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 0x49cd29beafceaa1beff6a3980fba93c18a9284b5000c49dbebba77a49f38810b. 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/e59544f7-93a7-4ded-85f6-9365a0030a82.json and https://artists.proofprofile.net/proofs/artist/e59544f7-93a7-4ded-85f6-9365a0030a82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chimoc y los Amigos de la Colina ¡Al Rescate!
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 0xc22d7ce6997b3768b2fa65de63cb41aa10d47387e96750cc9a0b8a415e139720. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM91759432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea838d753a385733be227962a3dfa93c632e20900b1f61bd54ca1af7aee7de2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USHM91759454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bb62a422a2dd4eb91f0dcd62e1a1b018b527ae64a1f0f2b052fed4ecbe3b53. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM91782312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0fe3d66385d949870a7ce17382c70d1613dfa99b63fc010fb4f3e20411cda0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USHM91782313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a7a24ddf3f34e33075f4bd876fcba30fc9f05ed9abc9f144cdf07f3daa21f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM91782314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd532942aec3cf1ef92bd44e90179c35b7c0f8ab20f895312243e5199bc687a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM91782315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f302ead4ba7b3a611a72b65af9af34edc87d0e0a931fd9e287cfc77b279af28. 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/USHM91782316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ca5ebc8af4dc460c81ad7ed4357ebadd07c421a94d4bad7cd148040234dea7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USHM91782317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ac46600b851da1ebe157100a62c184106e5e11479801304bf75bff296e5d09. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM91782318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afd4fff4e000e8ec29a26fc09c0b9f64f4782f3ec81da9ae9e515d2be1fdd46. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/USHM91782319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036218fdda051f1f113e2c10f4f0219b62fa03b5ac33c4c26e9b06fd3862832c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USHM91782320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc7b251d11ce35bb5b0f33ae1e42354cddc103f864e7a20b9ceab0438062923. 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/USHM91782321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc5dd95f11c533cdff112b8e06de22f5ec5d09add215611ba25fda0db258c5a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM91782323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e53a4ebd570bbe8c6dec057a11b8670b90560322a5216528242489ef8b0b695. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM91782324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a13f80a10c41fc882c58592ae013406747301e636055d21b7d79d3b2d4afe0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM91782325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37789a03adb7a276a861677b18e7734257aa6d2d05ca29ad53bb11c1d18e4b1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM91782326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb3aeeeb1e1ee8939e00ea3db485ee5e7c4ae34553c7072bc33b2b86ea58120. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM91782327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bb37838ba70c77bd7404776904f7ac8f49ffe1b5858d7ae774d60c12a18d09. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM91782328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2319bee22e5e8b96c59d98f91a6910b7be6d4482a1da704774973728f87d269a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USHM91782329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4f3c1843ad4d5cdb740bd658dcfffb7ec8353c6112fcd5020a988bdc10847e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USHM91782330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb3e544add99a7fd9768f2f2dd21389ddc6cc3a920d29dbb0e757a461b45ff2. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USHM91782331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5f763fc3befd77cb65b200c0613c5a055dda739296e7a58bda8bc29b4be79. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USHM91782332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5230fd53c3c8bff8f39ed34068cc066dd739019804bcf4d5f04b795632eb833. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USHM91782333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be3578959ad8d122cc4594dbe12f5907379ee045d675292ded4d3948cd0e2f4. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USHM91782334.
Chimoc y la Cabrita Conocen los Deportes
Ecosaurio Cuida el Planeta y Te Enseña las Letras