Ruth Maureen Guy (10 July 1932 – 14 February 2015) was a Welsh mezzo-soprano singer. The youngest of six children of a coal miner, she was influenced by church music in her youth. Guy's debut came at
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 0xaec5d21615591e3c35fb11cfe0a0d91f288a3e629e70ad0712fe5c3863d6262f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85cbc04c-81b7-481f-8f97-945c4fe46b31.json and https://artists.proofprofile.net/proofs/artist/85cbc04c-81b7-481f-8f97-945c4fe46b31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Walküre, WWV 86B / Act 3: "Nach dem Tann lenkt sie das taumelnde Ross"
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 0x4d75d255f2356f768be07a0b2118441912692adffdceb8b333ba5f157cfbd7e5. 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/GBF076141631.
Götterdämmerung, WWV 86D / Act III: Frau Sonne sendet lichte Strahlen - Remastered 2022
Wagner: Götterdämmerung (Remastered 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44cc82fa9c34b67686bf623990ffaef1b270845a06a8bcc4c40cf9c0e9d31d6. 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/GBBBC2200705.
Götterdämmerung, WWV 86D / Act III: Ein Albe führte mich irr - Remastered 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef54747d0ce91277afcef60cf9040608a9d565d18ca10e26902a51b9998a4a8. 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/GBBBC2200706.
Götterdämmerung, WWV 86D / Act III: Siegfried! - Remastered 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2a0dc90a813fa0703766ed3a8dbd73d1152d48c5e6e104a91b3a73103f6129. 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/GBBBC2200708.
Götterdämmerung, WWV 86D / Act 3: "Siegfried!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9ce58fc68fc026606aeba1f8a277d55fd277af967882df458e5e3d797f1aa7. 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/GBF071240340.
Die Walküre, WWV 86B / Act 3: "Hojotoho! Heiaha!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf828e08e8d42877a6726e17f3de9c9bc4df7a7e0fea741fffe3395ac47185489. 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/GBF076141630.
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 Walküre, WWV 86B / Act 3: "So fliehe denn eilig und fliehe allein!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6039c1a46128ea6b7b9585415d471cb6131426de64882166cba065c8379d15ee. 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/GBF076141634.
Die Walküre, WWV 86B / Act 3: "Schützt mich und helft in höchster Not"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30749e3f7919780ac0a0ef2b5ea8cb80827cbb1caf97b939148ded29ac12942. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBF076141632.
Die Walküre, WWV 86B / Act 3: "Nicht sehre dich Sorge um mich"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59da5b6da9778fb6056dffbfe689c0a4fb34dab4ae8db49e94674bc3131261aa. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBF076141633.
Die Walküre, WWV 86B / Act 3: "Steh' Brünnhilde! Wo ist Brünnhild'?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe925f9af53a9f4f68b67cb01e40974a07a3f8151061d4ff75dd0b8538ced4eb7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBF076141635.
Die Walküre, WWV 86B / Act 3: "Hier bin ich, Vater"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbddd200f1e086faca98d7ce0917e8b879ae953434b0ac17d58eb49d909b7f8c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBF076141636.
Götterdämmerung, WWV 86D / Act III: Was leid' ich doch das karge Lob? - Remastered 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fa77f9feb616c98c485069d9b5bf4b8d44937622ca98dbb915f52805f0db6a. 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/GBBBC2200707.
Götterdämmerung, WWV 86D / Act 3: "Frau Sonne sendet lichte Strahlen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088e317072aab7b0b0c1637d12c635880c20a2cf64eb4d7969a3c49d5152a1cf. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBF071240337.
Götterdämmerung, WWV 86D / Act 3: "Ein Albe führte mich irr"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38451a41105394addb0526d9836ec8718644e3d4c1ac304f9e10a54d048ce6b0. 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/GBF071240338.
Götterdämmerung, WWV 86D / Act 3: "Was leid' ich doch das karge Lob?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa9ad2f46dbf41886a69b7378b0b36f40786aa4be53f5f148579b99c97e9bd0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBF071240339.