1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2cda504faf9edea2d8c00f658e9d8e5f647570eaa2659bcefd02faa50c92e20e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0cdaeb6-dc11-4a2d-85f5-4c5773b7f433.json and https://artists.proofprofile.net/proofs/artist/e0cdaeb6-dc11-4a2d-85f5-4c5773b7f433.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 → block OTSBitcoinBlock must exist at that height 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 0x2c388499424da9ba11bd280ce83865d0ede84aaa3fd791a84f834e24b70451e1. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USSM19502541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69469fc482e223190e483f3640b1906c8f80f31f9ba4ed944cc1a21e3e63a4. 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/USSM11606971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48861974087194da2f265322d39f412bb65381c334704ad092586ab47bccb61. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USSM11102117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d547b985bc6c5647ba0073a965b45f366b28c8443596dcd450ae1dd6fadc66. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USSM19504746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7df8d9b8ccf681a131dbb44b3ece9b9e83f1c61de72f79672dcff9c7718478. 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/USSM19600336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50206485068fd00dfc76dc68c07ba0392e7088ac670c86ca6c259acf12c47dc. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USSM19600344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b1f297933f9da2d34acf6188a6d5131e42636506081ee42983b39988bd9c07. 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/USSM19602882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac04f9742d91d7ba64e81534e392844b7240a0453c8af6fbc36ec2870ce9cf. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USSM12204698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb76a4ebe68f9c27d7e5d9512afc4d7d05a15ca245aeffc5fb5d47ddfcbf19a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USSM12204699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db48b44d5bf9ffba2ad3374b3ad4112132fd4a66b03ddd681cb5737d46a9e95. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USSM19600335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7df8d9b8ccf681a131dbb44b3ece9b9e83f1c61de72f79672dcff9c7718478. 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/USSM19600336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77a703d7fd59dabcb45829d5b0991a12c3adc2d748c9fc73983317b917c89e9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USSM19600337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a78a800279865be016602ba1a249d747fb7839d6283e79949e15bf10583631. 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/USSM19600338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b6e161997c047d613a0b4cfd894222ced49fb621f8580a6ffbdf38fa3289c0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USSM19600340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50206485068fd00dfc76dc68c07ba0392e7088ac670c86ca6c259acf12c47dc. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USSM19600344.
No Strings Attached (feat. Puff Johnson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa6ad4cf33888a886ec431adbc730f5aa7dd994330c47dcf1f9107fa159855d. 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/USGQJ0910011.