24 Horas may refer to: 24 horas (Chilean TV program), a Chilean newscast by Televisión Nacional de Chile 24 Horas (Colombian TV program), broadcast by the programadora 24 Hours 24 Horas (Mexican T
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 0x202622bfca84930dd3720e2483d26f6863bcb03dea91bfe4280d780ef832117e. 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/78f602ad-863c-46a6-90af-8ccc83a314ca.json and https://artists.proofprofile.net/proofs/artist/78f602ad-863c-46a6-90af-8ccc83a314ca.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 0x4e447f6d68f764339c5c9c8ce19adf627c40567117455d9a48554f2f13302d0e. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/USUG11003765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b3527b6590e91e4d995f9c0ed6360fb9fafddd975bad2a9a26f8ac1486c8df. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUG11003766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0d91afe27ba563b04fd4ace1c69ba65ab31caa58f84c2bf2dc980d0be7052b. 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/USBMS1500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34f233fca9e113a8653639310aa7ebec2a48b06c1a674f39838bc6c1297c47a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDXS1600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7bfaff4a2a4565afb654414e0eb065b7e1ef72521f0f16af088bb846f233b3. 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/USDXS1600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff9ae605891bd3d2cba39546ba9edc692a8f68c59773ce841da9eeb66a5a5b9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDXS1600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768698d140329ca038baa061390ba568c5ae05a9289e5998722ff7b47a3f613f. 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/USUM71025799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4bd760e66174d55c547f259c64eb167497586cfd3f7bd63af3b2a6dd447283. 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/USUG11003736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768698d140329ca038baa061390ba568c5ae05a9289e5998722ff7b47a3f613f. 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/USUM71025799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4bd760e66174d55c547f259c64eb167497586cfd3f7bd63af3b2a6dd447283. 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/USUG11003736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4bd760e66174d55c547f259c64eb167497586cfd3f7bd63af3b2a6dd447283. 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/USUG11003736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b3527b6590e91e4d995f9c0ed6360fb9fafddd975bad2a9a26f8ac1486c8df. 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/USUG11003766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4bd760e66174d55c547f259c64eb167497586cfd3f7bd63af3b2a6dd447283. 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/USUG11003736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032499616c8a79122d1e7774cf7fde9781e37478a81ac30962cbcbfa1e69d61e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USUG11003764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd445c23899a7bbad6a0db54729bdf46230d6e7d14bb1c23f7b1545686a2811. 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/TCADF1799548.