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 0xdc21e24c8547f7ca8705c40216206c6d34027bcecddf6ea48d91e956ce8513f6. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/173a7e50-63bc-4b5e-892f-80bc1274c152.json and https://artists.proofprofile.net/proofs/artist/173a7e50-63bc-4b5e-892f-80bc1274c152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 2: "Alles Vergängliche" - Live
Mahler: Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 2: "Alles Vergängliche" (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 0xfa0ba07c75cd3d932b8db20415baea5a58b4ffff218a56acba8febd0ea3a52e1. 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/DEN961831032.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 2: "Gerettet ist das edle Glied" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1895f13e8d729a411752770c679815739a5b1ed44ce746efb386aff4cb97668a. 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/DEN961831014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0ba07c75cd3d932b8db20415baea5a58b4ffff218a56acba8febd0ea3a52e1. 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/DEN961831032.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Veni creator spiritus" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74fe27f6d51eedea8098f97d3c8b693a2341bbd056c7e4626ac4fa4e89bd735. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEN961831001.
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. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Imple superna gratia" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5b4da64808af72e72ed6325ee28dbd106f584a7c3e06b574fbd5d315be74f3. 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/DEN961831002.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Infirma nostri corporis" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676a587489a6fe7f96153aaf1c65eae3073838ddfa4c94aba52f971f3f8dabe2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEN961831003.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Accende lumen sensibus" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaf523cbe69fa1a7cf023ee2072feb5e50d1ec9e6b56ea382739d07a3a10b23. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEN961831006.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Qui Paraclitus diceris" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ba51463ddd30b30399c0662fee6e25d72db2a3316b3cf9d846223c6c35f5e5. 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/DEN961831007.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 1: "Gloria sit Patri Domino" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76c5026850e0839b88dc31b73cce317d56e234a94f4addaa06d29a090f8ccb5. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEN961831008.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 2: "Ich spür' soeben" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac877b0944c52b6653c9525621353d2ee3eb147c8b28a29c323a6c82c8d3db1e. 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/DEN961831017.
Symphony No. 8 in E-Flat Major - "Symphony of a Thousand" / Pt. 2: "Blicket auf zum Retterblick" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ee6708a20f03286aef4c6517898e093d89d225922d4240ff0d0b33b3c5ed4c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEN961831031.