Marilyn Richardson (born 10 June 1936) is an Australian operatic soprano. She sang Laura in the first performances of Richard Meale's opera, Voss. Career Born in Sydney on 10 June 1936, Richardson
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 0xd48894237324912c528db83300b3c3370f067a95519353807fd3eec8d6f7ab6a. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e031109c-97ca-492f-81dd-5ec167076043.json and https://artists.proofprofile.net/proofs/artist/e031109c-97ca-492f-81dd-5ec167076043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Century of Music: Premier siècle (Live)
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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 0xb5ce5086cea50b652256e50b4668ee0dc9d9d9b28c03c584fb3878fbcadd8888. 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/GBAYC9003016.
Requiem in D Minor, K. 626: I. Introitus, Requiem aeternam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e316192c8d8773518be655d7d6eae53f1d1dd1055bcec56e23d2d2c6469a8f4. 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/GBAYD8900801.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb492139493bf1d6268d4b6b01e3179f381e1fbd8fc855a4b1cc66fac7e0f4767. 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/GBAYC9003017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ce5086cea50b652256e50b4668ee0dc9d9d9b28c03c584fb3878fbcadd8888. 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/GBAYC9003016.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto (Allegretto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10309507f92b92babe3fa00425777fd1c09d539b6729c6dafd1b8bf979635f28. 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/GBAYC9003018.
Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adfcabc20d5fbd593d54479412ab11c6ddcc1396f91e546e35c8dc371da54a5. 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/GBAYC9003019.
Don Giovanni, K. 527, Act I: Sinfonia (Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3018003825faf3dde0bdd1043af4df7db618b87a7298a56f2c01b6b76bfecbbe. 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/GBAYC9004362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c2ac7f89d52533fab6acbec0852ad2905af657e75eb6c1edc8c524867c7955. 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/DEA800115814.
Symphony No. 20 in D Major, K. 133: III. Menuetto & Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3569e5c91d9ceb947fdb7280c6b4496bcbdf2bd1d3628b1924f27ddbffe4f5. 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/GBAYC9303027.
Serenade No. 11 in E-Flat Major, K. 375: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51173e5706bbb3462bc08bd11291df5a4ef32d49026c6ba9d1700ee6cc5a197a. 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/GBAYC0501667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb492139493bf1d6268d4b6b01e3179f381e1fbd8fc855a4b1cc66fac7e0f4767. 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/GBAYC9003017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ce5086cea50b652256e50b4668ee0dc9d9d9b28c03c584fb3878fbcadd8888. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBAYC9003016.
The Classic 100: Opera - The Top 10 & Selected Highlights
Rigoletto, Act III: Un dì, se ben rammentomi - Bella figlia dell'amore - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1345799e21abb3acd94a420123e21006c5c72ea56bc2cd6c9e50b5ada7af6e. 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/AUAB00650632.
Der Rosenkavalier, Act III: Marie Theres' - Hab' mir's gelobt - Ist ein Traum - Spür nur dich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3b3eac83509adcc56c6a66edf70f34ef9215bf7b7f6597d156314604c512d5. 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/AUAB01450302.
Tristan und Isolde, Act III, WWV 90: Liebestod, Mild und leise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf3ef89c0415a96b6b161ee9896a55e3e739a9ec6e5230923ad56ed29035957. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/AUAB00250039.
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
La traviata, Act I: E strano! - Ah, fors'è lui
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5204328f322a967d6a3e939539f9b81a917469d098a521617eab3a9f6d424d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:47:43Z), 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/AUAB09450107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e43d40c9430a75b49c35a82e33079d53c60a10e87a83e626b8bbd7adcd525e2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AUAB01150398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e48c8b44c97ecc426992ebde5282183246f8cd8e1d68d0f9a52505b3db199cf. 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/AUAB01150433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632f287b367bc9567e652a8061e792682e66d6221e19388b5091b2c05a45aaf5. 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/GBAYC8100275.
Die Zauberflöte, K. 620, Act I Scene 1: Zu Hilfe! Zu Hilfe! (Tamino, Damen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53db4a0298a749d645ecc882f31e5fcd50a222b2777034ca11229b6034d0a68c. 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/GBAYC8100277.
Die Zauberflöte, K. 620, Act I Scene 1: Der Vogelfänger bin ich ja (Papageno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1728e4d28e8ac55b1dfc571e1bd82e220caab86187c94eac07024533d0b56c24. 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/GBAYC9704971.
Die Zauberflöte, K. 620, Act I Scene 2: Drei Knaben, jung, schön, hold und weise (Tamino, Papageno, Damen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310ec5c81e932b37e359574bb852ec4659e7cad9e9f4c5bbda8e7b4d342bd534. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC8100288.
Die Zauberflöte, K. 620, Act I Scene 2: Du feines Täubchen, nur herein! (Monostatos, Pamina, Papageno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc546879936c8f0e96529edb09412897fc011da5a50bc8e028839b2ecb92a12. 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/GBAYC8100289.
Die Zauberflöte, K. 620, Act I Scene 2: Bei Männern, welche Liebe fühlen (Pamina, Papageno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f90764d947501942d45b19db6141bc7d53db6d0a30528e17d225c62b8095e1. 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/DEC628600571.
Die Zauberflöte, K. 620, Act I Scene 3: Zum Ziele führt dich diese Bahn (Knaben, Tamino,)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98e952d8586f55987603caddcddf6cbd3ad9acdab68a3658b0c0a34ff0aa9ed. 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/GBAYC8100292.
Die Zauberflöte, K. 620, Act II Scene 1: O Isis und Osiris (Sarastro, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f495274db0615321125850f80b84108d13cd660397eaf1e7aa92c6c501872a. 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/DEC628600576.
Prélude à ‘L’Après-midi d’un Faune’, L. 86
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc559e665f6037f290141e963085326278e6d3daa114e1ad12e234656f61bfb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AUAB09350062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df69fb68870db3853b58524e291318c14fea153cdf6b3b62aa021b6603fa9b9. 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/AUAB09550381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632f287b367bc9567e652a8061e792682e66d6221e19388b5091b2c05a45aaf5. 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/GBAYC8100275.
Symphonieorchester des Bayerischen Rundfunks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53db4a0298a749d645ecc882f31e5fcd50a222b2777034ca11229b6034d0a68c. 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/GBAYC8100277.
Die Zauberflöte, K. 620, Act I: Der Vogelfänger bin ich ja (Papageno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8029731bc22a5b597b46303e7197c921d84c0968fc11dc723ae94e13ed4675. 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/GBAYC8100084.
Die Zauberflöte, K. 620, Act I Scene 1: Hm! hm! hm! hm! (Papageno, Tamino, Damen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0586aca7298b1de879299ec8ccabc99091ea1eb85013b90f219050bad49b9ce. 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/GBAYC8100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310ec5c81e932b37e359574bb852ec4659e7cad9e9f4c5bbda8e7b4d342bd534. 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/GBAYC8100288.
Die Zauberflöte, K. 620, Act I: Bei Männern, welche Liebe fühlen (Pamina, Papageno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb463be164c9330133302c28e5762d128ea01d435ad1bb26927c801b6746b3ee6. 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/GBAYC8100291.
Die Zauberflöte, K. 620, Act I: Das klinget so herrlich, das klinget so schön (Monostatos, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf0f1c1e54bb5b178d4cc0e2c141042d5e6b55816ef1e1647e3db5d264a3085. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBAYC8100297.
Notturno: The Timeless Music of Schubert