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 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 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 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/GBWUL2415326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e169b6e001d96cea06366dca6cfe39359e6dc212a8386a968ba3ac26aac96a. 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/QZZEB2398756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38994b558b2dfd674c642d694edf4623101e08e5820392dea321672029bc5c6c. 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/USLZJ2322300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fed3af2856ca2f510b8f879abcb5606e6f73608e95feda7600e722a84e0c664. 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/BXA1Q2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d56c698cfeb5a81b986d6a93e3c5bfc8aa941aa9c20adc5ca5d49a2d457403b. 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/QZTVM2226099.
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 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/QZNJW2222734.
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 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 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/GBWUL2111107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f3f4e2b85ac843305985d8761af9e42fc790868f130cfbb5761f1560c469d5. 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/QZ5FN2152599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f00055c58a73eac1018a9e4727aa51ca1242b581ed26d037e47086cc6cce32. 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/QZ5FN2152591.
I Live 2 Dance (Elias Rojas Brazilian Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0fe7bca080161a03f02851796218623b390a8289cd94e18906af30c478dec. 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/BRMQV2300011.