Ritmo (Italian/Spanish for "rhythm") may refer to: __NOTOC__ Automobiles Fiat Ritmo, a 1978–1988 Italian compact car Fiat Bravo, a 2007–2014 Italian compact hatchback, sold in Australia as the Fiat
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 0x6f62e3ad85da1bd45998778ba1c358c5281f30201d6bd0a97af592ce1facd550. 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/42fe9cbe-41a8-4781-8afb-bb7de10ca168.json and https://artists.proofprofile.net/proofs/artist/42fe9cbe-41a8-4781-8afb-bb7de10ca168.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 0x7ac7422552f689f59b45209e8ce1948c40d4c7666f0acd5542661c49e960ca1b. 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/DKZVA2000168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf6a40e6e65cb25c53d5f32249000cb365582886589b30f02cdd1f9433d13fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5a10b83fa6c87d2184877237708151b4521327abad93a4d0faa78b2035261e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKZVA2300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ea1077b6b69d51cce85cc31a2f0f742110d36becd9a24da5f5729e928b161c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKZVA2200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddd0462a785763df214b94f25ac47bfad71eb49504211c5f085cfe5500e5e93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKZVA2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef3748174c24697e29de5cfa3ae2c72d3bd3f3a6cbce5ad2bf576b1a892eec0. 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/DKZVA2300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff6d4e66c8402994260e9ff3864a8dd800c474675935fab2d0c6a0c83f22677. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65b58fe07416d0b03cfee6128bb5f7eecd678ce9bfc9c38b8e2eb01c99dceb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DELK11600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd762cef0c5e19440095b3187ce40f0adb82f7604920efb1db18a871604cea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DELK11600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa122bed19ae96bfa5b511b4517d26f3b18ba1089d7d5baf172b39dc5ae462cb9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:39Z), 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/DELK11600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a3f55c1483fd39004aa270087e7b6d0ef27e7896d1b9d9a514787b50705837. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DELK11600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ea4549a2507cbc6dda06ba89e56be5b2fd51665a342bac79759815aea04534. 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/DELK11600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49da3a4a4e1517d745fbea732ade9174b1655fb29d4c07d6dbbc0540e4230260. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DELK11400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa165e6b77b51dd168e7db621fbe74d5591b806a0b62433fecb24b44e062fac. 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/DELK11100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24072f32a139d3a2f4165fd041bf54950ebe9950132187a92f320ed059f70482. 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/DKZVA2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a5ec7da865f02833552a3a07184599a8484d8bbbd10fa6578a361f56bc0150. 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/UKR6V2482809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f5bef874ee90f82fde7b4eb2529486407b50ff5186bc82ac0f81bf5746149b. 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/UKR6V2480620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0483f4d80ac00489417d0512be51f3d7be1668458e01f1b54fd175cc7657b0fc. 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/DKZVA2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be77abd560ed0f48cc573f61a7aa07154fc0777a04552f656f59e93686e7c5e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddd0462a785763df214b94f25ac47bfad71eb49504211c5f085cfe5500e5e93. 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/DKZVA2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ea1077b6b69d51cce85cc31a2f0f742110d36becd9a24da5f5729e928b161c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bd9e20bbf654bba5f8b0eafd15cf92b9c92210d4c7265d5a290f4965928281. 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/DKZVA2200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d5d3c640884c207ed84749dd8ab25e7714a1ad91a1044f2fbc540fb8d17aaf. 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/DKZVA2200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a9a5502f29f62318bd035a323ca2a2a3747075461f4cf5fad3f6698f3e09c2. 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/DKZVA2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3248b60d944b84d55ec9de51d340385e71506031f911a1a88d389290a73ad10. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2000288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df5c4667abbdd240ad6d7ccc107f5614012b46d870729f73dd9896a80c28a9b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKZVA2000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc804c3f519076d6d437992a1d93eb584912ccb4cb5617b9a560da5d35a22369. 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/DKZVA2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc597dcc06bc3203ba6635e4c78ae00922ad25e733c01477bdfaf049153a67227. 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/DKZVA1962476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98740fff77d4374e81f0063bb45c8af3648e7cc1c60fd2a3aa71c68c9e38ea59. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:20:07Z), 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/DELK11900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeddab4979d42d9e2760801aac2e3634828b83087eab0b9eb8e5841ac5d0a8db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKZVA1861893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814ec211e960f49c47d88c0655491c4a517285cb7601a5b115936ba7f3a566c8. 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/DKZVA1861684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28540be9be4dc9eee20693909c945b14a4c8c5318f71b755428a7187a16d5775. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKZVA1962274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5529c9c42ae39fea67b00a1e3d9ef83a993cb468e5fd87860ec8e304c7d34dbe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USQY51719549.