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 0xc8f17fa0705455ec730c587862319eac81f1608aa1423d92651109972bb102e7. 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/6633d881-3837-47a5-b787-667dc2cc8c25.json and https://artists.proofprofile.net/proofs/artist/6633d881-3837-47a5-b787-667dc2cc8c25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cumbia Nahuatl y Sonidero U.S.A. (Directamente Desde Argentina) [Serie Latina]
El Jefe Sonidero, Vol. 3 (Directamente Desde Argentina) [Serie Latina]
El Gigante Sonidero y del Pasito Duranguense
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 0x8888dabbb38775b5bed5b3ca78c1a0f60327d260accd35e6124c14a28b345ec1. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/MX3141100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c112c4c6d05cecbb59648981062ac7f4aa2ccf3692eee041bc720bf6f2b38e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MX3141100392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0626ef349bba84067142898f447127bc6b61d1d2254c5d86a631aee2ec28908f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MX3141100393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ee2edb02a54532404b6a2207b5f9d11eb1ed5f4c830665b3987950c03c1a75. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MX3141100394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47be62b32c852709b6aff7913d929cb301b84bb0e9884a0a44a810092af9547d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MX3141100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e992e5a86c0ccff03d76509a91bfd8221ffec1cb80a0462c4df58f2e3bf6fb. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/MX3141100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13195e3df08387cb9a5052c8019fc039c82e076673da0d2e1f892cc9dc0681f7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:55:12Z), 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/MX3141100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0c269a771ee94534c3f640aca00560f945386fb2930366745c6f390b40117a. 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/MX3141100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214d405067e957b3d3cbab9e3099ee249673d85ca78c9c7a67b99474af6225c7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MX3141100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c713a63ed87bdfbd6491feaf120b4f701497982c72beb7dea1b5c6a3a8e67f9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MX3141100407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb431a6b6a770c654b3ef36c79c4aeb0b268799e7b786eb07b760425f9dc34f. 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/MX3141100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2a457d7bde94de565099fbfc356db292cc32f0c8397b4aacd2485216559086. 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/MXF140000445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47204ebc71a5c3f6a8e6152df33de665ff2d23320a29372589352c53528461. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/MXF140000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa35a810946ff2b8a07ee97574960a1b5953249548da2e2f9034fade28a7bb0a. 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/MXF140000297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f8167fd823f69474afe11d39af54b829b100d4d857c7f58326e77a71405b75. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXF140100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5229297ac18d516903a698aa51579192bc17af9c62348b643eb4d453773a346. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:54:08Z), 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/MXF140100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fae496da9212e5063128f51e11e4c02a46cfb6514557069e6a1b1598d9c751. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF140100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa35a810946ff2b8a07ee97574960a1b5953249548da2e2f9034fade28a7bb0a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MXF140000297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364fa7c2e3000a4a2ed1471371b0bab348a1e978a31a14b6c797f3f7ad268921. 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/MXF140000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14d948f998ca2f5fc1d216f04ebe24d9a4a0de4494a5ac099c6b9a5649f583b. 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/MXF140000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f161af38d77fe2dbf6de21a3ef23130933c5ed87500c0c9b8b578f0c26830d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:00Z), 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/MXF140000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063748ef30cfbddcb11e63565ce760c0be78aac1786a861fd7837a1c7c72a699. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/MXF140000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2014d4677b1cd8e57695b7c208eefa802495dda15f7bd16f5b8b9bd62829fd. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/MXF140100541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b877a32f412367505ac1231298a3440f9af0328ddb162c69a0fa25e461d11a1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/MXF140100543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7c4cf89344c1fc89cdeffd25c3cc4256518e135803f06df11bb6a585758fef. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:01:13Z), 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/MXF140100544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe69dde8106281061a211015c45552483fddfbb56583344321620ad6d95ae429. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF140100545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002a12fbe9ba16e43312df96a4f1535ec69a65ceb12752713114ee6dc00abe79. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/MXF140100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1bc5560f7907985bc35618490a924d5046a18415e222fc48c1b6622642f231. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MXF140100548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3664f2fac87f6e58905db6e371f80fb63e790ee6dfb6528bd5550fac3a9e6d. 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/MXF140100551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95d17a9428d7731998dba06981ba8142e5b8f6c25d58a08338dec1d00818e61. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/MXF140100552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7724e355f4dc460b6a7fe9f55b9657221b78f67d0e47b6c6ddca91c1af6963. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FR96X2342546.