Blanco (white or blank in Spanish) or Los Blancos may refer to: People Blanco (surname) Fictional characters Blanco, a hobbit in J. R. R. Tolkien's Middle-earth Blanco Webb, character in the BBC sitc
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 0xa99e7de221b2d90f4efd354ea45694398038ee3a3b1721d59f9965f21efff885. 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/fbc84af2-465a-4341-a4e8-7596e92375e0.json and https://artists.proofprofile.net/proofs/artist/fbc84af2-465a-4341-a4e8-7596e92375e0.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 0x5c2d97c76a753825f2ac65c2efffea8487bbcd07bf98a38661d7bb98c2bbd065. 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/USUYG1014764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662f842976baa15410c50a65bf209f3ab00bee165a2708e6348b367defe48e74. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USUYG1014768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8e01bb481d4febfddf002bf521534eb520eac25fa48353c9656ab94cfca38f. 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/USUYG1014772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291b842024bc9f9a00f66d27d21eb6688c1a8e83143f21715533ae91c7ee2cb3. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USUYG1014773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e3cca658f9e542de395fda1d50520604ad240e338b95a113711cf378693e07. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USUYG1042671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20b767c0ba5dac2ede34dbf652a9c843a47978662a50b2dfad481f15c36abb. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/USUYG1042672.
Reganomics (feat. Mistah F.A.B., Trae the Truth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea7ca48832cf45169dfc19bf0d71b4f18dee2f9caa6f4cbd47bc79e1ac50051. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USUYG1042675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc847505211943a596b9033ddb125189864dcc12a6ec379b3fad0df0c18a116. 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/USUYG1042677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b2a7992339b390353177a709123297fa1cff8afd11f64ab880a26209fbf190. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1042678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9299c678413afbbe994246823669ca0949e8480dc9e8774e22a84905ec937b. 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/USUYG1042679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce23d87d899d9df50197ec84733a8de4d81048735aaa7c6aa99f2e50c4c7364. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USUYG1042680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856c14a39571288e67ea47225ecbb67483c1cb4fcb9cfc52024ede4df754f68b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1046323.
The Butcher and His Customers (feat. The Jacka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20936114415d3da2286bdcea00f3b1ba12d3ad7d651bfd970c122de9ae51d58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1046324.
Grief and His Due (feat. The Jacka, Boo Banga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e7ab8c1156fb04b9e5ab3dc0ce1af638303c58e2635621fe4b6ccc576d887. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USUYG1046325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9234d697d00d0bce95bb660b9582b4c8294bb29ab62f8c154d4db515702493. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1046326.
Jupiter and the Monkey (feat. Lee Majors, Jésus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b37f500442256cf804d3ac90bb6504e3584fd44b531bdcb18b1ba57421c72af. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USUYG1046327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cda8fd979b8891d0acfd8948bad5841bdb63a3935f81427474c237ed24b76f. 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/USUYG1046328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93554a18789f6bc6a4368ef1e63686bd3db4e93325b08d4e31dddc520a846878. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1080020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a10fcc42ff3edc5c1a26bef93673e82a345ca358f518c70dbbbf7a44c451acc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USUYG1080023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c58f2ce6fa758d6a3660baf6765f92c433f0e12705821323ccd6e4236111f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1080024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868c9604b79d2f32793d2bd98c30362452ac16dec9c942d7f1a51d2ff913705f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1080028.
Drivin' Like I'm Loco (South Central Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4bcc6e637d86163eca283f64b6a3f18d0a8dd6c1e9cc1f8efcfb07855d2cc9. 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/USUYG1080029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb85423aef83bd0fbce73fd8b80e8146ec210f2c9f6f2b1542da4d9b0b67468b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1080030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148b94c377b087dc480a9b10c049f7ad343696977bfc647e9d066bd3ffdf1ba2. 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/TCACZ1761056.
Underground Reggaeton "The Best Of Radio Version", Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ed611e2957a395b79c7fa1f76146033fd63a583c8538806b846bd8b0cbc95. 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/USDHM1106628.
Playero Greatest Hits Street Mix, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72017ad3507979d68ff6791213ca40a6194026f015ef47c08b3cd5f9ee3520fa. 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/USDHM1102779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc93c8dbed8b2ca14d0b9739f901a8f6f6667129c0b4f4dcdc6292978b036d. 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/USDHM1102760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b75904f2fd48881f46131bc31d5df52de19e281c6fd6eaed05e1d544e60c89. 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/USDHM1102780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe8ab95c80b5b1cd12c0bd0d0ad77d567b90f8d853801a3de6e859ca2a6d4e6. 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/USDHM1102761.
Playero 41: Past Present & Future, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf96dd474996415fcef7b96262997d03bf11415541ae27c6654298d86fdb34c. 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/USDHM1004436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b62c6d40c00dadaa18944a691b87c386192b4e898f85fafb77e0199494aa13e. 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/USDHM1106633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65769c531eaffbf0adca597ba334dbbd258e5462ad81951bb7bfe50f0f401732. 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/USDHM1004461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75039ef77eec88d00405cad7e06ae4ce44789a1520719b59f8f61a4ec8858e4. 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/QM4TW1871345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93d3eaa1abcb8d9df5415dac850b0738f23824e0200f6149481964bcc58aa99. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USDHM1004435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce2815afbcdb6fecca8dc28be87bc173b68f3eb8d6ec6a4d3a607c7b985d62. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USDHM1206821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7fbddcc70a31c1954bcb79aa873f21c6b2162023d6df339b1c503c58b7dc47. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USDHM1106646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa488bd485eeb4b092e9e566f02cd454dc4faa914b109c81977126cda283b0f97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM4TW1871347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccd21f720542f1ee70f4676c7682a2fbecbbfd80782629335fecad3620cdaf3. 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/GBKPL2156290.