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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dddbace910bb97c0722ecaa799c965d7d33e24eb1fcfb134bd50d42f8ecf1d. 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/1eea091a-8009-4908-a728-187fa03dbba1.json and https://artists.proofprofile.net/proofs/artist/1eea091a-8009-4908-a728-187fa03dbba1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329d105d213e06a0d208d6178d1057548324ce28412bbd49445cb10c7c7bfd05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEHK90804851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e2bc2df464a831e70a9b245af70c1f8d1751bb7fcd62265ff81ff98e8e1361. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEHK90804852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1386c86dacbeafb971dd738f02eb65122ded747c4f7652845d9ba946147196bc. 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/DEHK90804854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0902cd10bcd6d97c674f2e74fb3229007702487f047147ce27e29e908dc1c8c. 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/DEHK90804861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13428773148e382b1ce279a8b13be27d58c20699fd32cb87e69e4901a0d8d5eb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEHK90804853.
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 0x375fc5d46165873cd80e52ec5e980f44c454a45255b295a44bf680f89d2432b5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEHK90804855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d865cd148a6e241a3cafb23c825b101b564040f289fb82157e8f780903ddeb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IT0311100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1def7d02ae9eda6263a918024b7101f80f13892d17de728df46bb7a2c2964852. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:47:22Z), 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/IT0311400113.
Cada Vez (Yavuz Ofkeli Deep Dream Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855fa8d726642e01e417605cfb32ad766a11d59f0cb65b4564c47401743b5a88. 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/DEMA61700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2758887dd228d918408f368be9a63da7a16f5651d3c74367f31ee258c20386. 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/IT0311200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad96a4a2ad846fe44c6129c084f568afbc550dc30c0d7faf55d49fa12ca045e. 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/DEAR41517933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa516a8f8ba7d643ec52d681d0a10f400604e1053e71941e3c71d41cd66d5b. 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/DEAR41625076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a40697f7432fe58fa209bd04afaacc35377a48149d176b8fd810dd4c676d47. 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/DEAR41159979.
Because the Night - Drop the Cheese Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8655f64c147b6d484e498768aa00bbdb347738dab902e75dc538df3c5f73061e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DEMA61904360.
Cada Vez (Yavuz Öfkeli Deep Dream Remix)