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 0x1c9cdd151a2aca49bb90dccfea4ecf9bf8c346cbe99d5b53f402a01c6c33de78. 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/aa9249c3-8e70-4977-93af-9f4884c3a17a.json and https://artists.proofprofile.net/proofs/artist/aa9249c3-8e70-4977-93af-9f4884c3a17a.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 0x0d4f099302e03852779209c62df8b180aa38f4330cc75180267970e5598ef986. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ITB002200717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf28e8b0c0ec9dfbc68dccce235c467d3c68394a3b365f1106d67bde326aaee. 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/ITQ002400873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736c92428abb97ee1d4b87134e997a4d7b23b2ba0712119386039f5873e40304. 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/ITQ002300483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0fc19c946a4f32da2749eb9dfcbe8b6e7b633b04c8cd24643cc98c037e525. 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/ITQ002300484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc166135c51b367a12a1ada96f42ed15ec2d2a779823314d18e027173697eacfb. 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/ITQ002300485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454f04706bca43a376617d4dd22a58651547359ba7852a8341d28e479435c46f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITQ002300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e8df41bb3428bfbdd58ff6dbe2f539ec31af3bb7a2492595c158dba49b24a1. 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/ITQ002300487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6cb7f441e1e49852280fce83c3d6af528b52d8fcad16a701aa21e3e92c01af. 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/ITQ002300488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bf96d8afe3878df75c8de6a85a5edf32a3bef351ae797eeb70a6054823224. 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/ITQ002300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e5c9ab669c1e7bdcf4e16a227c39353ee3f15771ba3992629c00e03d6c53ec. 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/ITQ002300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5390deb7ef9eb50d0ec886bb492ca9ab8d63e38e52e28c0b66de8b6d79403c4. 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/ITQ002300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6150f2bffedc4f14c20ab73a0f030a9d73f639c1f354864cf347ceba50c4dc. 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/ITQ002300491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839ad37af41959dbe5a807079ff4e5d995e8d74307085f4760625c80f3e2aca4. 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/ITQ002300492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c5dd660109b4f02f8657a7229c9245d43c3e13e2e65415879ed4cf3a3bb3e6. 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/ITB002200967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8112d8720a23e440c7b3d084f845f73545c4258b63fd33ebf8963c2b2e2eacd9. 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/ITQ002300493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf28e8b0c0ec9dfbc68dccce235c467d3c68394a3b365f1106d67bde326aaee. 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/ITQ002400873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8e9df7656928be4f11c33121db635e7e2a83927c0614ede34ab2ef71d09c83. 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/ITQ002400952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eacbbd2f44f8cf0295228538a43d7257e8f917ff61ecdda7bf21c9ac36512b. 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/ITQ002400953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5e4a53c5278461deb93e604d947ef2fd80759b38253c501be873c5e5262fac. 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/ITQ002400954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca1998a109dd4f31a1b8f2af63ca25937d1d848055124f89a38ca0dfb8d206b. 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/ITQ002400955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd2acabf9018c40764a5c86bb6e60a41dc43a8e8f3d7f4459212618c8ede2d5. 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/ITQ002400956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c06f2b8047bfc8ae523b5f9d55561f5174307983f74c3ca32ce6bfb95fb9302. 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/ITQ002400957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736c92428abb97ee1d4b87134e997a4d7b23b2ba0712119386039f5873e40304. 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/ITQ002300483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0fc19c946a4f32da2749eb9dfcbe8b6e7b633b04c8cd24643cc98c037e525. 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/ITQ002300484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454f04706bca43a376617d4dd22a58651547359ba7852a8341d28e479435c46f. 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/ITQ002300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e8df41bb3428bfbdd58ff6dbe2f539ec31af3bb7a2492595c158dba49b24a1. 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/ITQ002300487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6cb7f441e1e49852280fce83c3d6af528b52d8fcad16a701aa21e3e92c01af. 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/ITQ002300488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bf96d8afe3878df75c8de6a85a5edf32a3bef351ae797eeb70a6054823224. 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/ITQ002300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e5c9ab669c1e7bdcf4e16a227c39353ee3f15771ba3992629c00e03d6c53ec. 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/ITQ002300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5390deb7ef9eb50d0ec886bb492ca9ab8d63e38e52e28c0b66de8b6d79403c4. 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/ITQ002300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6150f2bffedc4f14c20ab73a0f030a9d73f639c1f354864cf347ceba50c4dc. 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/ITQ002300491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839ad37af41959dbe5a807079ff4e5d995e8d74307085f4760625c80f3e2aca4. 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/ITQ002300492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c5dd660109b4f02f8657a7229c9245d43c3e13e2e65415879ed4cf3a3bb3e6. 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/ITB002200967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8112d8720a23e440c7b3d084f845f73545c4258b63fd33ebf8963c2b2e2eacd9. 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/ITQ002300493.
BENJAMINS (feat. MV Killa, Yung Snapp, Lele Blade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bd9ce0863d00e1539d8420183442a17ab6ae676cdaa4b02b057f5403c3d3c5. 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/ITDF62277091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de00cbfb84404fc08db98534a19c52cd2372b23e8b03cd7d98119f45d72a3ce. 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/ITDF62377041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f375813de9d889fce72e78d63e9b88f75a4c5098d7298c5fbaa96750c96b94. 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/ITUM72400425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fb3d834b87f6fb35710d246e9d00bec42b4ac8d9b9a6f5e033e77dcfd46002. 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/ITQQK1900004.
HORSE DANCE (feat. Yung Snapp, DrefGold, Side Baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7a9422363aa06cd56fcd4d3b3f6a276cbbed35529becb8973815866e96ef56. 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/IT4U12300052.