Los Huasos Quincheros (also known as Los Quincheros) are a popular Chilean folk musical group, first formed in 1937. It currently consists of the musicians Antonio Antoncich, Jose Vicente Leon and Raf
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 0x3dbcaa39ed07922e705743907213d2d49fd000122f6a8014de7edea55ecb0267. 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/2cf8ddaf-0f5a-40c7-a7e6-c044131025ac.json and https://artists.proofprofile.net/proofs/artist/2cf8ddaf-0f5a-40c7-a7e6-c044131025ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage World No. 118 - LP: Chile Canta, Tonadas
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 0xb4ded427131eb3bfb74418b91b0fa4ed6608575ad71beb4c0345d14e2d95394b. 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/ES71G1643628.
Vintage World No. 147 - LP: Recuerdo De Chile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a1f4ec71052eb43c5b2c44b6ae692c0c4e4a4174df55086de63987914620ef. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CLUM71900872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ae4d3d19e29d8afa6f1caf1fef0e42ad281bd3e74cc5bb656ee466cc208c48. 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/CLUM71900876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccd890e5ba770f7ad6a24cdd24cb00bd4b0c8b192a9e0368465e4f7e7b23c6b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CLUM71900878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4635590fc4caea30e219e15c4ca3ffa7fd7e725ab153715cc219164fff3d1001. 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/CLUM71900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa142fbe3d37750fc4d036b07a69893cf5e10aabb980f1b57cac509914713d7cc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:53:42Z), 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/CLUM71900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac1dd56088fbd74a6c1355e9d59e6cf19013d066f61510897bdc91120c18081. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CLA220300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7ae4a945832976d9dd0b7e0146c830d037510107af734ae631823552b4fc1c. 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/CLA220300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7faba9824845da7f318fa5f87a75c4a38c4bba965480a3b6092ed173fafb4d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CLA220300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaba59741783c22f5d6b211c051976cdea3072fb449aa938cf06c35e88362e0. 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/CLBB26000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57738b14dfadec42ae247602cc3fd648f133f0c5421258c5d522e85386179cb9. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:19:20Z), 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/CLBB26000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb21af09b960892c79b251a092aded8fc2b771f016d1f834267d90a37e76884e. 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/CLBB26000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa172cc9c6ab5802be8995d6100deb632dc30ab83f45606f342aa20679a153db6. 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/CLBB26000026.
Grandes de la Canción Chilena - Antología
80 Años Quincheros - Mantelito Blanco (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d71f9a09187d27303a760b0260c3965fec6935a5cbd396b3b690c6e7f914768. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CLUM71700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceca49461f2823f5cf90f559faa68e14367af532b9b9e5624cc29bd86f577666. 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/CLUM71901239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09029042c20c5f4241162461222d52118f9b3aee98bec59848c1a95a4683397d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:58:04Z), 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/CLUM71700022.
80 Años Quincheros - Abran Quincha, Abran Cancha (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4185719cc75e8bb31a0232f3c3adf4d13ebec0c6b61ff0074920e822294043f. 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/CLUM71901308.
80 Años Quincheros - El Corralero (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa3931cd05a88a06b0f823409123e02458390505fe546745a0d3c542ab9368f. 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/CLUM71901265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeafb4c9bf9792bad4c58059a1a4b65dbf0d3e3b174d2b53fe181e46dd62176. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:41Z), 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/CLUM71901268.
80 Años Quincheros - Qué Bonita Va (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4026bda4c49fc882868f83daa021c71c075ffe5a0b9097f4c9b9d571e1f92a3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CLUM71901283.
80 Años Quincheros - Nosotros, Boleros Para Enamorar (Remastered)
80 Años Quincheros - Virgen Del Carmen Bella (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327934b72b0153e827950ef317aec47e470f58ab0131c987b8ee738b5710cdb1. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CLUM71901369.
80 Años Quincheros - Hasta Que Te Conocí (Remastered)
80 Años Quincheros - Rosa Colorada (Remastered)
80 Años Quincheros - A Manuel Rodríguez Y Canciones De La Tradición (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a9fd016cd6309a3a3712d6d630ab296c93fbc10b7e86ecb9be030bfc5b8263. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CLUM71901349.
80 Años Quincheros - Manta De Tres Colores
Cantos del Patrimonio Religioso Nacional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f356c4892759a4ad05e01d5f4e9c7af9eeaecc9c92054446772ffa3f1a0d05. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/CLDG21401343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab36495e184c345549857b35d406466f46f26330106f9dfff820457808ad3c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CLDG21401344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4133d651891051e7e7e2ef73647c3d8d67aceae4d140fb23f92540cf6a24f47b. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/CLDG21401345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd0eb1a2b560b11aef46ad8e0bdf17e2871747aec74e6cd7e108bd942da0ef1. 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/CLDG21401346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0dbd839dc62bcdd8820205d9f07f06a77cacbb817d97ee0a6e690256851b9c. 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/CLDG21401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f11b4ca5a1358303e5ee6a12daeeed7e21263e7267e2d4449c6d056e3f8b7c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CLDG21401356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dec179f3a405527e832626615eaa3da7b5eeaec59ad3469492c7ad1722f3b3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BGA261835102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b63ab2927ada3f758b6b3a837d8e3c75b4e9f493bab48fb51b95b02916e83ac. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BGA261835103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3e747b618e6b1ae7f8d454fd197de3099ba90922c3df51f5679526df8fa03a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BGA261835104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f59fdbc2854605e51c6dbca4da50440ce0252e9074ec574586b33ef0505c2f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BGA261835106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c06f8f67f544909bb515404c846d2e4c1e962d66427a34e1e737501201af863. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BGA261835125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b9c2e06bf1fc840bc38aafd90e86d12ff0472b42aebc0e4be1da42baaec7ad. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BGA261835126.
Interpretan Todos Sus Clásicos (Remastered)
Fiesta Mix Grandes Tonadas: Tejiendo Redes / Huaso por Donde Me Miren / Con el Viento de Septiembre
Canciones Tradicionales de Don Nicanor Molinare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775a7c22e5616764af96525f443c21a2dae99961c729b6cf2659b56081f1dc2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ91607614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0974aee2403ec5c16546fc4ba1358bb04d400b1cb45fdf09f5b36794669c571e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMBZ91607624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32ad256b6cb5a736e2bdac4b2909e341183bc907484c54b0a51e9b9442555f3. 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/CLBB25800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a85546b5fa0a9b6039abfa58a4414da9b6350f33cf7d3065cd7a595392f80a7. 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/CLBB25900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50fa4c86cc42ae138dd14fb1337d3eaedd0072016a46387da3623752264b12c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CLBB26400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f373bfd6868a0ecd77548b682e259b6c4d7604e84edf32c262a369f4189c94. 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/CLBB26500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc28bbff2f288b8c7a575931384d1cee1cdf7349ac0697a57f42a80cae88c21. 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/CLBB25900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cf0631c28a7436cc9d166fba8c7f46073dbb4468f741bebf6203ecdb8705ab. 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/CLBB25800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459978d75a704a64d3f656851378fa3748397787d84631c643aa730306ae9dc1. 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/CLBB26000055.
Canción De La Caballería - 2002 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e585306975c0d9513a47cdecf5a1e6b00166b9bece50a2f69e17db20460993. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CLBB20200144.
Arriando Un Piño - 2008 Digital Remaster;
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e485ee4599288500dae1878eeea2c39648d292894cf8ea049c72459a906e73. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:56Z), 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/CLBB25900086.
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 0x610d875f3ba1cc625b293ca8f41529bac5a6c265e396e9ace842cc3997225fbd. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/CLBB25800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a3a24538c2412a75a395988a9f8b35af4b62277af36aed1415ba1cc1cc0ca3. 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/QZNJX2432046.