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 0x8249aa2579d38b8b3d7193ebf1ce01426dff4c3628e134e101cd356ae0d1dc89. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb99337d-b70f-46ca-982d-4939e65db5cc.json and https://artists.proofprofile.net/proofs/artist/bb99337d-b70f-46ca-982d-4939e65db5cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deep Vibes, Vol. 7 (Deep House Mix Compilation Selected & Mixed by Fer Ferrari)
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 0x99a269cab95031999b3e800e13c85759949562e1765bd29d8d5d8b829de9153d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR59R1983570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2aee8b44cf7f63a6525b22bab07452ce8d21bcf2af52d39f17876eb8ea2228. 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/FR10S1968929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40324ca8be497de2aafb3d31120c881da771a84fed76c968a0e3e3549f65abaf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1332560.
DeepHouse Mix Selected and Mixed by Fer Ferrari - Continuous DJ Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f557b37ceaa6032c597642f196024f9145d7379615cc229756340e33166358. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR96X2028372.
Deep Vibes, Vol. 6 (Selected & Mixed by Fer Ferrari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254a11b09589fa01373d9f6cdaef2891fa4729b9006beea10bbae3febfc37203. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR96X1624063.
Deep Vibes, Vol. 4 (Selected & Mixed by Fer Ferrari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a2449772bd29d4d214b7544c7dccbbb0ee1365350e1ce7323dca3d102d2581. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRX281587203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533be6470f54d551596eb512620409dd27f7a1a95df1b5fbb9670b40b36ca00a. 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/FR2X41500001.
Deep Vibes, Vol. 3 (Selected & Mixed by Fer Ferrari)
Deep Vibes, Vol. 1 (Selected & Mixed by Fer Ferrari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1559ff8103ea4309f819072844153e33dde7ca6fe3b8e1957e3dab8fd8590c. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR6V80426466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8375e63eef8de030ceebe1b0b568c93ebbab3eb2925bdbdfd20809761ed72d0c. 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/USDT80800444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e5d0a256c8804d0d0ac10ff4bf34ea2f5efe9067861bbef632586c4ccd6a1f. 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/FR6V81648743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec802a56c6e43c001a343f0802570d98371928a948319003e94898ba53cfb98e. 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/FR6V82081360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556d65d657d27840a13619b618f979a82b05bf2fb9ef0e8431f835206336eded. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USDT81000445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd061e4f93527b9dbfb84d1d3ac3632253a210c57fb1fe8757f414ab2897504b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX452480312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1055ab97c3dd15d9d92048ec133996049d19c211d7b9f14cff4f6f3b79b5c347. 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/FR10S2499867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad15fe25d643a50585b7b373ca5a37000cacd06355931fa4b6e906e7c9b0358b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR2X42302195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f896178e0b2fde652ed2fa010dbb0d8a9f92cbff8dc8a27f03857818bc966c. 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/DGA052221947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd937350e8cb91473e13781893e28ce163cf42e536e2a04fdaedf7b590b4c2ab6. 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/FR59R2273352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a22a27740bfcbdff44685c4d0b9efd7b57da1917378ca8dcc0dc6fd152d59e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR59R2273087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a41c322056671227d8ebda6e85dca7f5557ae60a3a3774fb9378f91371a859. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR10S2256256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8777a8dd6e34b4b29c038c45bdd5c2d4a52536b71dd99230e333741482524d1c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR10S1908331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3496fbbbcc142c6097efe1dd24de6dcb3ccd0511b8dd85d2ef5c782c81becf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRX201793751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553236ca5bfa2fef077ad9dde01f2e7eeb9d21cfb94b602cf45f77421832a767. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR10S1776948.
Let's Do It Together - Yigit Atilla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf745dd1a16eb63c84abace064004b9019615363bbdc2438e8c4e99bb60d50608. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1769513.
Made of Stardust - Sebastian Davidson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf184065a31aefeedda8c25549c2b2505a752cd84b075f6019fe6a183c00c63c1. 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/FR10S1550928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387ae27c5aadb59cecb904f0aba2d898d3707a3eda15129c31591e6b75574044. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/FR6V81348655.