200px|thumb|right|Dieter Ilg and Charlie Mariano, 2005 Dieter Josef Ilg (born September 30, 1961 in Offenburg) is a German jazz double-bassist. He worked early in his career with Joe Viera in the ea
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 0xcf16cf07b5b6e1bcaf680e3889e6f3387713c5de9b0ce8ad6e505b301f8b88cb. 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/1a359f6a-b665-4fe9-8edf-21e79dd8ef8c.json and https://artists.proofprofile.net/proofs/artist/1a359f6a-b665-4fe9-8edf-21e79dd8ef8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mein Beethoven (with Rainer Böhm & Patrice Héral)
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 0x0b9bc7690986877b362bbd22d2eb14440b71dd7d291074813f5a36010b0a7811. 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/DEA891500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e487d64a175b1085ea5e1c9ba64d47c0deaf8f34104c66e09cfe193e7bc954. 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/DEA891500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b342c0e8a287b35415dd22ba98cf9ef87115192e590f280130442c5ceefa92. 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/DEA891500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d22868dcec12292b1d762f4033e56c452c9cea5d7bfa2ebe2c2f9d3204397. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEA891500080.
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 0xc098101e934652d5d5fdffa254e037ee6f24ac1915aad06cccf9a5b72c4ba6a7. 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/DEA891500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413a35a91d8c94c53637656256131051cc2a7b1872403a309d6d2466383188cd. 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/DEA891500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2dad7f428b0c69930e9541836d44a9ba3d2743fb40b88f6f5fcc2ba23d8368. 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/DEA891500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f8ddc71601ae2f36cafca3d311f04e037ad506c63f79a846ed6fe6950ba18. 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/DEA891500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f7249998c6b24867c4c3ecab4552c4f9998f995dc5ae0d61a2579fb0176926. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEA891500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd43558e68856d95cbcc67f47af702c53ade5e71f417b3dd5d2f451358611bb. 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/DEA892200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bce429c32f82adbbd305960230ac3af6ddf69e777da10bf76459eae67ded65. 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/DEA892200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20690a61f81755f7c3a789d4709c73e2d051dc689fa58cc79ddfeb7b666adcb0. 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/DEA892200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e28e951dcdde78e1b69ca9fad484d9bc5346d3561d3d3b15c370166522012f3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEA892200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a26f3cb6c06a5c2807b24e450bd1f2d11fb3d2aafb0e28adcca92d31adb816. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEA892200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dcd43255691bcfca15df5cda21884c0b5444460b4949213d790703f3b702cd. 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/DEA892200203.
Abracadabra (Celebrating Klaus Doldinger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6658bcf8f87ec03a7cee21d11cdfebdde750b64449e17b9770ed86a264bff738. 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/DEA890601860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefb02b6800c9e30c53b8a9e24300c88687e5103a6c22d734607ac093f65b503. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/DEA890601800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefcabe511a5a784f35ee664b460d765a7cd1eb202fdbc292cc102fd59985507. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEA890601810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebf6c33d0e8216b399109a538215091b662649847a881d20c89cfe20cb09485. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEA890601820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e997266ed016d271c0ece02937fb023f48590e414d2c6fb9166a1c437e96507. 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/DEA890601830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094dd7ee147831362f6680aa9c119506f8fa71cb37606727b7f9099f3858ee4d. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEA890601840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4654518fd80e679b1ffac98b967cf68801efde074569cd646520bb884427666. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEA890601850.