Cappo is a surname of Italian origin, meaning "rope" or "slipknot". Notable people with the surname include: David Cappo (born 1949), Australian priest and advocate Ivo Cappo (died 2007), Papua New G
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 0xf5eeae0aa7e16d602e2d5eb4242d0bd66142aa4f8787d7afbfd2dc289cb21d6a. 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/1dcf5206-825e-4093-b373-16043eec1fa7.json and https://artists.proofprofile.net/proofs/artist/1dcf5206-825e-4093-b373-16043eec1fa7.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 0xab2b785791df10a6cd99706250c96ed0e96147abea795bed25356258c8f21f28. 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/TCAHR2376796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b31334a928e8090c0d5dc90e2d5081166217794e0ed188ef24d2863ba28561. 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/TCAHR2376799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7376ffa27953cbcbedc147c769bd9c1bb3e271ba2d34155a21fb10e1f67fc2fe. 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/TCAHR2376806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6880762605197b82fc3922b1ccedf4d7ab927421bc2d80f14cf24d810d7d0d4. 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/TCAHR2376811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7c42f253d8eb9d6729a6e03f49c2dd55c7eb9f2ced64a566987994281eba2a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCAHR2376814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6a8d56e2fcee812a39932d23d525a514519d6a162126374175fef46b9f4ee. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCAHR2376823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33665251956a482b56a57db57f086380da96d395c5fe1e7f530c8e4455850551. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCAHR2376827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2d327207f26705310f07a88a876fb4538d76afb8dc7c19243c3de7dbbcf13b. 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/TCAHR2376832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b22bca192b511e52f7162f5c36d4214b123af238c329ed2174dff128cbe2b2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCAHR2376834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38b71531c4cec66556f98731e729f8a4da660cb59302c7e8ddefb735fa6311. 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/TCAHR2376839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc182e388c816e758d78c094605aa91805f68949aacd15d549af5f89c6f77b. 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/TCAHR2376846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6fb7bcafaa3ca0f54eff752107a39a403ab9aa410525fa2b8c2a0e041f5fac. 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/TCAHR2376850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0625a6333caa2563e923dc89cdba2726b137388f71e1c7c8ef51c8079322e369. 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/TCAHR2376851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927e165ada63fc9e0e94f77c7e2e5ece322ee77d68e3244e8fb0c9c1db7290c2. 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/TCAHR2376857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcb2a2f061292bb527c8ceca98aa9ba5ebfe7f482c90f68d4c17da9c0e28828. 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/TCAHR2376859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2d81a99a52acdb6a4d63119d2407016412a3459ba4877f2382ee8bc12d560a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAHR2376869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6028854f6804fac320075d2698c3d6d9b580bb98d3d7d51d44c29e63b9febf3. 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/TCAHR2376874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a999d6481013b7155871626fe6135e3526387b575bd61b7daddab84d15a955. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRX201840319.