Kai Wessel may refer to: Kai Wessel (countertenor), German countertenor Kai Wessel (director), German film director
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 0x09b5a4e7169caa1e310e6a8e1efba9a4c647a086cf027b3acfdf5e2f8f079dd3. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d188a9f-a91a-4c35-be89-6d4e1fcf3c66.json and https://artists.proofprofile.net/proofs/artist/0d188a9f-a91a-4c35-be89-6d4e1fcf3c66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mass In B Menor, Vol. II [Audiophile Edition]
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 0x559dae0baac343a1798a6be262a657b5edc75c6a785b2d911fac6c8a4e5a2c6a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEB111500701.
Mass No. 11 in D Major / Gloria: IIa. Gloria in excelsis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e00913758167157c96ba941d49164a2a810be824415eb47bd942cc0220978cd. 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/DEB111500702.
Mass No. 11 in D Major / Gloria: IIb. Qui tollis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44631bcc21456840acc3a39f183cc5f1077f0069c9b914601ffeeb7b00927080. 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/DEB111500703.
Mass No. 11 in D Major / Gloria: IIc. Quoniam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf627e2fa8c1d5ae5f58e749ebbca0cd307bf26ec6bc2b97928c467048955a9e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEB111500704.
Mass No. 11 in D Major / Gloria: IId. Cum Sancto Spiritu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf192ec07ab74c31b5e05d3284e2bad3daae3a25bba441015cd2ab72941e33505. 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/DEB111500705.
Mass No. 11 in D Major / Credo: IIIa. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f7f68a6e2c367bed2c0f2e077ef82dc7dc9d1b7f31854f045c97572308b3a0. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEB111500706.
Mass No. 11 in D Major / Credo: IIIb. Et resurrexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e64a7909a72aef873fa798df42b819b6751dff544bcca29f7956d60d28f586e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEB111500707.
Mass No. 11 in D Major / Credo: IIId. Et vitam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd862bbf278eba9e64b0bbcf876462cf8c499bd8d094e96973738b17f8d50041b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEB111500709.
Mass No. 11 in D Major / Sanctus: IVa. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1cec88b3903f340c26e5b1e6e91a51bacb93371b62f43b2d7afec135e939da. 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/DEB111500710.
Mass No. 11 in D Major / Sanctus: IVb. Pleni sunt coeli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339c63f3e6297df9c1375a662f28c454611e5175ed4c260a626ed57d095a93c4. 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/DEB111500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d38c79198f8f73140d3187f6ec2011af5b1a910cdeef8851cc2c4ed157b4e. 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/DEB111500712.
Mass No. 11 in D Major: VI. Osanna in excelsis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2063c7bb3dfe8dee05fbc75e0189660e369ec171403ad2750907abad0de940. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEB111500713.
Mass No. 11 in D Major / Agnus Dei: VIIa. Agnus Dei I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e179dc3f0cbc54a7625f5bb2133492d3c3a444f5e48a8c28c85daf2571be86. 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/DEB111500714.
Mass No. 11 in D Major / Agnus Dei: VIIc. Agnus Dei III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7537e8438849a5e2ff9dab3215e625ef1ae02d42761d4165f140989c29ea9a11. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEB111500716.
Mass No. 12 in D Major / Kyrie: Ia. Kyrie eleison I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97364b4f7ccb36a813dcf7fc91fb3c8ba92ba9655b7c6b60e9a9ab47f605b883. 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/DEB111500717.
Mass No. 12 in D Major / Kyrie: Ic. Kyrie eleison II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16f4bfcbaa8dbb7ff3b035021db8898667415c4d5c321c1a204ccdbaf2268cf. 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/DEB111500719.
Mass No. 12 in D Major / Gloria: IIa. Gloria in excelsis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51aefea39d8193a8d23c03d8fdf0a320d72748e1a3874297e76177f5583cb54. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEB111500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cd7757473d5f95da65ef6cf86cdeff41f65e7c451f6c9fba0d5c49d25756eb. 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/DEB110902701.
Teseo, HWV 9 / Act I: E´ pur bello in nobile score
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15829cfd4e489f04c5b30a6338b1a2226f98c94bb2d5b23d2a4d40ff65cd660b. 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/DEB110902704.
Teseo, HWV 9 / Act I: M'adora I'idol mio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b7e29312a29836c222cad3315b9babd3ea480a760204c91bb8f7cdfe1a14fc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEB110902717.
Teseo, HWV 9 / Act II: Dolce riposo, ed innocente pace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60007e2f1a944f1f0f2f488ca6b7dfbd3b99df7aa1b0e00ade2a11f102271cdf. 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/DEB110902718.
Festmusiken zu Leipziger Universitätsfeiern (Jubiläums-Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbd84024eb24a1baf6a4ca15bb5d6988250c8069017fce35f0894d6e4cc98ef. 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/ATK940625401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdfc7b98cf5f5aa6661a7f50b3bf9170aa137c3062fbf002b326fff3b3b75e4. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ATK940625402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e2c2959319ec66cac775b9f8f6a507490e405d38e8c41d50e1ad0bfcd8cdc0. 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/ATK940625403.
Salvatore Sciarrino: Luci mie Traditrici
Missa omnium sanctorum, ZWV 21: Kyrie. Christe eleison
Jan Dismas Zelenka: Missa omnium sanctorum, ZWV 21, Christe eleison, ZWV 29 & Barbara dira effera!, ZWV 164
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53da39accddf7f59283a9e3247f4c5c67f74974061f7598c61554c81f91904fe. 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/CZA301100002.
Missa omnium sanctorum, ZWV 21: Gloria. Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe7529e7637b96299b407eb3d0a946d87e6af07741422aab2bbcc124e80b81b. 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/CZA301100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe284c6dd0a8234c8640c9f027cdc23c3ba4b51bb45a18c4c098e22053138dd7b. 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/CZA301100010.
Missa omnium sanctorum, ZWV 21: Gloria. Quoniam tu solus sanctus II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c971becb985b47f078467f1e595c6e1cecc5b1b4d87c9aae982e6795e30352. 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/CZA301100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b909b00cbe89b8dcd665c4c35d0ee8936f5a7624b5c9dfbb0fccfd30b4e87b. 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/CZA301100016.
Barbara dira effera!, ZWV 164: Barbara dira effera herbreae gentis rabies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9d9b3c1c146e3c73ff395943b1cc93e45a91173b7ffe5a233cdd73df7084c8. 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/CZA301100017.