thumb|Ski Aggu at Southside Festival 2025 August Jean Diederich (born 3 November 1997)Handelsregister.de, Amtsgericht Charlottenburg, HRB 252515 B, Chronological Excerpt, Retrieved 12 August 2023 is
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 0x70cc04d2983482155a58377b8b9a1e7ac4c37ac8cf38c77f1346f9f3a0075f6f. 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/414edeb5-0d95-4e12-8989-baae743fdac6.json and https://artists.proofprofile.net/proofs/artist/414edeb5-0d95-4e12-8989-baae743fdac6.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 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 0x5d335c78d82eff807217140ea91a4bd086047b81de525683de41d1855ed38bf4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ea64052aede8a63f992d4351e6b282cfecfabb941bbad7a40ca9b128a1f59c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb33351a7764c277d2e9dfea416f085de1e8c9585bdc8df4677974164f1bbf9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d94ce91cc247a8b101cfd57cde6f2f33665b9cd3c72792bdadc469c934359b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a84a6fdfa8068e5434859fb3135e0769ebf035b90b733312eafed75eedc472. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918e628dc87a69514ce987fa8524d0a76f971ad6af81e0ed27965e2427190c1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f9e75b0e2843f8a07fb0e3c3b0a829081e25f1fa35321f36b71cc29534916d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dcb2a5275144a29266c6ce98bbdd174d29fd948a3039d41f4d14291d7463cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c1211265b43effead20e9003088fadefc5c33cec7dbb6508d83c4f5ec40373. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8053b565053ab242f40eb1fb7edcd1e34489ac6bdbbcad829323f0cd8b1e3b41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c446ab3b67529772f9fd027966220fd58f1fce83dd589a3d45d9ad6f59aa51. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c04f009526bc818c72a15011588960632f8e3319f511e5842ea565859220a67. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5a7f61ce91dd9caa36d32f8e57f9178da59f5a91d1abae100923c83d6607cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ed23f68d889e126f48c30f61cd53c5fbe66332c69c3dea628b6c590947ecc8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56dec04aedaaa24a1caae14031ccb38642c2f0bb9a8efbdeb092e7bd91beb21. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DECE72402947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d91c28cd66b9c742e4161bfb275f4fc49175fa981d0a5469b5667a4dc6ae4db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. 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/DE1FB2300064.
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. 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/DE1FB2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba1183d2bc8bf7c2386587b9cbba33fd9128003f7afc9a4be3fb2540f007f4b. 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/DE1FB2300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe399d1d9a9b1876fe1c8cff3e16684733828391232e062f436c94c075afb9f2c. 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/DE1FB2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a8e89c61dbbc30debf2af8b99be38c79d830480bfa2e688aaab0a5cce71958. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DE1FB2400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cbc317d87c5b5c89137fa692cdc680b399e20d6714ad01f31b6b85fa5d8821. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEQ022374256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3cbaadda7078c98885fe98695f66e29969e71bf8f761a02e1ce8806086b876. 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/DE1FB2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927144242af4a4d656b1654f16046a000f76b28b1b954b726b4b04364d838fce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEQ022116400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d94ce91cc247a8b101cfd57cde6f2f33665b9cd3c72792bdadc469c934359b. 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/DE1FB2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DE1FB2300064.