Acho is a surname. Notable people with the surname include: Emmanuel Acho (born 1990), American football player James Acho, American sportswriter Sam Acho (born 1988), American football player as fi
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 0x91a1bea0fd74257d6d8c1286a8e2fa66132fe85a4fb43d60e4ff6bf8718f49a4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48963abd-685b-42a4-bd88-7c0061edb803.json and https://artists.proofprofile.net/proofs/artist/48963abd-685b-42a4-bd88-7c0061edb803.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 0xb97339ac5f529accb00e407f41d30cba7840696afb582276255b81387eb03b2c. 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/QZPLS2183292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56011900fa38343adc719c60bdcaf1830c8c7a0e037937fd12add47c2e68922. 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/QZPLS2183293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dc0c4b9d345f9aecc4016d4e276d9898d7463c20e010ade4b0a30c3034fbba. 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/QZPLS2183294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deab5617e3cb8b19dda71ad74fbcb55dc6c6a6de4fe87822b9936e8b09427e8. 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/QZPLS2183295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56c69c5cc8734bd01bb13bcf43aa48df5daea078ae6089274eb779235b88401. 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/QZPLS2183296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794da474e28575e88fc7f208bb1a87de1f63442d712699d95fdf6d073dbff47c. 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/QZPLS2183297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e7dfd5c7628f4339013132c17cc48644de3fd0512493d7c8ef3679d34b6dc. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZNWY2282626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d7c64be74a91ca5d0c7c93bacbe6699d6419475b6be33722a50266f677cbb1. 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/QZNWY2282627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4050035879593d058abc70cba58423b1d374d826459f9fb477488a440860008a. 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/QZNWY2282628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0413be92125b24d1fa8089c4255b62aa3f009821cfba7644e5fd8dae6984909. 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/QZNWY2282629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe420c12334b9ca485aa672fb2d43c9ecc3164a5dae9be5d4b91383b2cc6c7a3b. 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/QZNWY2282630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc052f4f0c5b5e2feba5327f9f6b00a03135689348030b9508d80112ca47c1dd5. 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/QZK6N2267360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721e07973983d574a720322d9495737194490e747fac4fe82889dee5dc3d6dbb. 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/QZNWY2282631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce7123968080d48a8287cefa0ffa4e790653327850367ba7e99a354c02e9de8. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZNWY2282632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046042da16bc70dc3a256322e6f882d44c7d53433b48ea04d0bc6badcb89cc13. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZNWY2282633.