Alphi was a car manufacturer in France from 1929 to 1931. Only four cars were made. The name Alphi was short for Automobiles du Luart, Poniatowski, Hougardy, Ingėnieurs. The three engineers set
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 0x0db0227ca74ef719cdd8f1ed00b8d506fd3768230aca588f63648a96bda47e9d. 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/5227c0a4-6a70-436b-9515-a142b9aa54f7.json and https://artists.proofprofile.net/proofs/artist/5227c0a4-6a70-436b-9515-a142b9aa54f7.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 0x8a838c94584c8c771dcab2ea9293c4f432bef973882b6cc4c47babdc32343a22. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZFZ62312571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7528ea15cb1f273e1af1553eebd4b1d11e06d53fff3975b643d6f5c0bdc9cd37. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/SE5XG2347601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c18b3514633c6f4c8be3ae9d2b31d308c6e60b614d93fcea7f55b678707f94. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZMEQ2399051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb313297a10f781060fb0c0ff25b903ff23aba57eec6a275620b5e72dfb015e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZNWS2335303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a650d4e28ec5beebe5e8d87dffa8d31bd09db4dbc4738d2a56faeb82beda20. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZNWU2328295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd965871cf0a54621906b243d3744bf2dcac734ac0148d2bf966bc54d96ba15a2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWY2356273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772683bedae85463d45ff31f5975d4ba4174c99b0f1bfe1fda7540b3ef035ff3. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZTAU2383990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a99de49e83696b55e6dd04fe8f5637b53e80282ec76f059c82ea940369f10e5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB82334971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30ebb25742239cce3c64c737afbc349a93f03f25d30ea4c6bc600204d5ca888. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTBC2309048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019a59593b385f00c7747e46fe9311261d6991cf7072879bf7372260fd6b5b29. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTBF2370722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529a0ac3a0b55fa94410504e625143962713f838f84bcd92ff39162160f7920c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZWFG2307191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bad9ca13fa6b7fc5f16c1856aedadd988a2fc428362b4becc8e747ad2df50e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWFL2315408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278c85162bab93ce70c4cb908c9198f1556c8472623cbb8e2f48302e240c571b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZFYY2489860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f111e3f1885abe164339425a2f8e43872c210beb8c3b7e965ca39b4e9d41c44. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ42468896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822397587d0abc9c35231c531ee1c3d525040beb782f464335b7dc3371a8a1a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZDA62410206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ff302cfb38d4b6a532ffc8f7909ae70506e731b63ea989c280bb1bcdc27fc9. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZES52490460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b59ca63de7724c16f4b7a58f7ca1ac80691a001869f6b7f2d3fabdf372934f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZHN32438615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecf4fce2be88882c30d335cc39494d44587a0e87302679e12a47318792134bd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZMER2484967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b560624f421634319856b04baaf5e66dc25b32839f52c375f70015375960cfe. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZNWU2414514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a2ca66fb71fcd531e154693d733d4b23695f64ca34434d8d824c3f6b517aaa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNWY2407339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dcca7ec5ce79b33a4abd3df2e2d68ff702e86bf11d9d3008e2c6dc7fe9c386. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAS2443820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f7d6a5d1a49af4ce261960fc46662ec2321fd221b0e7b9484e2763f6a9180c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTAX2467150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0e7ecd88bc01008a826db8d1e26b91c5433e5fa69276da37bbb5e5bac8c9a9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZTB72467703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818f596caf0c8d20888d5ef3e43a88f5193711fe7a70008576b9197a2fb2874e. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZWFK2458066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462ba388872555dbdad9b7347c6f63f7f4760afcc658565ddbc2180ddf403486. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFU2401220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe263be1c8776c993db3dca66c90bc32c4df22dfae163e4b0b694a6a80d7b360. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZZ7T2484471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85750540e7735f0047064e6889e45bd2a5ca1e6cd264179a1774d01f9e009f17. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZZ7W2472748.