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 0x0d38566a9f9e2827549014f895ab7e7d2d1c52cf19958b9ba44d53549fe0d4ef. Chain 2 (Bitcoin): anchored in block 953689 (2026-06-14T20:27:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69c9e5f5-e3ab-4097-8f92-764b727fe431.json and https://artists.proofprofile.net/proofs/artist/69c9e5f5-e3ab-4097-8f92-764b727fe431.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 0xfb7d4e7e9e99619393ab3cc0e62e6353bdcbecd477c1cfe38f42ed1a394ad042. 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/QZK6N2030914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ead707c9e5067583859566c6878ef3a330413d904b227373ed1d386cc78c88. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZK6N2030915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e1e7d0554e45aa1d9929b3fa171f0ce7fd7870beddda9c225b6bbaece48554. 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/QZDA82007110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebb1230d70ce2ea79a6fc9e0111ba71f5bf23dc28cc9fe5644e0cd7b5b38cd4. 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/QZK6N2030917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afbdbaaaa0e5510e2f899e6ce4e08f45ab8501a3d0bd7a3e16c4c71d9a90671. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZK6N2030919.
Lonely Christmas Call b​/​w Cocktails and Candy Canes
Everything is Cool (Live at Punk Rock Raduno) [Live at Edone, Bergamo, Italy]
Live at Punk Rock Raduno (Live at Edone, Bergamo, Italy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6035dec9c4ec5f25acb3ccc835747efbe974ed8aff27e4c6a22fac9054f5e1. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QT3EZ2455381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762ca1e24cecf3d25f2477ca66e795a4905f134cf3e8cc5454c6398cf751d074. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ72515468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670b80d5f65d1dbcf5f11ff5f4a4999cf5c5317de842b813f79092f599a7c6bb. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/QZFZ72570368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb807c5c7847cc65f4c8d1601089b4ebe851f27deef6696fb30afc9f02e8a7295. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZHNB2579752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c17a95708818f733f7f789fbcfe2c5341f82992536f8b0b1c1a27480faf61e7. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZTAU2305025.