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 0x7a648e4657e9085db8b476d4bd0bf53e36f19d9a84cf2a9f5c5c74d626090beb. 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/12b8a451-c174-410d-94d2-8d701a938b18.json and https://artists.proofprofile.net/proofs/artist/12b8a451-c174-410d-94d2-8d701a938b18.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 0xe03e62feaafcda15bd599bbc1dc27eef905408f28aa8468567ec3c8deda17a45. 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/QZNWV2138929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa454bbe2516d153da509caf16749419ce75a70d7d107a12a3ca2cabf99bf737a. 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/BK4DA2319228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099cfb12f35c21f27f629bad53fc9ad27117b05df660c73d17def0202ee6281b. 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/BK4DA2319229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe007a1eb9548b9e91898e3617d420fdbc7bffba1c98bdc1f0198d95fc00a5fdd. 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/BK4DA2319230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616383851d15b2b36c7c822553fba75675754e0df6d445e76747507cef44222d. 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/BK4DA2319231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9110e37354c5d0d7b9f1491844a81dc280339b9c9a2f068cad658e0f6c9fbf70. 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/BK4DA2319232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8633399e1c4206aebdaf774f5cc0fbfbf03e994ac80e8f415a9f1dab3e72b276. 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/BK4DA2319233.
Para la gata que quiere un chakal - interlude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df09e3c0fbc4bb85564ed1936dfab2e32115de5976e30e6db5967bf37c29b74. 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/BK4DA2319234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf846f2b59ca65d65a4b17e2a38ea22f6e689c47d50f7a47e8850615ef7e3d40d. 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/BK4DA2319235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390fb9d966df7c02b6da12d4ed419c9be68c7d9e6192f5df16766acad786f5c7. 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/BK4DA2319236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbf7293d10b738350e1811b65096c6051b5dfe904b3fd7a5bca64761bd2a274. 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/BK4DA2319237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66835698db9c601cfe3efe6610a9219680eb90127538753429957ff04b7f5b51. 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/BK4DA2319238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe727c4cfc45dc7ff8055b29709b7f9bdb10bdcee26e699c6bf7b21ad0b856d38. 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/BK4DA2319239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db22b9d4a5798fa6f5854cca02f20b9384045d85be4ee7d1427f9126f574777. 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/BK4DA2319240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8f5faf121217cdaa792afd73d35e2e0d03a9dbfd9a4368d593c4997ec3ddc4. 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/BK4DA2319241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594ebc2c3029d862c5af8404ff8df35bcbf7d3d96b76945ae34fc22f379dae56. 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/BK4DA2319242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc7e4eb72ee351d2f82d610ed5365b9a41719bef8f8e77188713641eaaefa77. 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/BK4DA2319243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6aa9b64201a228bf86ce84d92e5aaff35ff10424b6245efaaa05bd74790674. 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/BK4DA2319244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00407db355340198ad3fdd57c0ccf170ffc3dd4600af45e265a9bb8985feb085. 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/QZPLR2286558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8949df5d26ee8ea5f0ba91113618445dd4ad5cf8da137693c6f81b485a571531. 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/TCAGE2220292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf84735b9e3ecc5c1efd4a7c3df5fd43b1c6861770d38551122eff51c26f7104. 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/ES71G2338124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14f5b0f04c19144c19f7a63ddcb0f17ae3ddf6ba4785025682b9ad6cd9ca49e. 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/QZEZZ2200442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2046fd36763b7d2cd175a3afb12018b54da61176ab8cf03f89c9f002d5e0bd91. 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/PEBQ92239430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa7a925831bdb7e5136188d626edbebf8780a6657bcf67bf1bafad7d764700e. 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/PEBQ92239419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ad2d48a6967e9bd7536f27e967e2991e971f68e76d2ecd37d78ff1fdf3d3d2. 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/ES71G2245458.
Piden Reggaetón (feat. Trebol Clan & Jowell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8e804bc40a1f1d8c343019a8f2dd712c2045a06293132c3f3131881c2a2634. 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/PESM21803002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afbca6782f6c7b8a07efd3352fa0ce3ed499b9307dfd56d60f9260ef71e1502. 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/PESM21703041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc64cac2ad18aafeae83e8e8a264c8d92a574f9fcc9c8efb7631510a3c766503. 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/PEKA19801009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56e2114108e5d0e95dd093eb4b8fce8a4cf4b81533a06b644762008da81cf6. 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/PEKA19801008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae049a760256e6d1c2e94f7d861a68b2ec021ca570155e6fd30fdf2e13b89bf. 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/PEKA19801005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8212f3acc2d2046162634440415948b2e12f9482c19da5a9b533ab66449a2083. 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/PEKA19801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa977a5888b0bd953631bed17213b5328b088788a94862f47ebc90eaf10634850. 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/PEKA19801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eac0f3096780feac499a3236d6731980964961de67e639b57f6c87ab5795c3f. 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/PEER11503003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fef115c14ed0121e6ac0250ef69b21f5ffe03c1b51de4dc9e0dfcb5123a9941. 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/PEKA11502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad75a5e94ab6af097568c7d8ebfdaf17fa2bd3d80961fdb6380c76a5d7f169ac. 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/PEKA11404001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3700accd424b1ff977d4d4a31dc9fa8c370b8ef12ec36ceef10bdd11fcb10c65. 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/QZHN42077555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b2291fab90904e5d4c79d7a7a821a9959373587111ed3527d8e80dd9639169. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHN42077556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129ec9fcd05eda5cc22f65f049f6d5e2ae11f23b3cdc13194a97d17946bbf2c7. 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/QZHN42077557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb51f79b54248496eb5275c7e98067e31a7c8ab5ffad7734aad570ab3960108. 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/QZHN42077560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8f0abc13ea06ebae45fcef54b5532752d6e861e7da01176fce38a88d4fc254. 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/QZHN42077572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee3e8a70ebc7cf79c07834a96bf8e41622bfc0ebfd0f19c2cb58a7e4af53c2. 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/QZFZ52068200.