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 0xb18832a4ada80c487e8f4ec1d5e0cd2e29f8f263767166700d066b8a702907b5. 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/f5ec11bd-fee8-4581-b338-b42d13e3e866.json and https://artists.proofprofile.net/proofs/artist/f5ec11bd-fee8-4581-b338-b42d13e3e866.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 0x152348048d3c2ee66f4b8832706c09382cb3c0bdd38ff47fe5acbdae81e34f78. 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/USNX91100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a0fea1200a7b0b878ad9a531fe829e3de3aa026f6a2e222a1be33f02b5ddae. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/USNX91100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad96cf2452afb7ed6244a912bb005d8eea473248b32fdd048808cae83077c297. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USNX91100037.
Bass Mekanik Presents Bassotronics: Bass Buttons Activated
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16de35ae76ff44534ba6a7ef37fb591b814413948df3973ac304225104f419c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USNX91200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9173f38ab2197af8c3a9cc40b9c53e20be3be9d8245b9270ac0f915540c3c613. 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/USNX91200028.
Bass Mekanik Presents Bassotronics: Confessions of a Bassman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029e4c5647724060cf99b50ca21ea92ce6fbe91999efc776f22ccdda1500f51d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QMFME1312745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4593d924549eeb27d9bf9f7189ec51ab28a9a469b44ee76cff599711d62c148f. 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/QMFME1312748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb003cb51e62fdd0bd7e35cc011ef09a317f540d6ffc41e7e1465cc51daf383d8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QMFME1312749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce6c36bb2a6c8785ff714379f7b3896c369514e6b07e4000ff29dd8399cc5da. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMFMG1350442.
Bass Mekanik Presents Bassotronics: Trap Dis Bass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52267d8bda972fa02ec2ba15a6f5fd8d8a390d98c2350e97e1cb78441548895. 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/USNX91400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd412738ccbe2b5cb68a912cc6ebc9d44ed59f7bd6cab7d2af0e4e35b3bc35709. 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/USNX91400015.
Bass Mekanik Presents Bassotronics: Basshead Radio
Bass Mekanik Presents Bassotronics: Woofer Wrecker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762d8317a8847fa645bb5bd06ad46430db37fcd2a35f3ffaf6164137fb57aabc. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QM6N21514354.
Bass Mekanik Presents Bassotronics: Electro Bass in Yo Face
Bass Mekanik Presents Bassotronics: Brazil Beats N Bass
Bass Mekanik Presents Bassotronics: The Bass Room
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d7b12699da55a71e863f7800aca27fbb393431e267a2503c54888c58064ce3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6N21892838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad887bf6853dd486c9cbb7220a35bbd5e3c6ff6f181534301e4cfaef6c8da790. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMDA62292688.