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 0x7f26c1cc7ce13c6d13ea7a42126ee23a8045d71e8852d84b497174400d1edfc6. 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/3ca91da6-9450-4380-8549-b10f57a4b4c4.json and https://artists.proofprofile.net/proofs/artist/3ca91da6-9450-4380-8549-b10f57a4b4c4.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 0xa7f979ecf2d9198647c08b788a9dbcf9e2f8a0e6ca5aa8a2d87e5a755ca04244. 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/SE5Q51701113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b36584f5f2e8f3a54f39e70bacf8ac8c2fbf8b156177be26d020f7a5a6e4f1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:03Z), 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/SE5Q51701117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9e4f48a7b92c3dbfe69e3c7557e0d4eb8e807018a58d2a7a81b7934ae850c. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:36Z), 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/SE5Q51701119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eef241dd3545e7c3f4cd472a3ecfe16ed4a6059b039bc242cbc74f4abdcd6b. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/SE5Q51701120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a4320f2adafdc6dca6abf2ae9d3e5d33e73b8d095c46bd2353582484aad0a5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE5Q51701122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720239087a8505a383ad95a440ea0492db50d96ec9b46fa94417fe7583ce687f. 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/SE5Q51800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf40b96ef10400ab34d3ef54c1098226f6bbeeb987e5f965d0e53afde8887393. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:22:47Z), 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/SE5Q51800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97008fa787ab8ccb7c7362f1ed2e10e45c3eba5b07837ffb3331ffb3b8ab3033. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5Q51800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d1c577350480438b3381cf7a1a5a85fed00d348a3e354a4bfb0f4f61063eaa. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:31:04Z), 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/SE5Q51800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470dcc733eb8b1bea454198dc22612404c6e7fd4c2d16f69d3d44efbeedf51bc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE5Q51800761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c19e786aa272b7fc303688d723668376f713109d53452c2daaf7dbf9056f8a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:44Z), 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/SE5Q51901002.
Can't Help Myself - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153f9c198145cf7f283d23bb5b4d5605fd5dfe074767af3b596a82f3683eb2f2. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/SE5Q51901898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0babb94b1601ff70e512040190938b5e886c505dc7a4aafb8b572e8efa6a289d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE5Q51902294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10acd8c230125bb5adfa5616cd7f858c86f705f4e03777daa12a72a4504ed300. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE5Q51904017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7aeead25249e7971d142f151f889d3ebd8f983a741a4bd974e268d08610b86. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5Q52000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47266316e85ab17b7f1259ab5d443af78082d5745b04f9c1ff7c038fecaec1bb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5Q52000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321f85c339576114784176c6a80598c276ebde3a965ac0325452e1f03741aa16. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:17Z), 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/SE5Q52000122.
Feel the Pressure - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b03471f686be2a2f31dd64c586b84d911bb4cf02e49f1e2922bad5bb060fb0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE5Q52000517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3429c39eac497c43c1db263e7f8a4a8ebbfe58472d2289f41645023511dfb29b. 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/SE5Q52000862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793caeb57becd0f4a399751f094abc5964a23571c6e01667726f72063a1c244f. 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/SE5Q52001796.