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 0xc478ecbf05ed63906e45594e4239b5d59d582ad78e5f7bc3165802d22581c774. 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/4a81a00d-41ec-4d74-a6fe-7ca0d3f25591.json and https://artists.proofprofile.net/proofs/artist/4a81a00d-41ec-4d74-a6fe-7ca0d3f25591.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elijah, Op. 70, MWV A 25 / Part 1: No. 8 "Was hast du an mir getan"
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 0x4fc7b982ba4d8e95f6c31aa5294367905da41ec8de92fcd136b5d9b510ba15fe. 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/DEB110800210.
Elijah, Op. 70, MWV A 25 / Part 2: No. 21 "Höre Israel"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092cb2a8472b8f92496574d34364e23221a8b1407acac4aea90e48f019fe3a7d. 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/DEB110800301.
Elijah, Op. 70, MWV A 25 / Part 2: No. 31 "Sei stille dem Herrn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d48395093865f32b75e0a9d3da096e4cb4a074472307384ce5278dd8851f9. 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/DEB110800311.
Elijah, Op. 70, MWV A25: Part I: Aber der Herr sieht es nicht (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176e05294391cf040d216843f5c4a293302f0f09a1da56e62d537b30139be888. 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/DEAD60701906.
Elijah, Op. 70, MWV A25: Part I: Recitative: So wahr der Herr Zebaoth lebet (Baritone, Tenor, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ed7542d8704a9adf818172eb3d20372fccacc885df97dcef0ea85b8d1f85bc. 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/DEAD60701912.
Elijah, Op. 70, MWV A25: Part I: Recitative: Rufet lauter (Baritone, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bf497fc2c25d9ff901da719b866eac507490ef071f9cc6686f370143890fb9. 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/DEAD60701914.
Elijah, Op. 70, MWV A 25 / Part 1: No. 2 "Herr, höre unser Gebet!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343c6610ce1c9e6013c4043dbadba2340b8b60122bea3abfad04c294eeffee92. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEB110800204.
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
Elijah, Op. 70, MWV A 25 / Part 1: No. 6 "Elias! Gehe weg von hinnen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8c0b7a57a782ba36c3dcde124c6a147ad7581d96c5d66110c90fcaeb722eb8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEB110800208.
Elijah, Op. 70, MWV A25: Part I: Wohl dem, der den Herrn furchtet (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dd50117d9d3f8d4c1b060ac9467e37bb100e6c27ecfa5f4674881e5e207335. 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/DEAD60701911.
Elijah, Op. 70, MWV A 25 / Part 2: No. 40 "Darum ward gesendet der Prophet Elias"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c949c3684e3b57d89456d615dc5cebaff709662cd23194ead91ff023c35989f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEB110800320.
Elijah, Op. 70, MWV A25: Part I: Introduction: So wahr der Herr, der Gott Israels, lebet (Baritone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654e701bd4de0a1ed0dc614594216d462b887b848db0c1479cf9bbb5380e2a78. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEAD60701901.
Elijah, Op. 70, MWV A25: Part I: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b41a8d7efb1bf2b50ed3c0ede5f1155c1a44f8e53afce3452705fe4fd94bec. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEAD60701902.
Elijah, Op. 70, MWV A25: Part I: Duet: Herr, hore unser Gebet! (Soprano, Alto, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3944f81579d26da7f4a315ee1a7bda2783f8e324aa38b7e9e1e2f6be1607a9a3. 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/DEAD60701903.
Elijah, Op. 70, MWV A25: Part I: Double Quartet: Denn er hat seinen Engeln befohlen uber dir (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430451102e366bcccc806da7f9aa627f0a957a3b555e8f3250e1ef6400da872. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEAD60701908.
Elijah, Op. 70, MWV A25: Part I: Recitative, Aria and Duet: Was hast du an mir getan, du Mann Gottes! (Soprano, Baritone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be2e8feecd737f8a4495ca7216c072ef2bcf6c802fae1af055f1d6047c1a75c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAD60701910.
Elijah, Op. 70, MWV A25: Part I: Baal, erhore uns! (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883a1b0f35c444106d6c0311d5b6daa4e486da053b1cdf86fa2bd5c2db8a3eb6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEAD60701913.
Elijah, Op. 70, MWV A25: Part II: Trio: Hebe deine Augen auf zu den Bergen (Sopranos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb15f6e638d103395217ec3e1bc7c566024ed93d5dce0d842d472d7966071e6. 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/DEAD60701930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8ba48bae04a38fbd082743febccb5c5d61ea54b131a8ad9ee26f770b49f0fb. 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/NLY330904850.