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 0x1324cd97c5baba0511a6c62d37fffb4802510d091f5fa77c29e9a6cc09d75f92. 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/ae102599-4516-4be7-b758-46da1343a0dd.json and https://artists.proofprofile.net/proofs/artist/ae102599-4516-4be7-b758-46da1343a0dd.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 0x01524c7683908aa24ef69717e2765536fc09ccaeccf0b83d0bc81d197a7e3115. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES61A1341001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863170fa163f01ac587f53917b383bc6f0fdd3e1abf506a3a5611c9358f30f2a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ES61A1357902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146fd8830facc941690ca5c65d4bf875eb7c94e685e13afd1b539ca68e7a30e9. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:32:01Z), 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/MCX241800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb6d28316413eab681d57cd574fe8802855e3451e64efc4e0e1877288cb200. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXC241800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0841091a0ca375219b81ad4a48bb59e0c9bf51fc34f507f4a8555758b08fce84. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:37Z), 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/ES61A1917731.
En Peu de Guerra (En Peu de Guerra Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ffa5003599dafbce6c273aa2c769ac1b6c0e1d4a67b5a6ae5bd9010425b9a3. 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/ES5951906213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eb37911b5f0179c1dd8e9eb5097ee41853dcf1acb1ac65865fe497969336e4. 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/ES98D1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa835be3aa18b282c3a8a3faac68a986ab2fb8f56e2f37a6623cf9f88975822ef. 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/ES98D2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1259a382a83db2568cbac01ebda485e889c426ab6c4057091998e0e13e9034d8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:52:25Z), 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/ES61A2020431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1786a2846d6efcac717a41ebf17bffe4358fb60588fc553ff7034929db5622. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES5952106534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02d44bd3ba7fd7216713fed37724df5ac77e01d18483fd2f06876762775dd4f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GXF9Q2444964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7294c6672ad85f798ea72b18f6280f0560dd035560989d91e16f9eef01a945. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAY2533702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a62b41de62485413cb862f3a2cbab70c6123f4ca170916489c9fe7b3e14788. 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/GX53U2548675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb90d7ddbc912e329b1afd4bcec9abb55a61f8625066d33951109f2d869d00df. 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/ES11D2300970.
La nit està que crema - Mon DJ & Albert Kick remix
La nit està que crema (Mon DJ & Albert Kick remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8733db0ab52fcd78f182117eda37f7b4cec8d02c9fec53a32544c64219b5581a. 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/ES11D2300927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6348790004d977a86facc3b8d49ebecb744261e9cee336d9876ee1695ae85f69. 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/UKXN22493086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760fcd902e2fdf22d8ee02fbfc8abd971473a8d6dba61466325e42fb21c77d46. 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/ES61A2324791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3facb987181166a61c5cd4db65ea8e0f0f4c6f68e71699d5a778aebb0ea693b0. 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/ES5952407035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bab73743916925772f4f51d3077cba5f1aad7166d13ba254d2667f13ab899a. 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/ES71G2412686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302d765c2808ac4b715e0e0f936218dd552e3ee4184faa092854f4f20f1bf0c2. 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/ES71G2415156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bab73743916925772f4f51d3077cba5f1aad7166d13ba254d2667f13ab899a. 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/ES71G2412686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b8011f5795aeacf759fb870fdf56fe75dee54d700dd92bcc92ff0ed271455c. 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/ES5951906215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a8a1fed81e1f8a43c9a5590676cbcc373b912c33228415097c0144fb820c79. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:45:52Z), 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/ES61A2324792.
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