1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xef473b3c5cf598b3d8f158795cb8986945ec4c93d6ece289c567e6ddedc48e61. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f49b88d-e6c7-4ccf-8f1b-59b61ba95857.json and https://artists.proofprofile.net/proofs/artist/6f49b88d-e6c7-4ccf-8f1b-59b61ba95857.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Guided Tour of the Baroque Era, Vol. 2
Membra Jesu nostri, BuxWV 75: I. Ad pedes: Ecce super montes pedes
Furwahr, er trug unsere Krankheit, BuxWV 31
Wie schon leuchtet der Morgenstern, BuxWV 223
Nun lob, mein Seel, den Herren, BuxWV 215
Sonata in D Major a 8 viole con una tromba: I. Allegro
In nativitatem Domini nostri Jesu Christi canticum, H. 414 (Frigidae noctis umbra)
In nativitatem Domini canticum, H. 416, "Usquequo avertis faciem tuam Domine": II. Suite de la Nuit
In nativitatem Domini canticum, H. 416, "Usquequo avertis faciem tuam Domine": III. Reveil des bergers
Sonata a 3 in B-Flat Major, Op. 4, No. 9*: I. Preludio: Largo
Sonata a 3 in B-Flat Major, Op. 4, No. 9*: IV. Tempo di gavotta: Allegro
Sonata in D Major, No. 1: I. Grave - Allegro
Sonata in F Major, No. 10: Violin Sonata No. 10 in F Major, Op. 5, No. 10: I. Preludio: Adagio
Sonata in D Minor, No. 12, "Folia": Follia, Op. 5, No. 12
Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": I. Vivace - Grave
Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": II. Allegro
Fürwahr, er trug unsere Krankheit, BuxWV 31
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 → block OTSBitcoinBlock must exist at that height 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 0xacca7391b1ef34f09af6823c9d5563f507d861dca30e8455f7754d929679f07c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKAND8929101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0faa1013d766c558f5bfbb7e742a9029438382e969503bb330927c31f4990ff. 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/DKAND8929103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3684afc8c2f6e4b09caf1e7488ff19572e46ddd29fc23357340c5198ffb8af79. 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/DKAND8929104.
Kærlighed til fædrelandet vers 1,2,6,7,8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1c4b5324029ed2625687d70a527fc62c2ee96468d7fb776826f9482e83e804. 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/DKAND8929108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d705681b712ffc8f7355e3e5d937e1b4ac3927a6dd47126bb818137a50e422. 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/DKAND8929111.
Der er ingenting i verden så stille som sne
Bedstefar, tag dine tænder på (April, april)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee673bd00e744b5ce82888c4cff9a9e05ac7c6e594a5901a19d883358dbb143. 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/DKAND8929115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e30845afac19a56a1db4ead3d64209fe9725a41b18734516d59c2acc8a127f. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/DKAND8929116.
Du danske sommer, jeg elsker dig vers 1,2,3,6