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 0x1e12d0c5d4a9ab1f777a78811029f20a8ce48adffa04a6515e1eaef147dc8d2d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db128bef-b86d-4391-9e6b-98abbd718150.json and https://artists.proofprofile.net/proofs/artist/db128bef-b86d-4391-9e6b-98abbd718150.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 0xdede11ed0923dfd024ad6a2c8419e6e6b35cf7a5ad2f3f6fe48e693ce2f7a9c9. 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/GBWUL2484209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eae4fc7e6b3e49535105e00c804b008bc9179371e7e78dbf8f3e1602e34fb73. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBWUL2439100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd640bfff27d772fb6a22c408e6f9ece6e2e9304a5b69a753d27d328518635e1. 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/CAF5R2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920526e04f02c1a1d7841d4ffd250c61b252875f4cca729db8ba100c9e5feda2. 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/GBWUL2485611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5964a09321e230ed24de0a06bd0f654477fd64ec38ced4783caa14ac5dfcc0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBWUL2485677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495190d6396fc339c0e05075122b78f830d867cc6b0b7cb2667ed97bd2686b6a. 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/GBWUL2485662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988681343733acb3a772924a48b1a4ffd9c7d51461b52a9108a8c496e0987dda. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBWUL2485612.
Nothing But... Underground Drum & Bass, Vol. 16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132dd3c0b24c178e31f2314ff273d1966726642b324ec9635dc5eadedd6967df. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBRGV2321071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1225ef46da303cdd7e04d75ad20a71811d140da7a95d16047e8e5d051f0ed8f9. 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/DEAR42377619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189dba4a0e56a367dc44e0400c0cd80acc1a36de345faaa3ed364caeef8646b8. 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/GB8KE2212816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fef9d9feacc7932d686fe1b70efa11cae37c4a9331afaaaffb834fa5d31592. 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/GB8KE2212817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34401c98e975bb25a0e9aaf7920f7aeb8e207b9037270f595c61616be020d9cc. 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/GB8KE2212818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729fc7727feae5f28068221f8842f9f35100ec06d0d94faea5d0a270377881a4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DKPW91917105.
Bass Funk, Vol. 6 (Curated by Tom Booze)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ddff2840df051099b2499bfeedf59910d7a28a5fb2c422de80b4f218d51d2b. 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/USZAK2113901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd1dc994ff8767f0c70d86321ffd3f51c3ecd8b9a3aded9368f9214241e12e4. 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/CAUM82100386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82342c8b02e05c1f7cf085a5bee57390c35735af4bb1173bf912a5abe3e5a1c9. 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/NLCK42215080.
Nothing But... Bass, Breaks & Beats, Vol. 15
4 DJs Only - Dubstep, Breaks, Drum & Bass, Volume One