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 0xe97edf17a04c95066a5fee0d7ab63d6fa20cc051963adb613af5c5bab01bda1f. 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/0226a766-75c2-412b-bbe6-9c2f9cc81b7e.json and https://artists.proofprofile.net/proofs/artist/0226a766-75c2-412b-bbe6-9c2f9cc81b7e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910634e02ced3802e4e49bac57a1669ba89d1f5dd5092606943e63901175f36. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTRX2359389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf35c696893a0aa1122b1cb01d2afa5b2087440d5d57b55806687a14f4f8c744. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZTRX2359399.
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 0xb144a2bf47206e548e642f94bc8fcc5f9071e1a134d60a88c5a8d3b4d0242395. 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/GBWUL2415326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb113dfbcb2b7dfbedfe56d5b44cf0c0ffed744f0e63262dbc799c183cc4f9c2. 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/GBWUL2415327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac03926d738e3fcaab74f83b73f240701858a0e85ae1adab14b8594f25ff1849. 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/QZZEB2398754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e169b6e001d96cea06366dca6cfe39359e6dc212a8386a968ba3ac26aac96a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZEB2398756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38994b558b2dfd674c642d694edf4623101e08e5820392dea321672029bc5c6c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLZJ2322300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fed3af2856ca2f510b8f879abcb5606e6f73608e95feda7600e722a84e0c664. 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/BXA1Q2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678800ef4fa9d131d22d39b538af47ecd907b5e74a188ae6608f4ccbb1193fcb. 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/BXTJO2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d56c698cfeb5a81b986d6a93e3c5bfc8aa941aa9c20adc5ca5d49a2d457403b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTVM2226099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef63cc416b7da46d79c4b59575bf3912983408b763b67420d79c8c8d7009d2dd. 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/BRMQV2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c992110e4ac0cf114aeef1e0dc8254d6a02af484034e750bbed41719cf849. 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/QZNJZ2260323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb2f07fa7fbbe597c30fb72e405776d5b5bfac56bd7236fc75d3e484d52466. 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/GBWUL2239035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a83d3e9ffabb8b31e4f3eb60770a62b1b71d2fd0f9afcc57c26f3c8989bf79. 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/GBWUL2239039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44bdd19a70fb8bb33ffa9e1c3045e1417bca553de795065f4125578e0fcba59. 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/QZNJW2222734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6dda5f2a75ceb29c1510b35c7812f91c81f39656eaf122dde66cb60b6928fb. 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/QZMZ92212673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bee329cff34961140aae60d959d1dbd05a732f665bdf72ca40c828bfc4f6bb. 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/QZ5FN2214100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcfd703e91b00cb6174ca592c2b1cd7e4f4b07bb28dc26fdb92ac954866af4e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ5FN2214099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a10032a19a7e361d90ffb2dcf391626ae7b0741d1e0a7f76bb90e3efd95205. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ5FN2203099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0972acebd5fa09ddbe01f1aa2436fda031fca9b54d7ace53bd3685b2a22a62dc. 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/QZ5FN2203141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0199fd22479e941e2163fe159918887ff83bc50322b4c97e9386f2400c688318. 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/QZ5FN2203146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640e25bbbf9eb4c7de715eb90feb421aa63909273c5afbbf56477088b6d1b34b. 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/US7VG2227400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27d1626bfe03ecbb5658913b64fe9dc141943ef18e421e86e3f8394b468156. 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/GBWUL2111107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9824c682f38d83e1a21fb53c90838ec5fd1bcb1e2678ad6dfc386f62085ba333. 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/GBRKQ2174642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92eca4673cf928ecc61d8318ab9ddcacdb14f841c74025543a2d737aad40dd6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5FN2152628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f3f4e2b85ac843305985d8761af9e42fc790868f130cfbb5761f1560c469d5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ5FN2152599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f00055c58a73eac1018a9e4727aa51ca1242b581ed26d037e47086cc6cce32. 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/QZ5FN2152591.
I Live 2 Dance (Elias Rojas Brazilian Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0fe7bca080161a03f02851796218623b390a8289cd94e18906af30c478dec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRMQV2300011.
Botox - Sam Rodrigues & Diego Santander Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf161a67e1add03ad49a78dea5e96312b8454c09c39a4f409b613a015ac0847. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTV32343032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910634e02ced3802e4e49bac57a1669ba89d1f5dd5092606943e63901175f36. 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/QZTRX2359389.
In the air - Elias Rojas 2019 Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aba48f34dd988ae2890fbd4bcb85e4d4aa97c02611bca9970185f006d66066. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZ5FN1935514.
Play the Music Again - Elias Rojas Club Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e9970d044affc9eb3b6b30e8e7cecec21977243841c0e6e5cdbeed4d01193e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USLZJ2366762.