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 0xb2e6509741a298120e077191c48e1f38848978781be0bdc1f82fe5973a6ce4e8. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c99c8f15-558c-4fd2-946d-79f9375a0055.json and https://artists.proofprofile.net/proofs/artist/c99c8f15-558c-4fd2-946d-79f9375a0055.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Frau ohne Schatten, Op. 65 - Act 2: "Schlange, was hab ich"
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 0x6d0f66da89523c31bb6307e168cb28018be703993ce0834a065c394d5882217d. 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/GBF078943522.
Die Frau ohne Schatten, Op. 65 - Act 2: "Es dunkelt, daß ich nicht sehe zur Arbeit"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2955429e61db09409c62b5bb0f110f18d998b96bde8f36d9e86bedadf59f80e3. 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/GBF078943528.
Die Frau ohne Schatten, Op. 65 - Act 3: "Sie kommen!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89588217b0d0c9ae6ebbc5d968bccb0124701b96a48b44f8bd19d31d50c99f78. 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/GBF078943535.
Die Frau ohne Schatten, Op. 65 - Act 3: "Fort mit uns!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438d84725d3089e0cb486d08903fddbb70c8dc8c508a740232a4184faf64b0dd. 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/GBF078943536.
Die Frau ohne Schatten, Op. 65 - Act 3: "Was Menschen bedürfen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebf31060080a59625561ad5345825a7289fd22ea616fe97bbeca418861323ec. 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/GBF078943538.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: "O Freunde nicht diese Töne" -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dac4792183ecfb431a46c7c8c4b5e5d0f75ce349d513fb972dab9ad27423105. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBF078612030.
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
Arabella, Op. 79 / Act 1: Die Karten fallen besser als das letzte Mal
Orchestra of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b51e006c4579492523e4fbf4b2c68d4a4c2d83e78013564cbc2a4b927bc6bd. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBF078640901.
Die Frau ohne Schatten, Op. 65 - Act 1: "Licht über'm See"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d8d396c3f777c6591134d32fe3feb3b051d89d35e7a635a3c96ad998fb9395. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBF078943501.
Die Frau ohne Schatten, Op. 65 - Act 1: "Amme, wachst du?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d11727d8a1eb15c5c4e096585191b01110155e1ede8cca09e5a3ee082c00100. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBF078943502.
Die Frau ohne Schatten, Op. 65 - Act 1: "Wie soll ich denn nicht weinen?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4c02d1ceb84eeb03ed3b60cb66611df9b2a227cecd2d95e5a3aa9d38f0b33e. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBF078943504.
Die Frau ohne Schatten, Op. 65 - Act 1: "Amme, um alles, wo find' ich dein Schatten"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13507551b1ab08479b344f1365d5bae9e07991e680342f469bac7e9b49044f3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBF078943505.
Die Frau ohne Schatten, Op. 65 - Act 1: "Was wollt' ich hier?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92beebd276dcb4c07c67864dcf1de2ab8efbe8f18b3359c32975f63d4abb4b1. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBF078943510.
Die Frau ohne Schatten, Op. 65 - Act 1: "Hat es dich blutige Tränen gekostet"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02d84d0be6f7b9d02d8e8a4c9cc5242a7f15a0042f4bb24a1eaaedc2c1c2f52. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBF078943512.
Die Frau ohne Schatten, Op. 65 - Act 2: "Komm bald wieder nach Haus, mein Gebieter"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9395239a47648264bbf8b45f2f74d2389890c6ebcdaafe2ef82af32b892d5f. 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/GBF078943516.
Die Frau ohne Schatten, Op. 65 - Act 2: "Es gibt derer, die haben immer Zeit"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c450d00d206a6befac9992b3943552873ff81ecab9c4dfa9cfe4c1e9e2d7ef1. 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/GBF078943521.
Die Frau ohne Schatten, Op. 65 - Act 2: "Das Weib ist irre"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf2fd561656d4c718b7aa63cfd694c5b10ea6e88a1f0b0d7ad1b608b55ad6b3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBF078943530.