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 0xc8a5afecc87f1ff28b607b3f5d9dcf47e2ee932eaa165555eda437d6dfc70302. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2e1598e-660c-426f-b960-2c2c41ab022f.json and https://artists.proofprofile.net/proofs/artist/d2e1598e-660c-426f-b960-2c2c41ab022f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony No. 8: I - II. Imple superna gratia - Live
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 0x25cd3389f3f38d7a0eb2349a7c6a4027484e90486aa042f25265cd6873ef9d55. 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/US25T0914297.
Symphony No. 8: I - III. Infirma nostri corporis - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c4515cf7956064494c125a9a58f5af9fdf359b08e81c369bc6c34d3e096639. 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/US25T0914298.
Symphony No. 8: II - I. Poco adagio - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa498aa5757bc16c855fe8777d7562e14eb4ed60cc1a45e1829b9dfa0f000acd1. 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/US25T0914302.
Symphony No. 8: II - XIII. Alles Vergängliche - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87bd5967aafad2b714a8e1209d18f3193d13628e2a93c5bc48a63a6eeaf195d. 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/US25T0914314.
Die Walküre, WWV 86B / Dritter Akt: Vorspiel...Hojotoho! Hojotoho! - Ride of the Valkyries
Twilight Of The Gods - The Ultimate Wagner Ring Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e7023b7cc7541f145d1fe8944f504b1bb27a5c6e2dbd73c51e887ec4829fda. 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/DEN961102140.
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
Symphony No. 2 in C-Minor "Resurrection": V. Im Tempo des Scherzos. Wild herausfahrend
Mahler: Symphony No. 2 in C-Minor "Resurrection" & Adagio from Symphony No. 10 in F-Sharp Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833fbcd517ca1541a348101017b81e9fed782e5c56651f9962d02d598783ae01. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USTE10305548.
Symphony No. 8: I - I. Veni, creator spiritus - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69bfcfa8655e6606b3466388410c47c5b055c742e847bac4f17a689e66accc0. 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/US25T0914296.
Symphony No. 8: I - IV. Accende lumen sensibus - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608c8cb2529bd9d6e90bc74257f826752841f2e137a691892b7a934a5e3c8f5e. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/US25T0914299.
Symphony No. 8: I - V. Veni, creator spiritus - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07400166a31793d4ca764cfae894bf58f543393dbe333962fdc1b104eaa21a23. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US25T0914300.
Symphony No. 8: I - VI. Gloria Patri Domino - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e157d742d9cefa64d1278ebbef10c43eaddf9ebe7ce44d739899c65d8091c12. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US25T0914301.