Aksel Johannes Skramstad Rykkvin (born 11 April 2003) is a Norwegian singer. He rose to fame as a boy soprano singing baroque arias, and recorded two albums on Signum Records with orchestral accompani
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 0x8a6ab6c03388405b99948ab9419016c97f0e77fc264c1a644498855497df40fc. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e4c9b35-032a-4d86-8f61-f5cacfd08271.json and https://artists.proofprofile.net/proofs/artist/7e4c9b35-032a-4d86-8f61-f5cacfd08271.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3573b6aede047c3456d7f42f407dc99b26da7427f8853c6478f98ef1a0e4168d. 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/UKGFN1900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3573b6aede047c3456d7f42f407dc99b26da7427f8853c6478f98ef1a0e4168d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKGFN1900212.
Alcina, HWV 34: Chi m'insegna il caro padre?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8a9e57aa237039907b1360e8c4091ca333fc2562aaff8cadc5efefbf58ec16. 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/GBLLH1643504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43071040f16dab1d022d555aba216a5662329981ee28781a932ae6cded578cb3. 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/GBLLH1643505.
Magnificat in D Major, BWV 243: Quia Respexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e14a24593d356aceb7e523722caef4874c04d197b083cb6d644114b9b865dd7. 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/GBLLH1643513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd3a4ad5936b37d9759ed59e826ad025d694ec4012378f6a69421abf4f62ecc. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBLLH1643506.
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
Jauchzet Gott in allen Landen, BWV 51: Jauchzet Gott in allen Landen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ae56d740e1640aa0dde90de9d5721801d3a1e088eea04df759857e70fa434. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/GBLLH1643501.
Also hat Gott die Welt geliebt, BWV 68: Mein gläubiges Herze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b039a05cb1f64e71672fb1366052f9a58fa1849c36c5c2cdcba753c5c9fd065. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBLLH1643502.
Joshua, HWV 64: Happy, Oh Thrice Happy We
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697aa5b8fb4d66d371347ed91ed179e1553f017a602cab5a7c9f140d65188a9b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBLLH1643503.
St. John Passion, BWV 245: Ich folge dir gleichfalls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e68614441bf6fcd249043160bfca1491e31092d22eda173e833a25bcd691214. 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/GBLLH1643507.
Ode for the Birthday of Queen Anne, HWV 74: Eternal Source of Light Divine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d57f76d1e13ec2a3d0a899a852dbd12b0ee6bb5754fa5254894001831a7074. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBLLH1643508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02725546e5d3898339a282939f403a291e5648297c138c11421d9fd8588ce225. 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/GBLLH1643509.
Messiah, HWV 56: How Beautiful are the Feet of Them
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96c1dcb95ee9c8cdc763cb604f62793dbbf8cb4831220abee6792f0b69a93a2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLLH1643510.
Messiah, HWV 56: Thou Art Gone Up on High
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb147e62dd68e41089e478bb875c75bdac141a5ef831fc31adafaffdeb9d5a895. 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/GBLLH1643511.
Samson, HWV 57: Let the Bright Seraphim in Burning Row
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea2d862911dbb2e504b191a0a72a5282f8a3110e28cea8be2dcc35b4a13cd53. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBLLH1643512.
Zerreißet, zersprenget, zertrümmert die Gruft, BWV 205: No. 9, Angenehmer Zephyrus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543a13e734681b65ffe9e3e2dff3f073d67cdec65aa7f5611ec4e395e9d0b559. 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/GBLLH1643514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461d1a3550e8ad1884d8f0ef4a4c932faa2e61773098656142ad20e9ee2c77e4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBLLH1643515.
Le nozze di Figaro, K. 492: Voi, che sapete che cosa e amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5ecfcbd46bb85f94224ac8f738f72ce77fd6c77ddd6ad2ebd14c0869531301. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBLLH1643516.
Le nozze di Figaro, K. 492: Non so più cosa son, cosa faccio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8185e7b31b73ccbfa437a9790df7c6e0a9a3fc9bd7f33a1acb10628d06048f0e. 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/GBLLH1643517.