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 0x578ebb4658ff777326a500ace11fdf41e94931c55f869aec47bd0c851adc5775. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb8aa71b-a736-4650-9c78-9873db6fe2f0.json and https://artists.proofprofile.net/proofs/artist/bb8aa71b-a736-4650-9c78-9873db6fe2f0.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 0xc6566d5caa2085baa8852084281cfe89218e4302b0dae10d964812a13187d806. 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/DECY52101758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124358280b02dbae72438b0fd682c417addca3dc3dbaddbd7056c04e2ee0395a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DECY52101759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1c60a9385d372d4eb85637456b1405d9cac28252f7c7634d101fd92e83c4aa. 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/DECY52101760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa409e8c873c43c98d17b1226e4f37e13296d9345270dc54b5cfd7f320be3dbc9. 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/DECY52101761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafde8033b13869c25761db945dd8d82c8291f8b2f2b84197f7e5c8b06134a389. 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/DECY52101762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7244618594af095e79f8fcec3b19e258eb45efe1c6a41e4df11a8f3545f868. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DECY52101763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaced50ef8b3472660c672c67623f8af52b3a506ed883bf1debdeaf6e251f4de9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DECY52101764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a204248ad71267f630ac2ca31abc56b26e3ee87c6c79d121624113ab15bf437. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEL022301029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c702f430f4a7081b204e64d0787388d429c8e8522b8c04c997342d13acf599b. 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/DEL022301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e539ca68f25e02606d6f98552000c6de697f481f4516cf681de2637615032c. 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/DEL022301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6885af8c6d7efe4ebc4010842bd36eb4a6af94b8ef89dc827c7ddd95e5ea76d. 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/DEL022301031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64a27cfa60344d36deb13ca21ff7a075fa4558e05947edcc7969bee2459f2cd. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEL022301032.
Offseason Getaway feat. Leo Yucht and Greg Carleton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690ef75834214da7aa90c4fcbb753b3e91b425179509e53df2a4ab309f1c2ef0. 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/DECY52301459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bdaad681b1d3c790c489a188a69b016ea62c8dda4147fcb48a479e12f8504c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DECY52301460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e7b608db99e655a65dfd263079ecfe820403d5b0a6aff0f701fde75d36cb01. 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/DECY52301461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc6a8e4c32e7d1ecdbba2b3d60f79f9655be6b79248ed7e7dbbabf91ef479d4. 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/DECY52301462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8633a92997bd21b8a8575491d2f8a0c32d16e35256f4554d4242f1e41a12e2a0. 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/DECY52301463.
There's Always Next Year feat. Leo Yucht and Greg Carleton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc479528e9675fadb60e2ff9384877eb465191e5e4e8f802837ced9f98717b5. 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/DECY52301464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf943ea79fa52a2ab5d50e4d2289a1ce5e2b9644376f1092b4b9a612f4c264e4f. 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/DECY52100114.