Kurt Moll (11 April 19385 March 2017) was a German operatic bass singer who enjoyed a widely renowned international career. His voice was notable for its range, a true basso profondo, including full,
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 0xfad0d4de1c41dac1db3d0135da4c6de7b2d479a4030a35e8da8cf77b1522eb5a. 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/70d79473-7b61-4ee4-aeca-622df8835c74.json and https://artists.proofprofile.net/proofs/artist/70d79473-7b61-4ee4-aeca-622df8835c74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Richard Strauss: Der Rosenkavalier, Op. 59, TrV 227 (Live)
Die Meistersinger von Nürnberg, WWV 96 / Act 3: "Verachtet mir die Meister nicht"
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 0xcb4f823d80a8ac1eee3054f2a5af5bb4f82ff6d662c3aad454fb582dffb954e9. 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/GBF077540342.
Die Meistersinger von Nürnberg - Act 1: "Seid meiner Treue wohl versehen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b88115f2836e8b16d616f11073ae8e72da75a81856d693be3213fa11151b9f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBF077540306.
Symphony No. 9 in D Minor, Op. 125 "Choral": IVc-j. Presto. O Freunde nicht diese Töne – Prestissimo - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef742a8adf17a6481052b74b51e32aa8ed8960adf11cb1b422fbc2ec238085d. 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/DEF057902095.
Die Meistersinger von Nürnberg - Act 1: "Zu einer Freiung"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed685524c2a55ee89764a2b18a77d1fabd35597d74abcd005654b343fca63ccd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBF077540307.
Die Meistersinger von Nürnberg - Act 1: "Nicht doch, ihr Meister"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6276fa48551c1261933f2a1e10a60b65794520e901822aaddc6ec69a4aefd558. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBF077540308.
Die Meistersinger von Nürnberg - Act 1: Wohl Meister! Zur Tagesordnung kehrt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03cc2c0cedf14ea45d8230a294410f6c36ef1405fb4303954905c05e209a97a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBF077540310.
Die Meistersinger von Nürnberg, WWV 96 / Act 1: "Fanget an!- So rief der Lenz in den Wald"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28237edb0fb00b19eb342bb2121cdaf80b24c5419de1d1ae7b747eca752b71d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBF077540314.
Die Meistersinger von Nürnberg, WWV 96 / Act 1: "Halt Meister! Nicht so geeilt!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c04dbe3dc2a24fa40f7e7d3743800c47b494a8285396b3f30545852c03e927. 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/GBF077540315.
Die Meistersinger von Nürnberg - Act 2: "Laß sehn, ob Meister Sachs zu Haus?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38cfb680ffe32e75bb2f736e57d1d08a1a4f932de0ce64506a2da9af599e8e9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBF077540317.
Die Meistersinger von Nürnberg - Act 3: "Euch macht ihr's leicht"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5267819c4e47edd11979175ccbd055d965faf3b3336d56c34a2f7c600480702a. 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/GBF077540339.
Die Meistersinger von Nürnberg - Act 3: "Morgen ich leuchte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e4fe62a11ca99b97adc6dd9984723419d129bbed8bed5fbc641a842e45b528. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF077540340.
Die Meistersinger von Nürnberg - Act 2: "Das dacht ich wohl"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d2a6d13099be481dd85cdc001a1eea37aead91ac6a88e3c3db9f8845227ce0. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/GBF077540320.
Lady Macbeth of Mtsensk District / Act 4: Vstaváy! Po mestám! Zívo!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54741f2759c53e31ff09b5e2662651038b68899e87e3a4ebc9026748e96396d8. 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/DEF059231228.
Lady Macbeth of Mtsensk District / Act 4: Vyórstï odná za drugóy dlínnoy polzút verenícey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34be15cbc56c29dc60efa1d94780bc9363ee773a483e7ba81a8b1fd55df2e355. 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/DEF059231223.
Die Meistersinger von Nürnberg, WWV 96 / Act 3: "Wacht auf! Es nahet gen den Tag"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bcae32bec264d9cccb81dc136cae6fe947e556fd97ab6ce60db3e11d4907d9. 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/GBF077540338.
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
Die Meistersinger von Nürnberg - Act 2: Zum Teufel mit dir, verdammter Kerl!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b94a7131328a2b012a53241a881149d8ef43e0e413a2050173be59b9943696f. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBF077540325.