Dan Andrei Aldea (9 March 1950 – 18 January 2020) was a Romanian multi-instrumentalist (guitars, violin, and keyboards, mainly) and vocalist, best known for his work with the band Sfinx, but also for
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 0x9bbe8ab55fe7eb7fc2b750845cade4e0abb679af6b27aecea0a9a6a5d90956e6. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/443e0170-6678-4140-ad00-c15078c91e12.json and https://artists.proofprofile.net/proofs/artist/443e0170-6678-4140-ad00-c15078c91e12.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 0x2feebf945d275ba2fb5f7588e52501b80d2b561850cdbac6a4dfd869e4cebf56. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ROB011668054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedccc09eda9c8ac61c003e91d25e99c0f3d9e352cf54ffdc7b451c980888c51. 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/ROB011668055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15430d9de2233bcda020ab02c3869e8bbb3b0183d25cd7929a3e39ce84a39a1d. 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/ROB011668056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5896b030174908b6364a75388dfafbe9c518bab805fa9d8e21d7b0565733d170. 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/ROB011668057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6053900f0c9b7d0139e9d327858bab38e23ad30a391c16722d19bd86c0caaa1e. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ROB011668059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84885870d694861554c912d82e0c095eb3dba446c941f366963b52229d848c03. 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/ROB011668062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb28dadde18fd88b9fc8434f50e6bc65f223143ba125a2094784e242f7016dc9. 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/ROB011668063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fe7a4c683762c14a50dd9069ecc8593d192aaa40c126865270a7cfc8b54811. 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/ROB011668064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f9a2d6ef5c8266f9de4bdbf19c56f07f3d40e851e38ee872987fb30c3a2b0f. 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/ROB011668065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf95c5d6f3540c8a2c0237204dfe4fb604c4d6e8ac15504c820a9e116c24ec3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ROB011668066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb748ffa1bc715ce5e436b23a7e6b18a419b044bcdbf47fa646d18c6cef4731e1. 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/ROB011668067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bf9925e25ce3e1b63909a1e201102d1597e053782c018865baf2db2f26cb73. 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/ROB011668068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad09217411b0a342258488f5ecfc69065d4c876e1a67681edcbb1c48bb42818. 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/ROB011668069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76150012d60a255c12ebb45c050e80cd89c113dae21cce48b4bd2741bea68b17. 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/ROB011668070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe972dcebe4d2603cbe51a3e049191a71514623c99a9b598aa5b29b58135cf811. 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/ROB011668071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf10d1cd195d7270d2dbbe6ee8fab5f4bb9a3bad51e75cfeb9cb490f170e8fb. 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/ROB010804462.