Rio or Río is the Portuguese and Spanish word for "river". The word also exists in Italian, but is largely obsolete and used in a poetical or literary context to mean "stream". Rio, RIO or Río may al
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 0xb35e1c7008f9fd425bbb962bb9357b0ced6d4fb8cb007623a9ef3107e3f5d142. 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/51b9a75f-9e03-4c9d-a06a-e097d2f02ca8.json and https://artists.proofprofile.net/proofs/artist/51b9a75f-9e03-4c9d-a06a-e097d2f02ca8.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 0xc78830ede0caf893b700b6f69fdaad9e42e234630a970de27b7615dffd30a357. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM4TX2056877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067f69b784a11468af1dcc067dabde7bbe4e5590f671bcbe6c651eb9e7593fd7. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:00Z), 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/QM4TX2056878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a539cd3ff3fd027c24df77b35b28172b36dd1867b543aa46089b550d8861a96. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:39Z), 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/QM4TX2056881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb48e0c71a92a051af8253800700877e52326392d0b12acf1e67084db3117451. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2056879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319fa57a5179d0372de5e603b82851d986c7920585f6417ebf34428dfffc64b8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM4TX2056882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616e04447df9aac3dc6eb255136c67909e41215bdbbdc673ffc66eee0eac1b12. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM4TX2056884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d9bc224d07329394bde35d2a88922939683942dd6bd15fb0195a450f172f94. 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/QM4TX2056886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5620b253470d7892c9405bc1481b7efb0934a33ea0587ed5e532168197b5fef6. 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/QM4TX2056888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a96433dfe2b1390c9849f3b1ee1f543956f4b06198130498b7c87fb92821651. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:29Z), 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/QM4TX2095433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0bbb1f3ac73693e341f8127aa7905633b2efcd32b91085eebea387afe5d5ec. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TX2095434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae84af1cf0338178a9adabed38bb193b690cab9b8f4e44b634b13c27c2c8ff70. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:49:01Z), 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/QM4TX2095483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0e817cead1c1eb8b336aa3b133001b04fc7db398be437e4c1a6f75546d4b4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM4TX2095440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30466668a40c590be2cfac2d4852c67d7ca935cc5cdc37403ea7415347cca1b. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QM4TX2095441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3128e3938c25f5c7fa54132edbb65d005f25b851b75177d4bf16116222d9d4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM4TX2095442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3cc5d33a74a174fd88d3b1e8c514f7e9b68db6d99739da366fcf93782e9ec0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TX2095444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd19416674fffcd3532429a3f1533d980a1afec40ec82c2721ea2b412a27079a. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QM7282054741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3f5f6de4da36ce2eafac3bccd874b7de043cb31a32e3994f7af0ee09b1f998. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/GRSTY2201832.