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e6a47f2b84d2afa8817b2e83b3837fc9f16c965c623e3aec0a2faad03cc93. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCA6L2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8091995e2b4896514892514810507cd35643ddef11904fb323670a19227f5e61. 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/BCA6L2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc001ad3c7f900d2ebc16ba92c3ae855a441e53acfbf3d3d5bf5f581299bbd4ef. 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/BCA6L2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e754aa2c5abc51de66c45591999ade97aa90b5f62eab2216ff1b30deb1a5c80. 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/BCA6L2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4439d8fe9c882c1ad126c326e0dddb6b8e0c81873fbd1e1277c6dc8da17dc4ec. 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/BCA6L2300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4171eede49340ec73713f4ee26a112670112bf9a9978c37b1fb9592e4c934b6c. 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/BCA6L2300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3462cf3a8bb2b56e140f4c90eb1efdb7522e409d13edda57c46769c6bc40c7. 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/BCA6L2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a68ce0a59aa70a70412440c382a5acf15bfe8a4180682991f773214bfebd5c6. 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/BX4IU2501833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fd6cbee891dfcf2e7ba263a1542fc217f810b21b5523a01c16cd9cacfc558. 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/BCLWS2404551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de81df9ac361bf8175b20692d324d46d5f78422d677f28848c8c127eb2a88a. 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/BXNT62401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ef4fa20076c98b0c2323a76c8323bd33f1119228dc8bbdaf559f785113bd6c. 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/BXL622400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfb53500faca78a027c6153da951567dee7c90c701dbd133dcb7430b09d2028. 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/BCOPK2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8d8571db4d41f54ab075b87b0fdabb6872ecfc4d4acd46b1d712c8e80e13aa. 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/BCE7P2200369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5085a2dae50e29e6560b8ebee7ef106080759563baeb75af785d7b1fd5a80402. 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/BXNT62400652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0257401b9558bec0dd8ea5c2daf83476be8eb463d30df0b887528c051deb43e. 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/BXNT62401214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae64222f9408c1bd4868096cdd9ddf06698dee3adba5c7de068d5dfc2cfae3e. 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/BXNT62401286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4391c3e0dc21f8fcc20f730306ce8b6773ce9384bc93383f8d2abda63c302c24. 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/BXNT62401289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc552fe1d9e8f2c40c43b3536ead7d6fa24536dea0f87883e89493a26d8916. 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/BXNT62401292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaaf598d4ae7982b2013ea9e62e696dd6f79a6303b086608be751bf617e2542. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXNT62401295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859f3e6fff8061ce89ceea5d5f3d24cb07e0e6447122521bacbc02aa1c3fb849. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BXNT62401118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fd6cbee891dfcf2e7ba263a1542fc217f810b21b5523a01c16cd9cacfc558. 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/BCLWS2404551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b11648597ce7295cfcb4d0f6568c5f502cf65153fb522f6c5574ed6707ec97. 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/BCLWS2404552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a98e1ab417d787f578ad932b039a9f1483a783fdf808a78f95665caa29e78a2. 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/BCLWS2404555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd6b4590959e23ccb566c492f9d6f4181084b9f6fbaf1ba67d5718a65a6694d. 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/BCLWS2404553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23072339d753bfa7ecadcea35f48bb7c8b8afd49c26857e400b927c7675e0011. 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/BCLWS2404562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b995c195658998d5ac106af54a9a4a94dd8c3b0b4ef5caf6394e3a4258136a7. 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/BCLWS2404556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a2f13526f1e9fea54967e93394adc69b3652137f1124fca247e8fc312b7729. 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/BCLWS2404557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabd3da6d8f9edd78c813bdc61195c5c2036600f4cc0ecf4b440d97647077a64. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BCLWS2404558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4994c34611cc9a8b8b4bcd82a0d50afc827aaf7f255e7a1a12a28eeeb2d218. 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/BCLWS2404559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e17d0082505a8f852a88683cd7cd78c47285495d7767d0c0672f4c953455d8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:15:05Z), 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/QZMHP2394983.