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 0xcc0ba157fe0ed03d674ed3995d9e0d94f877fda8bcbd476e2b816d2562e4a0f2. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57f0ce4b-ded3-4a52-aaa0-f6477c84ea8a.json and https://artists.proofprofile.net/proofs/artist/57f0ce4b-ded3-4a52-aaa0-f6477c84ea8a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0b1caac216e71eed7ad4cd990f4ee50a72c286a7f97aacd5d9dbff8d73dafc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BCVBV2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059493124a89062f92849cda089a41699702ba37e000e098fafbf0ce941598f4. 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/BCVBV2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d2468f8b6f417d5a269f6b905e8395bac245b881c54b878b675de941050d7a. 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/QZG2X2409769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6b9593e414f83618dd87801c9d15c625591460d20c257f64489902e35d6597. 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/QZG2X2409770.
Ta Passada - Charlitos Blue, Victor Cabral Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ab6f969c44abed88dd2a7d648670fc22bfe08ae1118163f8e18f9c4791bc73. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZG2X2409767.
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 0x3593d1cebc495b7198bfc8a05188cb5deb7721559bfc65ad2864d0bf56e88db1. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZG2X2402309.
Dancefloor Lover (Dani Brasil & Rafael Dutra Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576ee2fdb4741d051fca9e049aec6efff6769598db418053764dee8fa1f34a5. 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/BXTJO2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd11ed0239f48b7875394f1acfbfe5611b6ad502dfc402ae33f9a060d3304f29. 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/BXWU92000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50847b62c98bac95666b2af2c1cbb2797d666c9cc186a2d26057cd64354af635. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BXWU92300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8550e4230270519fb85e751569c7a834e4c7f3c75d17001e8ca61cbc95178f. 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/BXWU92100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2302a1a2594d1e6e20b75dd6181f53205851160699ff4e30d34c46dc6f6a34. 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/BXWU91800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf420298fd15dee2225a73dde1f1ecb0b179ff725f291712ace0bd2fe62655992. 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/QZHZ51972571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9982a65d815627fb19d8257e0ab593e0f86a18a6aabcf87afb9b696b44cc34a. 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/BXWU92000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0c24c37f44c37439bf33cad61a428de22d38b1c78b636076923128004ebd33. 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/BXWU91800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07330443f9422962f1a754271d4d861f24c7f8c7a38194dd324c0f00817d8c3a. 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/BXWU91800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9ea20d31ab05928ad15269b9818a45b149edc43aeaffc9a9821969e3022ef. 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/BXWU91800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ac2a7392d198379a7f605a8d76374349ac43a208780a99fddbbc5182cb08d8. 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/BXWU91800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d2fb4abe8f61cc942bb4c4de13b372dfff1767530998ce74a2211b18a965d5. 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/BXWU92000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67690fe9079829b47c7020c2f3c50adf2c720446f8739edf96438d74845383b. 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/BXWU91800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3fdda657fdc667d04c81dd4c34ce80fa732b210a8f47293bf9a7768b358341. 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/BXWU91800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45a359df7ca56b9e810b43ed7e760d1923631be3a4ee8095b3eb161d855ce32. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXWU92100003.
EMBRUJADA (Charlitos Blue & Victor Cabral Remix)
EMBRUJADA - Charlitos Blue & Victor Cabral Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18c6c34d928fab08e959f046acd87230cea81e7f69e2a2e29e6254af4b74d2b. 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/BCVBV2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6fc6c8be93f50f47db0fd936dbd21509d2ffbc05c0dbf142b06cc51d89ba44. 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/BCVBV2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc42d443313fcd88d4e9f1485ee4ea427f6b550edbeb51cb1ae3b357ee03e7d5. 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/BCVBV2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbf9581cab287f91acf61e384798223d8cccf9b0f84955bd82443c57340ff4b. 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/BCVBV2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a51dbb8adae1b54240780fcfeac2d27ec1dede62f15532e7185ba277705ea2. 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/BCVBV2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede907c9e27d1fe1fb39fc91e4af5f49e9dbc5752a927690476b42ba0b5d199. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/BCVBV2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa829b1cf6f58bf4e399caa573f2d079b6d2928238a8ad70c59cbf2e4d3873a97. 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/QZMZ92524576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daea818b81dedb50f25b29517734de6927626b207395c89d876a95a62e5ec58. 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/QZMZ92524577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66bcb92b62cc2b1854c5b5646741b800ec209eceb7e33d9b6b8f43487e63067. 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/QZMZ92524578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5e91dcfd75eb2476d15ab4ef1f41616a5b3c2eb2e23c3cd7b5e2e90d3247ef. 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/QZMZ92524579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1982b98b085721b97bbaac0c7cb5091d866473c3cafc2d0c4236234721cb3158. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMZ92524581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863f3a2666588de95a19f67ddeca00dd3a221af1aada67a82b43753ae88b9cf2. 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/QZMZ92524583.
Porradão - Victor Cabral & Paullo Góes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8274339fe5638dfadea4012a29ad4051da5f8f68a36979feb527e1ea4c261e9. 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/QZMZ92524582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e21e2c58503283f6cb6ce6cba3c7b558b251f1e52a9a3b5ba5ab4a9dd26c73a. 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/BX8DT2100025.