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 0x0e6a05eab559623bb6b84d5c722abbdddf3995f98259a273a03f9441580f69ca. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f10b77cf-acdc-4658-867e-c8e334caef22.json and https://artists.proofprofile.net/proofs/artist/f10b77cf-acdc-4658-867e-c8e334caef22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Are What We Are - Balcazar & Sordo Remix
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 0x147b53ac017b24c2a747c4b7cdb8ec544c435ff7e8eea6e9731170c7e9e77788. 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/USA671200486.
Warm Sun on My Face - Sascha Dive's Sun Worshipper Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a0b2548fa83832fab34814f0ce52a05371d6431cd4a59e7faf4a3aad3085b. 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/USA671200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c02cf1974c55650147643cdd3520cfbfc8c7e6fbbf92e44e1eb040e4f413ab. 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/DEAR42394295.
Love Honey Love Heartache (feat. Ken Rosen)
Heaven Is Right Here - Kiko Navarro Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf7e91923bcd7ffdc70991939b6c06325f874db94d853169f145969163731ca. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA671100235.
Love Like This - Sean McCabe Classic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca42c154e12f2c9665c867649674cccf2bd816634ede4d551dfee38f06692d1. 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/USA671200468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1568ed91437a701128065606d9baf6f4680a919ddb396c023ad60affba3f9cc7. 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/USA671200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7279d2c1ca9b866cf1cd657aad4f00cd4990210bfcce91908e586628c077a718. 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/USA671100046.
Hanging On - Feliciano Vocal Classic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4aeea309adc4704c38eb5ecb02dcf02ed821431ed5e2bf90d83d52f36d161c. 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/USA671000161.
Where Do You Come From - DJ Spen & Gary Hudgins Main Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b67f64ae1772e8b1423807529cf656c91cc03e46b43e3266bb927326a90f243. 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/USA671200465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2caef6c72863c3a8c58da53fe4482908b7d9c25125bee4b22898741550ed75. 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/USA671200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622876a263098a1ebd8560076421745dd789e19984ab7e10125385b4db03bae8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USA671200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94f666340dd605217cc4cc35a89f0c6c046dae81d612068c7f08a982c558c37. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR2X41462672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66831f7d2d6fb7f94b2c36ef18d62fd37bea5d442c4bf75b6bf7409d9aaebc9e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR2X41462673.
From Now On - DJ Spen & N’Dinga Gaba Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba72f3e6621c6b9624302a471c1918ebb183f5e74ac08549e70f4b081bb185a. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA671200439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b6120ee801cc6cc86ba962fa2aef2f19dc409ca26f8e0574b0bfdcc7304428. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA671200443.
Mattei & Omich Radio feat. Ella - MOR001 (Metropolitan 10 Years)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b84f204b4def26882f6de46d6d047f1821b8fa8edbcf1600f5f40b28d51bbf0. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBKQU2084853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4311714d1054bd9cd7798a5d64098aa371e235325ec6803f316fe6950f224bb8. 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/ITLZS1700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eff43e3d28a19cffbe84e25aa215760cbc86db5f9dbc629068413a82ff6bd9a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA671300262.
Nite Grooves Presents Eclectic Dub Grooves, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102b66d724289648529dc99eedff5cd20949bafe8886d6e55b55a417d65fc20a. 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/DEAR41512645.
Love Honey, Love Heartache (Soul Minority Mix)