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 0x4cc363b6139d6fa48d00713b752d70e470c08876cb5ec760d380090bfdb94a56. 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/f7bf53c5-5038-4667-85f0-69eff7c244fa.json and https://artists.proofprofile.net/proofs/artist/f7bf53c5-5038-4667-85f0-69eff7c244fa.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 0xd4709870cbfe1b9b1c8fd4455d934e0a28f30a0a8aa27cbd7f9e3bff34d78a09. 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/USUYG1087268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3ef334f09a8fad1e3fe5013c37ea8256a2a914e96aac91e46502e166c38c25. 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/USUYG1087269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a06b1a4b12b3e79c7d9d47ad69c6efb781ec017503401c6124f6136bd710d. 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/USUYG1087277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ebfc5d75e92b30c4b63ba6095b9a6defabde77f16dd831b5c2b4a58954db08. 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/USUYG1087278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727b67444fae6e4cc057d2ea8238fd68df21e11f77482de1fe6cbde1ac87c2a7. 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/USUYG1088174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae92030bcdab156829c3d108996f482858b7c59271cf963f7c2a6555b4df93. 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/USUYG1088175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7959e815316155054eacb8459d8d5e59babe0fbfb890554d2e7eabebc4507f7. 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/USUYG1088178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcd99b81e61201591c92d16767169544f705495f370d36747c78792895b4cdd. 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/USUYG1088179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f66e8452ce522daf16143cb9c56f7490d1bd7cd5e1dcc011b4d62a01a54ab30. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/USUYG1088180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634041a8b0a40a07513434f43e37a6ec62381e0a6db5da7d2670e0b3df0a0bd3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USUYG1088181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7239648d430e3ebe629de63bb8ba6f2edeeee893425144895e263b7e0bb8b7. 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/USUYG1088182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc748a868f08e0551f5a83ca1ff6949cba62ee1abb29588cc782de31d5b54f07b. 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/USUYG1088183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4706160f1e4a08312038e0a8eabc88e33ad54e48568d11f35fff66c4634c5ed3. 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/USUYG1088184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46bb84f5ffd4f18d55dd292c605c872ce7d88ac53c39d836ee2a9ee01fada2b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USUYG1088185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b402b8ebcf3efcacfcf4dda3869dbaad59a09a45db02d801531d52610ac3dcd. 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/USUYG1088187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe3c27f80b9c6c0115b368930d029dc2ae13259fc4f7d4148da47a2686bf4d. 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/USUYG1088188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48c39db733dd856949cfca2f2ef6a67cac160ba3330fd277177864c6591885b. 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/USUYG1088189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a19d91da4b79164b7eafea6946a5ca6b28d3e1b6d3ef86f751499a0e2b4e8c. 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/USUYG1088190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a3de2e1f3e285f114444f361ec5fde07fdab8b432a1491e39af666514eecc2. 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/USUYG1100617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34490a72be14fa8a6962ba9bef4c1e8ed9bf5dcd0af062aec307826c691e6005. 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/USUYG1100619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc7a099205f0229f9828a630e6acdea7195eada4db6329965582ec428303476. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:06:54Z), 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/USUYG1100621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33effafb3fa1142eba2eb9592e7bed971e555c27370ab6d868e5cc8cfa5548d4. 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/USUYG1100623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fb558fe5472bad6dda1a799288e1b14a20a155c01293adf36c5073bc5b1a01. 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/USUYG1100624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22240c0f9f71d64863e266312c8cd898b0132fc33a319e96ca139360824a400. 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/USUYG1100625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70069a5e5fd7eaac6bc890fd4fcdcab0200598fb8be5156c4a0515f66b3c5377. 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/USUYG1100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1203f910ad0172abe00e8c76f46ae984a2dc7fbea1117f6aa77928d9e64639. 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/USUYG1100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505c7fb759cff5e52626b5eba6863e74c4d43a07bfc8197c44ede10159760897. 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/USUYG1100631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0551e71308c51df5305452155dcfdc447aaa9fb0a215958f5ce8b4218e946c0. 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/USUYG1100633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695885e21246eee289e1843a20bf3095aa76ef950f366ed5381f5b3732563a6. 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/USUYG1100634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce96f34ec10a4d6c3440f37a5978f4a7e93653a517f0c66cf998e68466396d1. 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/USUYG1100555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76aae7c8ea61c89b8ad9f1c21c1cbd2c9fa710de201f771ea0b28c5c0deda95. 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/USUYG1100556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5d011bced9a9c7f9768bbcc98f31d195bc8ad19618a98d3bbb5dded13e48b9. 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/USUYG1100557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83821a601032bd411bd1149cd5976f3aabd3df8a610fa24767d495628c09d9a. 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/USUYG1100560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1555810dd1b9d54ea9efe67221b336cfcf0de9cf2195b6cabfc3485d0552160d. 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/USUYG1100605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4918ff5cb82ccda92138db0ee1b89ab6f6e53faa0fcb6ee6929f31e23f9d42fe. 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/USUYG1100612.
Only One (feat. JT tha Problem Child) - Single
I Think She Likes Me (feat. Nicki Minaj) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c067b0b9451f3cc6c7e6eb7bb62efd09dbbbf9361fd4dd8c8a9ec6fa4bc028. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USUYG1103945.