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 0x179f345ee9b74543bca21d1dbb45ba93f131c333c415c8717bde4183ac83123b. 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/56ca09d4-d113-44cd-8ee7-a951d988dc09.json and https://artists.proofprofile.net/proofs/artist/56ca09d4-d113-44cd-8ee7-a951d988dc09.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 0x1da3dce11a25141b79f6c455e996c67ba7bab99f6f993b1681e0a7e1c08f8479. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ARA230600800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7f8ce7dcd0d179b1c47829c020793745a378e14a3d7dde0aad87f686d227a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARA230600801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543034f64b685a80c99a42931985260c3a7e420ca625092addbfcca631081696. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ARA230600802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03e1a7f38742df68cc1051c212521e0a9412e3bb37c9f976914c60745e2b381. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARA230600803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e044856495026c82005cafe048c05bec59ddee800f15628d3e1b227023b7ef. 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/ARA230600804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef31defcf971b6d1f8533f7e1f88ca54efeefbee9008e431ca0d901ff5b9d410. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ARA230600807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72584ecbc2aefbf5b752ab4fe1cbfa9b9f04aa5cb4b3d0848e582c48dda907a4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:06:21Z), 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/ARA230600808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26c713a41293be5987d51a9ab335e57267ef37e1807b0f4706d9fdfd850feba. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:31Z), 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/ARA230600810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625406e4dd5d95d5ed75a6eef8af7c13f24806b76fb34ee80965123af4d0d7aa. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARA230600811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f13003ea32dcc9c5e7bdfeb7dd6f7740fcb008912b98a27087eb956e03efdcd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:08Z), 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/ARA230600822.
Pa' Cargarse de Risa / El Humor del Siglo... Pasao
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a5878275f25488bc44d201df40da17fded67819449d8c30eb2e17d9a53628. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T04:59:41Z), 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/ARA230600490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689bd36ce31c769f73f3d5dfbff17a1760031eb1d3440510f81c51e25d3ffe30. 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/ARA230600492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aad9b9ca615f154b889d6056161ecfacdc665236d1691f2a515437b0451b3f. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/ARA230600493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536f6cb9daf83d55d3ee7d68a711fd7ebb8e5e4bfc866bd1c0860b61fbed7397. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:54:01Z), 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/ARA230600494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0412d616b21e110fa3e37de4e0f92b1a7c37c1bd5635c434ce6f0d7d5618e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARA230600497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd121b83b84f8e324580c14841543063858b8361d281e6e36ef55bf131ea8b27e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARA230600498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c1f287021f07e18349bc0c30cc2323cdc59d7caa65071f97bf50a592c036e0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARA230600827.
Las Desventuras del Gaucho Bataraz y Su Perro Juan Moreira (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305edab20867b98802c2638001f1195c2a25585139bc389eca943029744aa8aa. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:39:41Z), 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/ARA231200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6adff1621f82a18fa9290f555638400ee5696b4d006657156ef4187735b14d9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARA231200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce796963adf1a4daf055abbf5b39de6108fc2020aabeb8b6035bd0d6b0631d. 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/ARA231200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4822e9010c463d58f740effbf447eea21307fb0956fc2ada4578279995589890. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ARA231200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe164bac899dfe1688a64937f0b6754594b67463af108573ae3363ab3c08e5958. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/ARA231200007.