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 0xf947983453faa99dec3902ac0667accf208ddc488374ba0709299fabbe2ab1cc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cfaad98-1235-44ce-adc9-c65faede4263.json and https://artists.proofprofile.net/proofs/artist/1cfaad98-1235-44ce-adc9-c65faede4263.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 0x0f1d5cdc9142dbb632c6a2bdf73fd4dbec734009f5f358ee0bec0627f2ba89ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5161302959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c4fbb1e2c23689edf6ba87e489b55a154ff2c45a38442dd6be97483f718ae. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:06:36Z), 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/ES5030000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd8948b441e99afc1f20ef54e6a6b19071fb3500433a4ecca4044d35422024a. 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/ES5030000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe487ee4e575038b9b8afdf50dba90f111ec364b908c17dca74daa8c602e85e3f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5030000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f03b5ca7f9a0131c1960c2a54ea83b2a3e6aa3481c2e875aa581ec0de1dbc3a. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ES5030000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f349558adfc39b0a979dd8ff0a1991944c07b4173597c011a80b76bdcccb45. 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/ES5030000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7893a58245b21281612e8097487be0381ea745015361313d36e3b2dcb5536a01. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES5030000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79af849e398d929a4f2987932f13c8f0895f1385fc081537c02201f8d4f7e3a8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES5300825591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edcfae5bee2257d8ff748aa73289ec8f4dec189ad22f4f86c0f134c8a825727. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5300825594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaece52136a025a1ca037e9fa097e5da1554f72eadfe09c92601491eac730e9c3. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ES5301151076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7388270fc2f70f3ab509c6278f1b96f06dd4ba07a284cb3b8abbfb67f7de59a5. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/ES5301151078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1023f6b14c7dd51d2ef1e264b85941d72d8612fbe85ec2cda9924c3ce4672dc3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES5301151081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02015a0f6cf0c404d49e842339e5e75b49566f5d6cb05ccc577870bc700946b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:35:37Z), 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/ES5301151083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aca9b9dfaa8ac5f46b0f42cb2794cc57699019debefa61a2362135e882ecc8. 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/ES5301151084.
Acibar en los Labios - Homenaje a Colombia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353e3c8200974bdd5d72c4b988e40a8edf41541f4c5d272d724e097f0a51283d. 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/COC012134832.
Adosvelas 30 años - Medley Manuel Alejandro