Joseph Ira Dassin (November 5, 1938 – August 20, 1980) was an American singer-songwriter. He sang in multiple languages but found his greatest successes in France and the French-speaking world.Accordi
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 0x3d200da8cde4293550499a2b2f3ae9aa8501e396f86c40d3a3152b5affd9b06c. 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/eecccf56-1f0b-417e-a760-58987991ca1d.json and https://artists.proofprofile.net/proofs/artist/eecccf56-1f0b-417e-a760-58987991ca1d.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 0x3194be223321fc30409ef26520046ae56aa9058422a3050ea9fc1638a82670c2. 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/FRZ087000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5835b566e71bcf578f2c796c120b41384b170cb097def714fe3cbad3c2e0a7c5. 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/FRZ086900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186d0e099a1169a1570d1001a9dc52d04685ca6d5e292f86fdea4827e6d1e82f. 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/FRZ087500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f55b6efc21fcda1debff1b4c60239fdc0f45cd1b44dae107095c35eee80e27. 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/FRZ086900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb023e5c9f475c7d75b593220665d3eb81a8898d00dd0cdffb68e7b71fa3153bf. 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/FRZ088200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca57c4d0936edd7e6f23a0be1aa7ade3f6dec03204f3b6a6920017e24e00cfb2. 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/FRZ088200210.
Marcella: Tant Pis Pour Moi (Giusto o no)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215d7e3219e54e4e323065becf7293dd4053cf508c8603690bb164f1872834a8. 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/FRZ088200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58fd80e7f89c11431fd8384e9541e036db1eede9064c2b1781e87986a37d297. 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/FRZ088200680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e6db66037dd9db601f8c6be5806220a517942aa5ed79627636e489140c7a12. 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/FRZ088200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bef4f478cd4e82b04b720f4c9a0f455caaf9bc98e50ea343c7a7caf55bd7ba. 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/FRZ088200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756c9899871e3b0b2f0d0e343a7c498eccb016b196232f8e4c77927851b8ede3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:43:54Z), 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/FRZ088200190.
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 0xf44fdb1d3e6803cfb7e362cf33f17bbf8fe7fd8a81942af45fb022309c7272ea. 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/FRZ087700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee536093047dad8cfdd193a7f0fd1646b4261ee8c5d90aaa8b539aba22f7376. 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/FRZ088200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7e41bb0e0bd86eebd3da3aa79bfd545d7324ca0b494b1bdf98199c542aad85. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FRZ088200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8406aa196d559d657d49e992930f01beb6e5e2cca7ded74ef5f8f856674e1441. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ088200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5627cc3f4a23765a8a90429622d30e50007c8074bf3a8159dba7a29f1a3761f1. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/FRZ088200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9a2828b745c6af7bf5e432e980feb7c936378862d6977f06103dce9c669e3d. 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/FRZ088200170.