thumb|250px|Robert Holl (right) and pianist Andrej Hoteev after a concert in Rotterdam 1990 Robert Holl (born 10 March 1947) is a Dutch bass-baritone classical singer. Life and career Holl was born
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc82dca22c1f9ade5bb4469b2d9ad6630954ffd4f4b00ff14a447e5fc57003. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c0c5104-31b8-49f6-91ef-3c261fb4cf21.json and https://artists.proofprofile.net/proofs/artist/6c0c5104-31b8-49f6-91ef-3c261fb4cf21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das Buch mit sieben Siegeln, Pt. 2: Wir danken dir, o Herr (Chorus)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0be5cc5c8b9a243e5c2019fcb5b3b16c78c1b051bf788bac8c3dff7e77a7cc. 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/GBLWD0802510.
Robert Holl singt Schubert Lieder mit Texten von Johann Wolfgang von Goethe
December Nights: Schumann. Moscow, December 16, 1985 (Live)
In Flanders' Fields, Vol. 88: The Core of All Things
Lieder von Johannes Brahms, Max Reger, Rudi Stephan
Ausgewählte Lieder nach Gedichten von Johann Mayrhofer
Sonder - Edition Robert Holl (Winterreise - Franz Schzubert)
Symphony No. 1 in C, Op. 21: 1. Adagio molto - Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d85e6d48d753c15787ad3c90ee447c5b023eca6e77a557cd0d587ec62bb8bb9. 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/NLA508602601.
Symphony No. 2 in D, Op. 36: 1. Adagio molto - Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcd1f06c081eebcff88634a18a790ce5decf2bc1c83b8f82d860bed4de4d347. 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/NLA508602605.
Symphony No. 9 in D minor, Op. 125 - "Choral": 1. Allegro ma non troppo, un poco maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb882a4fac9c3184e07cde7724123ce97d1c99c55bb18c873bafd83ec2d15d13c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA508604401.
Symphony No. 2 in D, Op. 36: 2. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bfc297dc7be0b632f143b647fdd0ff891c97783d7785e3dba213b9130b9dda. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLA508602606.
Symphony No. 5 in C minor, Op. 67: 2. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40f62b5e4d2bc61e641f4ab2141a5b526b1d4afda63b9cf02bd141faade379. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLA508530102.
Symphony No. 7 in A, Op. 92: 1. Poco sostenuto - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17662ded83448524a0e75a5696d9f4ee13ce6be0cb541e2518f39ee74cf5d17. 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/NLA508530105.
Symphony No. 9 in D minor, Op. 125 - "Choral": 2. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24c935519e9f67940a166fffe413a024d953b64ded8c1826a3ba0ed20cbe2f8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NLA508604402.
Symphony No. 2 in D, Op. 36: 3. Scherzo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c73f2750acb75f167b595da8254e36f49584b333bcba6c947f9da6af4d6b5b0. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NLA508602607.
Symphony No. 7 in A, Op. 92: 2. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c30b6eb8f00180d99d695e2c4136ede087cec8323aeaa3f762abdf6f0a07e03. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLA508530106.
Symphony No. 9 in D minor, Op. 125 - "Choral": 3. Adagio molto e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a148125a669498499312b1f7b7828a3c576a3e7d52fd95758b778eed1a2669. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLA508604403.
Symphony No. 1 in C, Op. 21: 4. Finale (Adagio - Allegro molto e vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006f40b8aaae079bd96942934ad461b71a103d1a8a5e2df4134b9ebd1e706924. 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/NLA508602604.
Symphony No. 7 in A, Op. 92: 3. Presto - Assai meno presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3807b5c826b7547b6673ec6dd2b0f910f9843a85c30454872839b8e49319ff48. 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/NLA508530107.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Presto -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4791f37ce6d037a3fb85b96ea0dddf4b81541cc906da96f0a72b187c89f065d8. 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/NLA508604404.
Symphony No. 3 in E flat, Op. 55 -"Eroica": 1. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e08062b81a34f4139cb227fa102b6135b075c745eb82dffac5c0e0bd3a43bb4. 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/NLA508602701.
Symphony No. 4 in B flat, Op. 60: 1. Adagio - Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b87baa4da5e26755eed9071ff827c169bd276329f5f2951ba577f34098900. 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/NLA508603201.
Symphony No. 6 in F, Op. 68 -"Pastoral": 1. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande: Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd471b727e993eb024d240132a6085fc17fba00237fbc7623de8ba8a114dedce1. 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/NLA508601001.
Symphony No. 3 in E flat, Op. 55 -"Eroica": 2. Marcia funebre (Adagio assai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f470b8db82dcedf67faba8715fad560f19714e5c140b21698128a8e119afd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA508602702.
Symphony No. 4 in B flat, Op. 60: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fb6c6a60801c4fd364c08f070b3d6342ae20dba9e41fa40c6010388ce0be47. 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/NLA508603202.
Symphony No. 8 in F, Op. 93: 1. Allegro vivace e con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfd349ec1fecee80cb9f6078917fd8b8e421662a1ac5b91e8e2fe6a520be004. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLA508603205.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Allegro assai -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ce597ad2eda4b4a6373cf5b13cc494c9c5eada237c7cc83cce95491ffc8f92. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLA508604406.
Symphony No. 3 in E flat, Op. 55 -"Eroica": 3. Scherzo (Allegro vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332ddf477c6ea054317ad9290d4083daaf66d0a3714e45b64191d99f1a87314d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA508602703.
Symphony No. 4 in B flat, Op. 60: 3. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7246a77c98c56f89f414e088274a364bf46c6876528fa3843fefe3ffe62fb436. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA508603203.
Symphony No. 8 in F, Op. 93: 2. Allegretto scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea2c282182a298fd56cdc98c50a37bb650ba25e5798bf327cadc1ced6bed1cd. 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/NLA508603206.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Alla marcia (Allegro vivace assai) -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62c6730a9724069d180350bfc4b45d4758bcc6d6ce27008e77650c71beb7664. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLA508604407.
Symphony No. 3 in E flat, Op. 55 -"Eroica": 4. Finale (Allegro molto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e02ac2f5a5d152fd07ec57627e5dd4f0d764664c47450ad0ca379052e8438c1. 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/NLA508602704.
Symphony No. 4 in B flat, Op. 60: 4. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f96f11837c6db2b62509ecc916b31e48181f624904fbd6b1222fd88cd54cd17. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLA508603204.
Symphony No. 8 in F, Op. 93: 3. Tempo di menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a1ab774f81a3272738031194c6cb0619d9cbc39f5da12a5c6e8f2f0a3f10c9. 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/NLA508603207.
Symphony No. 6 in F, Op. 68 -"Pastoral": 5. Hirtengesang. Frohe und dankbare Gefühle nach dem Sturm: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4779521e42c9521130179162d4b1a2e551b24ada9c544cd9685dc64efd745043. 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/NLA508601005.
Symphony No. 8 in F, Op. 93: 4. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5668b166223dc9be18f064d7b42b5b26bfe2b2bb36ea50dccf53e4f41b1896dc. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLA508603208.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Allegro ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86422799c15bde617ef825725bef1df5519f3e3e9c429b83bc579ed21414020e. 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/NLA508604410.
December Nights: Brahms. Moscow, December 15, 1989 (Live)
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - "O Freunde, nicht diese Töne!" (Ode to Joy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69db72ea940cac5c01298ccdfb9126fb71c615c68d2567196172f825c403ffc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA809106004.
Harnoncourt - The Complete Beethoven Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69db72ea940cac5c01298ccdfb9126fb71c615c68d2567196172f825c403ffc. 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/DEA809106004.
Wagner: Der fliegende Holländer (The Flying Dutchman), Act 1: "Hojohe" (Daland, Steersman, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abddcfbe06bfa955cc5bfc84e665e03452df9e4e14a1631477874997dcc52aa. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEA800200251.
Wagner: Der fliegende Holländer (The Flying Dutchman), Act 1: "He! Holla! Steuermann!" (Daland, Steersman, Dutchman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0ab786e9ea422845453e4b727b64bdfc76cca5c4e1b488e73c53699b4ca97. 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/DEA800200254.
Wagner: Der fliegende Holländer (The Flying Dutchman), Act 2: "Mögst du, mein Kind" (Daland)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82eac2290f95e3e57ef3094557f79c7b51095734322801ef14854a2c8cda849f. 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/DEA800200264.