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 0x3fe4a3eb3c44b32e43fdf81228c1be6872b0d96424ce12caa0a2d24d7a156f05. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2b6ce98-cac6-422b-8344-531e420f7427.json and https://artists.proofprofile.net/proofs/artist/d2b6ce98-cac6-422b-8344-531e420f7427.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 0x617da9e4b811747087ae8ef239c2c50ff236ca648308e48c8cccafec794294c8. 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/ESA011786659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e0708b82d990a46172d38e0f7b9e008bcbf9ab2f58784bbfee2dc5391b4a73. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:15Z), 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/ESA011786663.
Hoy Acá en el Baile (Cara de Gitana) - Versión El Pepo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16f94379cb05a2ad5e5ea8fd066c9cfef2fa7020c87b1471939418165a8e457. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QMFMF1588308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd285f3d100690fb570a4f9e1d2aedc2cd7e887c44bbe3184a01b4c58e30237. 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/US6R21517489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0c38071efa8bbad8e6fd8b3fb421fc3492727ab90fc33e61bad45b5d2d8873. 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/US6R21517490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8390d4972db97ffea4d714c8f4e1d0f68ba91fc94eedbdc8fdc99a98f4448e0d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US6R21517492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5192608832265a1e9c4c420c48198063a832b495e3e8557bde42ec0d0f42307. 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/US6R21517495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1d06ccde2ff76e339b019dee870692331af7c365694e77d60ca55d3f2fffdd. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QMBZ91731103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cd75886ec9cea0418b49fe0a519f8a8354e2f8fd5345a136d14da05ab54fed. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:19Z), 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/QMBZ91731106.
Hoy Acá en el Baile (Cara de Gitana) [Mundial]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3c11342fdd1c8800ad5834662798aff436c30d4772731aa0ce323e427e395d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM4TX1885729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0e6f2f8b46443f4477f9a567180a006889092268ddee1002e7c950cc0077ca. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM4TX1885737.
Hacela de Noche / Nacido para Geder (En Vivo en Tropitango)
Baldosa Floja (Versión El Pepo Pa' los Murgueros)
Seguro Que Allá en el Cielo Siguen Gediendo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca1e9b181269cdd10262c6895d8b98ea617f36eba3b51aa08758368df67559. 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/USANG2106230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c99f3ad67e66d8a410413379cb11db3909911cfe7a7222fa78073115018bcfd. 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/ESA011871435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e70520429381dbdc340b6a75a14cbe618809729ae9c005b67de5841d50e2a1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM4TX2046163.
Negro y Borracho (Acústico En Vivo Sanata Peposa con La Banda Sin Miedo)
Seguro Que Allá en el Cielo Siguen Gediendo / No Se Escucha Esa Nariz (Acústico En Vivo Sanata Peposa con La Banda Sin Miedo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6622f1a52c9cf2838457781812b3f48f263695dfd43ff6c62ca103fd982df5b2. 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/US3DF2182558.
Nunca Es Suficiente / Hoy Acá en el Baile / Yo Te Voy a Hacer Feliz (Fiestas Patrias 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fc3f67218812cadf13101ab28395083b438b598ffae0241cc7b8732e4a548b. 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/QM3DF2163850.
Caerse Está Permitido, Levantarse Es Obligatorio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8863e2ee82d89ccbe95950e9e7b12632ea33ee485e6159a848b8b8cd06b6e536. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARQIH2291107.
Seguro Que Allá En El Cielo Siguen Gediendo (Remix)
Vamo' a ir a Qatar... Descontrolados (Cara de Gitana) [Versión Mundial 2022]
Vamo' a ir a Qatar... Descontrolados (Cara de Gitana) - Versión Mundial 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569418dc3dec8877511d012a4e494f852f154dbf449ad0c8b0afe5a58624db5. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ARQIH2291534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633842c2f5b598aabfc92b8c9db3036a6a5abadab1c87e1f85dc9217aff8591. 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/ARQIH2291682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca8213bb222d0415bdf620dd4bc2646e2654c8b2f0e0b0b9341273aee1d07d0. 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/ARQIH2291792.
Descontrolado (Así Fue) [Versión El Pepo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfab3f46fb8f62c6dcdd23c687257560d9bb923804e45a38b21fee64090b4625. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/CA5KR2364652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a4ac24eb7905bd8f05cbf7ee226b1e9ab0c895531a5159f8176df42c8273e2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:25:12Z), 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/AR5UH2300945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d63d808c14814862874ae38404d793cea52c65373a0674321f2ebb71a59c907. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:10:26Z), 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/ARQIH2400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae75f6ab6101b0bc7fc3af515fb07c0df96f6843f8c79a29d80eb25a9dc242. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CA5KR2481572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1156a07b36bb6473eb4ad8ff2f4fe2856af1318ab02e0304c3f07f86511b9e8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CA5KR2481573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f377e724f7a7c150cd5e75663dd8c9d28795a838369216d59fc0cd6b117f32. 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/CA5KR2481574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31dbcd5d3131b94edde4d2f5298fa662aae625d423763d628a9f1227a120c30. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CA5KR2481577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0231fe53fc83e02d7a1ee545fb13cbae4d20247c1f709da8b047359b5f7393f7. 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/CA5KR2481580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d8ad38cf6d2a9ff36e4480383f1ff0bfceb479b95474f1a69734fff5752d9b. 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/CA5KR2481585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae3722c3b67efd5617c62a5625c182e3c2719afca13c91bcf7458830eb3cdc8. 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/MXA3V2400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe82fbc23bf525b8eeff8d4f501e4722ce05ad0f44a0a277ee0d4155bc48f4c0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/MXA3V2409973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc87654923c658ee154b8cce3ed4c3ac9fa9bc3d1a402b1c81fa5267e45e467e. 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/MXA3V2419218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084ec7946d7d74eedba8a8d524ac4e47c3d8f2616cee2b5fd04e15b1ffa8dea6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MXA3V2420261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bbe3e5efbe6063cc6a5ccec691e14e101c4eb3cedea4c02c9bc099c8aa6737. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/MXA3V2420262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef677c68ab01cc5cf0194f1f074df39d587818905224571c204a08df83eb9356. 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/MXA3V2420263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd305d9e27b2121042e02614716e6c934e2db0c044429b6e87ec1de0b748bce32. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/MXA3V2420264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae58ec0b4e34e8dcdbc140dcc6225b1824f9cc8abb01c255b27d423f590cc8c4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:15:32Z), 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/MXA3V2420265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2228e21a5ae694de235f49c48c317bec7b265e9c237cd1a9f68451190afa0a5. 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/QM7281886559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44cc024b0c222685bb75f2ad950b5a219caa3eb6da3b4cf7f6147dad5500cf. 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/CA5KR2319030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b6e81fc19cd7d5125851c6074d486a50cb840c893bd74de3a8b689fadfabea. 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/ARG991020191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a842fbdc91faabc0b7d46dfd0c00e78926fad3aa64ea4239285e4b7407d621. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/ARA822400527.
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