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 0x386c80a65ac260a03b6107a57919bb1876fd1b2cf4b940d216a5e8917e78fd31. 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/90affdd2-2b9d-4a91-a2de-23f2b9bad9a2.json and https://artists.proofprofile.net/proofs/artist/90affdd2-2b9d-4a91-a2de-23f2b9bad9a2.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 0xb150da3dc4e9469a7abc6c6a3962798364bea7fe2559846f4330c3a77996ba3d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BRDPA0500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb4fe0e55d6a79f389ce419730fefcfb73eeba1565666592a7a9980c8f9edf4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BRDPA0500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbb8e953761ad8afb4e7d279bb3e1305f63c5fbfd12cd61c0d42561d4319565. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:07:57Z), 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/BRDEP0500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0a4dfd3135ad7efd2e0a9a58160245813185e490af16675e2e9421dcc5e80f. 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/BRPUI0800595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328c0520c865636d86cd55b7881f1b0e2499ad773584d60cdf8188e67058e8da. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRPUI0800596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d78ab1a630b415dfd41a0073543e38b4d50915a99c0bc2629663fbaf82da905. 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/BRPUI0800599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47c5122e4c1382f370f86c3b8140baf9620fed4db3e04b376164e5ce493e40b. 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/BRPUI0800603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1de394b134eacc4c390c57f807b581850f6aa2b22f12d3506ee9de61f784b8d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRPUI0800606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697c3709b87dd79b4fa26e8a799fb7f533a772941f79c2ba26787f321ed4c0e5. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BRPUI0800597.
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 0xe64a47b1eec9e1c6646a5abe429e5431ab7704a4d87528c547f3051422f9b46e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRPUI0800598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790fa0e595281497b88fd2f649c0cdd542fac862af2b99fd6f193018a398bfc3. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRPUI0800601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e33a3471c6642f0236cc4ccf774c9f7bfbedd784b07e2cf70ea08f5c475048e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BRPUI0800602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf95a6b1259275afdc26463457977dcd842feffbddf69c7f39491de16689fcb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRPUI0800604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda07cffa5574f5f5d4245b0890fb9224fc020b426f52e73d696320f6b65d2357. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BRPUI0800605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246780c885734d0dbd5533be1232ef09f025177387fcb261668c6cce85fd6bf1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRPUI1800182.
A Música do Músico - Moacyr Luz e Convidados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dcd304fdf72f8216f1c15b47c54104dccd9460d0022456f749b9d010c206c3. 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/BXRMZ2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6689de8222b5b16ce6e68614740d01789f218054c7368b4fcd09b54e06df4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXRMZ2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fb489c12267e3c80245efdf8273564cfe24e0312de29c8690022a943caacb5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BXRMZ2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112070c6a1013626d2184ce6843bef2446f8b1b9c6bc0a4c7c81feef8e4f3802. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BXRMZ2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8331379829bb83bd0b8087de0ce172adfbaf7f7f663fb08d35094bfba4219d30. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BXRMZ2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf7545a0c7fc001ae60d4121bdc649781f69329b9b2b7ebfcc52ac7ce119a1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BXRMZ2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11032393911b3a03e5204ecd86fc6e25b836a97c9411577dd0d2785d2f2326b5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BXRMZ2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b26839a640c705fada4d5519a8852b42e9ce9985accc4fe11ac0be3ddfc502. 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/US6QR2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5955b0604ab66942b2b5967844f7ba16ba371d70550d27eaa80ad9b1c5fe0347. 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/BRPUI1100609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2cf246d426700d8cd8e2ddb617746ba05b9ef29e8ef6fb7c17a626d83c2982. 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/BR78N2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c38ad8b2feb4e929335e6bb7786e690c0743eb60b67b99f51b810f98983692. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BR78N2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc71729e76c513b5cf4a958e4adf0cf801bf337cad3d84f6bfdffb1a467ba66f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMZ92366488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467138f78ce6601bce343d2c02c545d62b3b0ee6b5f4700658de8df88597d005. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRPUI2100393.
Zeca Apresenta: O Quintal Do Zeca Pagodinho (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a118317003388c59ead55dd6f8f899634c4d9ff1f120bbc66e09f1f6e2254e. 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/BRUM71601383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185adad1d85d449eaf3f350083edd395ad9ccb40cb4d70489851522d1cee9e99. 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/BRNIK9900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db60d2344cf12b25576c828c6b4f2c1a82aa550f538cb2ac0b54597a52b4549. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BR78N2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b15554aedeaad240928e60c0eb3c1af1f7d1724ab09eb6cca8b27b0239af238. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BR78N2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8640df8bd8473e994b091b7ea6680ca5763bd374664ef8bb34209e38203a10. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRPUI1500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c73f726ad41facc7bcf549fba47403d3c52cb705e3b98d622223bf0741e9ff. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/BXDMJ1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab5f7a177786e459614332a8cf7b5fb39b5ad8f461169eb0fd40bf61da04326. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRDEP1500478.