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 0x00ecced092fa40b0c5daff70fb37f0bd41b59aa3f19549123ae8a20c73156380. 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/04f6bd5f-003e-4175-89d2-fe36257bc96f.json and https://artists.proofprofile.net/proofs/artist/04f6bd5f-003e-4175-89d2-fe36257bc96f.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 0xb1e0c2fceadd07f03a8fa77403120a08f7c159d0ff261b5b5df8e786a4cd5be7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ARC571501291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbce6fb8980524501162aaff4c5e84a3bf35f190b17a556a6e3ab36b46ff713. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ARC571501292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8e6d0184255b7176a8d52cc26db43f670145badf77b369908277c7561e93fe. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ARC571501294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc15e2c1d16a2855ef6f1d799a4563eb34ad4bd42a427ad0534ddd5dd25a908. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ARC571501297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1008ae39aa4b01d763c0861f81cdba7cf9167460507770cbf25d1a8d53a3991. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARC571501298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9070c0db9c5c3be7b32a0843077adb2deb0cd37ee993993f4f6b97140a530631. 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/ARC571501300.
La Gruesa Piel de los Destinos - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ff653d01b64759589c67632cff6e34c819bddddd113fcee75fd03de5003b7a. 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/ARC571501307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6109b932b8f59031d3f8cbfd14ee62a579d2bc06447a685666d742434c487b1e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/USHM81955505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820754f3b73f2f8b9924c95e23569bcb417e3f07fa4d770932b9046e643c5d71. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM81955506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800e12f7480415057bdaa968e71a75697e422d48719d7b0d7b3d25400b6d2036. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USHM81955508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f75c95a99a247e16acf6d67b86e65281c6bb16aa57dde0595ca3f63381b697. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM81955509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e23b24e03b9b10a53725955dfaba78e48ed576a6a112932b9d53c61791edd6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USHM81955510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ef2de5663754d06f0050baaac530d6972bda0be2ba9c47fa16f1f621f8d8e4. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/USHM81955511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ec436f180243a6dd6b78cfbc438d9c5071b5710a8d3797635032f74a8feba6. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USHM81955512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb856b72001072d989fbbfdb257c54f9e41e614a52e21c379bf0157eec71ba70a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM81955515.
Kuervos del Sur, 10 Años (En Vivo Teatro Teletón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b130b228a0d12c2afecad442d85a3be8582d8b8cdc3473cbd277a26f6a9f0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/ES71G1880894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc1f933844c515d8cbffb9e08f962ee62bd11dba5a490482d6e76b6161815b9. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM91988436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab187fe338076994aeb48411c78edf713ced1fc788700f53de413c467aa258c5. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/USHM91988438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284bf5e3c33b192384e7dd20ca10af1bf784dd58c1c0e0f3426bef79e1ff65c8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USHM91988440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b4827253ef38fa2cd6d0ecf57da7d9c2a984f008fad9440be7a9f85bd9361b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USHM91988441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb8733c033a6856266b1a16a5520322be116d98cd5f505cafc1831b321fc939. 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/USHM91988443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e87b1b11d9cb4cf3fed8fde4ea689f9a00548250a3e905a359377f2c3b1f43c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USHM91988439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22d2dfe0f83413519e666bef1530437b20bae43297ebf14ec59740ead4a62a4. 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/USHM91988442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7906fb55f78f1eaeb937882a5cf5d99617d8705d943cd190096d47e7e8b602c0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USHM91988444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525872dc96081ab7f45cffa259b5938e910f147f1ae6cb2daf24e79c9e145609. 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/USHM91988445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937b5e215ffe2b0f71a2d2797fa7917b8341f0996c869f9fef610ab4b0f93ac0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM91988446.
Teatro Caupolicán (En Vivo en Teatro Caupolicán)
Canto a lo Brujo (En Vivo Desde Estudio Fuga)
Canto a Lo Brujo (En Vivo Desde Estudio Fuga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc511a081d877360410ebb480ddb5f17c211f2ea224942f46006bc17ebb1ff264. 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/USL4R2244069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda82639e1de5d51fb3cf6ed6d488c534d9079645eba8ea25953ed60e723829da. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ES71G2331825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57c16eaaaed213bd4609ffe51c417eaa108032c27525b246a35d3988c02d38. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/ES71G2333973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c41389fcc9f564ebb06ca2ea53e0abdf97fcebfd9bef2c39b100a5ebd38ddb. 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/ES71G2333977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b7cab9fcccc0026dca0f8dfa738e3d5683063db23282c9c40187d486dc147a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ES71G2333979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef6dac519534ba376bd649824a0449a6082c44dd0ceec9e91afa4840cd6a234. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES71G2333975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4231dab2bdf0d2533fd12d27ea737046c3e3a10f351a34b824057bf6bb1a18. 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/ES71G2415103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a90b477ad21fd2e6681e79e36205d7bd7fdc02ccc04d16c13459729d70ceca0. 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/ES71G2416878.