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 0x07a1fab31950a692d4ac3747de1fda7c41ef00e758fc324b84ae78ac616d5d30. 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/1b6a2458-cf95-4a2d-8ce5-904db48e18f6.json and https://artists.proofprofile.net/proofs/artist/1b6a2458-cf95-4a2d-8ce5-904db48e18f6.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 0x9930300be785551486d98073eb0b58ac8cdc4a7ba6d6135c3273ccced7ee4967. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/US25X0704501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf880ae8470954b1ac293e2bf72fe5132a9a439af46f6126435d1d48c37d87c6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US25X0704502.
Bubblin' In The Cut / Lobegrinder - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9ed917bef60ffc5fb489d8d37261ae03a86e24e837454ad610933ec7dc89df. 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/QMDA61394312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9c483ea8df41d10270b2a8094bfee2a5e12340b828f4c5495ef7ff32f52c6f. 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/QZZ8A2483134.
Lightshine (Kaitlyn Aurelia Smith Remix)
Lightshine - Kaitlyn Aurelia Smith Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913b60ab0e8295813a24223852d3b3f0c2a3d152e7abc99d76a77a7bc81f2177. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZZEB2469264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a64dbd9578d861f4e0d5edf29f8123a686587b77fa7033ee3ade7e0bff5768. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZEC2431448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029028c3d998501d8dcc9aa85e01792ae6b26a4271e5fe290365006f2c7b1751. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTRX2561472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2131beabe0962b213ad554e433adfc6a87a88833497dd9295c90653198978b10. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBWUL2528425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce75ef63df2bf8cb1761460b2d79535a98f93226d5f25cf52eb74464e638e27. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZTRX2561462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b619680df150f342449036c37a300f5010c89d08c78a3d39691c92dfc87331. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTRX2548981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4deee903d07f9f37f2334015100da62ee41264c708900afece0b38d501f61c30. 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/US25X2001595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fa2eaa274363e086f42017edf1a28cf2a2cc9d7a5b4c3c889854ea40428126. 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/US25X2001596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dbaf0562b7ec53879c309b257764636201038294813270143a68d3bdb68302. 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/QM6P42468682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3bfcc5269dd505412f08c87359b94827cfc15e49d76ec2319df72d8c1a16f6. 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/QM7282403085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c595eb8d79f89160740bba4a43715534ac4ad31256fa210fde337c4fce43e6b. 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/QM6MZ1816822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfad9a99c38ec1d9a18bd1ab9624ac5ba1564cfc978ce31f9b78ced0b314858. 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/QM6MZ1816824.