Sandoval is a habitational surname of Spanish origin. It primarily originates from Sandoval de la Reina, Spain, earlier called Sannoval, which is a blend word of Latin saltus (meaning 'grove' or 'wood
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 0x667cb9fa32577679b8fe9d3913ce12aa5e6a6b081fd046bf6ecfc84fb08a60ba. 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/d69f6ffa-8326-4804-a87d-c7856d1a1bb1.json and https://artists.proofprofile.net/proofs/artist/d69f6ffa-8326-4804-a87d-c7856d1a1bb1.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 0x03fb187248b79b50eedd65ea3a72c22b89d7f8ab461d93241084861c05d01d5a. 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/MXF150900548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7301c4d69bb8726be3716131842df9d1992b9bb51ed4bcee519b9157e326216e. 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/MXF150900555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae3514cfbf16c9a92860b393cd53e02982b4b3fd3c08e16f84b27e514394d7f. 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/MXF150900556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176b9facd12759fb439d1eef5becee439900915cdc4a12dbeb0bc93d4b73b721. 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/MXF150900557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf2fc0419eba631d85db18c745d435c1e92cedde9e977c43db2a3a36dece643. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXF150900558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b56e5f278efaec113bcf42af9bc101cfdeeeba1dd9af257bb3825bf7afb243. 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/MXF150900559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd132de3d16b51e0caf777dbb50433c20b2512eb1c39650bbe5a7a80cf3319cbb. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/MXF150900547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240052cb3b0ed035d4e87cbe982b4639807dcad70433defdc0e82eb0eaf89ea8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USWL10300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9de08e5cb14236bb4b495536f7357f8921017dadaa91e9ee9d95118a5ec2ff. 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/MXF151000535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11698e1dd1d83634f4f25a0a838c36b76dba96026eb34791ba448011bf19f7c. 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/MXF151000536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dd8b7b67ef5861397113d7b2d2f638c2c10c4f0c766960a0fc0e28a2f132a1. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/MXF151000539.
Loco extraño (a dueto con Bryan Amadeus) - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a4aa69d43e2508a823ee36c48c4daa7b7253a454a15fa19bd7bcc30f6a9271. 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/MXF151000543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70ec970249d21d32b33827dfcf2b0b4fdb1209b6e20d2e07d96a01f87a68bc5. 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/MXF151000544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5d12e99734461cbe1714723c877a10385c110bc521c194215e4448749f3e9c. 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/MXF151000553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bd30ab6e0fc0afe3f2782811db1fe26a53c78b3d46a5947b7b40cf0a1c31c6. 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/MXF151200488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5274f0ef0b941c0b30c06507fb95e30e1f72adfac5290fca0db03feb62e2b56. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/MXF151200493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5274f0ef0b941c0b30c06507fb95e30e1f72adfac5290fca0db03feb62e2b56. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/MXF151200493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4981282376e14d0b9d2b6f51e1d4a21791b65af4f5d9badbcc373155f1734bb7. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/MXF151200491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b2e562862bcf9b22286d647642494ee086232f1603c0ac5a8e20c922c78f30. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF151200486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad7dbb7a929dcceadc84d41b62389cdaedf39a680e5a70ccd8fdb92cc58f8c2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/MXF151300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283876cfb4496c0e42898065657d0dfae0cd2789acfd272d4a22cf776a71ac0c. 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/MXF151700016.
¿Cómo Te Quiero? (feat. Martina La Peligrosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe220363ec543ddb8d5d5be03d8e2aea31b1f008440907606532b0ba176739ea. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF151700616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d63739630d972ab7ecb0ef2019339ac8f402f460de88d781ed960257c00007e. 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/MXF151800424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237da3c2b240dfd5036cdd8d4b61d2f7a7c2622cbbb82221f48ea30e2e09e993. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/MXF151800418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283876cfb4496c0e42898065657d0dfae0cd2789acfd272d4a22cf776a71ac0c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/MXF151700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4c46ce23e0ff8cfc267ce60eaedbef62d18093f62fac226d62d907f1ff8d6a. 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/MXF151800423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8bf7e5aa234220cd0914c450eab54f8f2a0c0f0be366ded0844a62b82dda05. 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/QZHZ51934109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f9e45f9a35a25c5ddbb884a4e7e93211a52bfa76f696c4939bf83ef83318dd. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/US7VG2055859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1403f154eca91936ed45331bf68b172919122340599d59eed3690f6bb39c97d0. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZGLM2097818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1403f154eca91936ed45331bf68b172919122340599d59eed3690f6bb39c97d0. 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/QZGLM2097818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ceba51438a391bbc1988cb439fbc1ee42f4ae32c6967711c63d1bc7fe0e1e9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHZ52046489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ed27a64bba0f9507789c94bd234e65651be6a273e98972d2d33be4dbe4b2c6. 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/QZMZ92008661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c2c338c72e2197eaf58d0b92af9d6abf4edce94473e304085d34429eddf1b0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZNJV2017784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba1b217d15da0f06dbcc07a399155ae021b2d17082fd910438d926d44aead35. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZNJX2023833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe082db308306595f83f959bad11a47167417059e22f313344c46be7e08f1c81e. 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/ZZOPM2106060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c70cbcc3cad2e44f1e03e376d694e650ccf053181acdc8f686c59380d769fd. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ZZOPM2106875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e92ade23141c62e2646b57eb86d235bea7cea3dd30d47124525ed4e4033acf. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ZZOPM2110419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d45e1fe7acef05e3d10535fa7690bcc912a5c95a71f1ec789a8471befdba68. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ZZOPM2116644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac88861f178144c25607323c57efca3cb868bad80513a1d3c08c2f88619f7be. 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/QZX8H2370354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a77f5614826977c15941ed65787070e5a7a80ff38b2401e10e97841f9036192. 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/QZES92146613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66357911c31c982a17ced0b6b938320abe6b5badb2ea8c5cf02884715d2e88e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/MXF150900560.