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 0xc660a7a6e032beb35ea27df8ec9d3c404d8c2e752e5e45d742efa303cb9337b1. 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/8d38012a-6a1c-484a-8a73-335d949f117e.json and https://artists.proofprofile.net/proofs/artist/8d38012a-6a1c-484a-8a73-335d949f117e.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 0x5c830a4ac602c86dfbbc8b508eea2dd05058a035004c4a4f10fe496e0f648fca. 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/ART0G1804169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18d5db9789b99fdd587c6ff1c25cb0b82b5f0e71f4119c7083eaba3750c674c. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:31:22Z), 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/ART0G1804601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586a254083dee8bfccd8929a4a31e2a3c292922f882086019dec569d9e6b8c00. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/ART0G1804602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f59bcc96e50d23ab6ea6abefa44d3859c1381c07508a7b3de4cb6263c4bafdb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ART0G1804603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029c2feb56fefb4f5581eef901c73dbc1be8874082f3c857cff6c5e83ede7924. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:07:34Z), 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/ART0G1804605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb08b3fcf9d420fd3711b877954e6aedd2183baf24a0e68a0a0f772583aac26. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ART0G1804606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6378140587d440481ea61be49f1c9ce2da49241571e4265e9d9a2f3eeb53957f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:50Z), 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/ART0G1804608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168af63c3e8b32393b2a599606f49837f30dadf9a0cf99bd07ba982b30115f24. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ARIXB2102288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168af63c3e8b32393b2a599606f49837f30dadf9a0cf99bd07ba982b30115f24. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ARIXB2102288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2447f027478fc9502b470236c5aec78581ed264c445a50d1393978fee518c0. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/ARIXB2104342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b0fc1eaf7dcf163e1bb5cb74dfbccb158d2d8be7f3512a1beeefcd5676bee4. 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/ARIXB2301417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3704cb966762502a42cf8e41450d8572ab6eeaaedb9b4ee26c9e98fe387d6cb7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ARIXB2305472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3704cb966762502a42cf8e41450d8572ab6eeaaedb9b4ee26c9e98fe387d6cb7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARIXB2305472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69faa4f9101624281dd2fefe3f0d16fa930fd98ea9af0d5600879326d955865. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ARIXB2312649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69faa4f9101624281dd2fefe3f0d16fa930fd98ea9af0d5600879326d955865. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ARIXB2312649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef5cc675710f2badb68e89ac988503044dd0361fa05f1702496084dd059f6ed. 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/ARIXB2401156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef5cc675710f2badb68e89ac988503044dd0361fa05f1702496084dd059f6ed. 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/ARIXB2401156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b733f0577e43cbba860d0a8e9a72bf0e832a996556ba00a454e4edf2e9da5ed. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:09:47Z), 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/ARIXB2401158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b733f0577e43cbba860d0a8e9a72bf0e832a996556ba00a454e4edf2e9da5ed. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ARIXB2401158.
Llamala/Falsas Mentiras/Déjame - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76216596f053077c1e356b4b47b6bb3cb9968409b400e43926e4dd16585bfc9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARIXB2500655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e1c8a40ad1f2c64f88c6a009a10446c59982d512cef0891efa6605a63003d8. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARIXB2501097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e4f2b87046ae89fe30a7beec4a838229b175a311db39e09a3acca3354a40b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ARIXB2501098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c593c5d31d0c8854c342d06a10020899b11b4c25d3a908d2b9fe0324cfd519. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARIXB2501099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c4ca4d19b148c473ce1984f2b9fc06c1f61e48421cd45346346c20c23de7c2. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ARIXB2501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00b912bf973a211f55141e103d9c0f27f58e016f97fa5440f7dbbd70dc61830. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARIXB2501101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8270b1595d1156c3a354de06a19e552549b7bc0125490820ee187b4421822989. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:46:32Z), 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/ARIXB2501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4bca4aebc8fad7637e1b07d7c4f9249fdaedca1e6a68386a03dabca13fac35. 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/ARIXB2501477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c791bd39b3e1c42aeb0fdfce24fe54dfd897ee1794d97bd1bad950a80164fe. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ARIXB2501480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b5163c111bbf87791af523fcd80513f2c6a71eb1fae71e46960431880f29f0. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:56:55Z), 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/ARIXB2501481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0e96876c953dc877e3ce2d1d3738f55308e9d715b902b5dc474118e901905c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ARIXB2501483.
Esa te dejó / Díganle / Quítame ese hombre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7e1f8f0ad91e2c835488105213ff4dec965fcd7ff642c1def910260d0c90e0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARC6D2100091.