thumb|Amparo Ochoa María Amparo Ochoa Castaños, (29 September 1946 in Culiacán, Sinaloa – 8 February 1994) better known as Amparo Ochoa, was a Mexican singer-songwriter. She was one of several other M
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 0x426cf0a58e750e021aacc3ea4f9be038bec0aeb2466898cc65a5586ec7d00406. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2eb7c9c-19f8-4323-a038-bf8e6033fd07.json and https://artists.proofprofile.net/proofs/artist/e2eb7c9c-19f8-4323-a038-bf8e6033fd07.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 0x7a6651c515ceeda0de43c7d36f981bbc6df4e9ae6b4be8bbb6c654431ce150ed. 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/MXF600600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f04f862c6bbbc2452c4041cb0234272c80f5529443f2b8a15659725931b9ac4. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/MXF600600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26126e7522ed45cd168bb18fd6acf99efbcb2fa2cea1ce7ecf8211d423eb7f17. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:20:34Z), 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/MXF600600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f5cbd1f2c8a068fcf88de23da414ff115fa6df9482e39fe926ba425405ba00. 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/MXF600600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc512e4df7b86912c32e3553ed995ba470ad038e1ea1201fd8479a3b48e634e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:59Z), 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/MXF600600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc150050b276c5ae15bd888962bc5008370d220e30216b9ac4e64ecf102801911. 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/MXF600600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffb72cb61bcd14af769e0054b5a57a91c7c763ab7be9cd41626a559bb5cf116. 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/MXF600600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fe9465dbcefaef27e67226855ae707fbc06337e0a22faea5b9754065d3a403. 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/MXF600600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a2eb7798a5b9c7cd4dc5231025e9ba2623084c782624cff3d8e663436ba389. 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/MXF600600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a246c7ce0e06e25eceaa80f59fb27ec4279543965ab030a466258a91fbd2a5. 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/MXF600600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0075768050dc8b26a6927a60205ec1558f1cd8c0049f86d4f9e4b99f545faaf8. 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/MXF600600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb285e0cbe49e673d9365f79b2d7f744a8edc9a80ff4d00b0e5cf137c1a522931. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:17Z), 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/MXF600600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675a9c5e824ab477c0b92fbb771de49b5e0f686cd47fdfb50248864b8cbeffd8. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:36Z), 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/MXF600600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69a44a545cb7a0b5f9ae99e00175cc40a2f242ad8984ab190b30223a5047c54. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:36:29Z), 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/MXF600600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583652760aecf9e8f83c2aa5a9632c22b87e99f5ba6656bbedcd9429f962e989. 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/MXF600600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec341c574762eedda4ec97dc783331be0c71bf3f28ce025c8de6cdf0c469eb5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:22Z), 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/MXF600600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49219b1eb053d5413a9775cc1fc3d5fe8055b356fb96659fc0ef9883c481657. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T11:20:47Z), 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/MXF600600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b83d2a9a0aacf6be0e0d0833c64ba7d05b05826f28641d2399a2df65cd871e. 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/MXF600600294.
Amparo Ochoa con la Banda Tierra Blanca de Sinaloa (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57572fafd7544374ed2e292e0415b850ad65138e232aef787e29f06e70b9fdd. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/MX1091010284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe1e26ac67a2ce473fc29f5de0921408638018367221104c4393034c6ecc942. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/MX1091010289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd9ad22f0908873ff8888e5441711d91b992b3a7f0c195e7e9044d53e87449. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/MX1091010291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24bee6922c437781f2988e9698fb4d93fd6459536057947c447a01430296390. 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/MX1091010293.
Corridos Y Canciones De La Revolucion Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4d01c2facd2843d94e507ccc3f9f7164ead75f0c5d817dd1590388cf63ffc5. 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/USGH80710299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e502e3e2fa7dfeebcb980ec8b2164a0636acf7e74b9dd786686423c810a07d8. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USGH80710300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755b9b3b1c52b0f11652f72c9cdaa3b50d0ea38c321f8c0fd5f0db72e33e4c30. 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/USGH80710301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c950179ade1bf4de448d19d998924b9d7119786e7b7d6c10d3b881ebb87e49a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USGH80710302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546bb9b47bd76107a051551ae759034e11f57049fbf9283faecfd9d6a53f244b. 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/USGH80710627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0850f8678e50121fa289d57ba7dcf07fe41a58570a8f0d17f2c0e36c0d19f7e8. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:17:48Z), 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/USGH80710633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca98926d75f19766123c0419df72593c7d5820da6409df8a019065424f7d6b7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USGH80710636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0cb35cbc45d1ba7ce7ca2edc2d8e9a9f13ad358d116b430d10fdac7c7a1d7b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:31Z), 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/USGH80710029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910364a0f8bc4ed37cb330d63bd97bc9dc59e129b5d002f41b04925147bddca7. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/USGH80710771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1e3e5b83a73354c79a9b7aa6a2ae62951f5e76c6c53d73589f2d57c88369b1. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:55Z), 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/USGH80710778.
"Por Siempre" Lo Mejor de Amparo Ochoa (Remasterizada 2006)
Canción para Despertar a Un Negrito - Remasterizada 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94456007af21589f24ce5c657cc24a79355648c9203f1aa2160b30cec6010bb. 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/MXF600602797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dbbb1966acfa929feb7c25763c425f7c9e9c850cb652400dc314504504f78d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:15Z), 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/QMDA62123752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322ed01fd2e93bead88425d7f35ec595cfe34d755305321dd2c4144661b58dc1. 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/QMDA62123755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66c89be2016cb0591135000465d334b93dc1a40ef0ee3416845435ab3b9af77. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMDA62123756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5436299910d53dd61b5d0e03cd99ccb83a067fd09d92be1b049afe546c3d2223. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QMDA62123763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3b2834686646e77821a75f543642c9924689c391ea0fac964577a1c4b139de. 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/QMDA61316571.