thumb|Richard Versalle in the title role of Tannhäuser, Bayreuth, 1985 Richard Lee Versalle (3 December 1932 – 5 January 1996) was an American operatic tenor. Life and career Richard Versalle was bor
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 0x05df27fd0c46b405560b2319fd9419ce884fd824d44e80206453d87aeb54514d. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9357bc5-73f3-4ace-8229-87d0f448ccd6.json and https://artists.proofprofile.net/proofs/artist/f9357bc5-73f3-4ace-8229-87d0f448ccd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": II. Final Scene from Goethe's Faust. "Alles Vergängliche"
Mahler: Symphonies Nos. 4 & 8 "Symphony of a Thousand"
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 0xbf85f55583882094bec409bc9455553f3ab9176eced10510f6b7a6903d5ecf33. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC8600537.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Gloria sit Patri Domino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4568667cae77693858d0804b680eb1481ffc6205a9bd03ec6db4783057a822f. 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/GBAYC8600524.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Accende lumen sensibus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75efd02267b582cbe8db9f8f8815c92b3a81d2ab24e12c50505b6786029ee963. 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/GBAYC8600522.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": II. Final Scene from Goethe's Faust. "Blicket auf zum Retterblick"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ae6748dcb7a8186b40a334aaf35641aa86cc4ff11092dbf7c72ce5f2197a59. 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/GBAYC8600536.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": II. Final Scene from Goethe's Faust. "Höchste Herrscherin der Welt!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c7f57899a7a22a35a0c2960fefe9419cd8d046232531568d5d46a6984ddc1a. 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/GBAYC8600532.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": II. Final Scene from Goethe's Faust. "Hier ist die Aussicht frei"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca33976a90ae9f8d602e7f80a3cfa490d44264a4de81c8600a3efed8e7ac4d6. 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/GBAYC8600531.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Imple superna gratia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b4ccf915304966e89ad1e84553d63ac1683949421fa23a4724e3ce4eee443. 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/GBAYC8600520.
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
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Infirma nostri corporis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7597f885be78bc1131813bdbd81b2ae7ee3506e8471483a01f687ad649c3cf9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAYC8600521.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Veni, Creator Spiritus" (Repeat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b704421d4ee61d2e5676d95efa375c030c5251449ec9131d3ccdd313109b614. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBAYC8600523.