Banda de Cornetas y Tambores de la Presentación al Pueblo
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 0xfaea22ffff7d7edd91cb01f9284da7a240798830020dd255435c3fbc29f1d776. 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/8f556976-9373-4553-80b0-3185f3ecd5bb.json and https://artists.proofprofile.net/proofs/artist/8f556976-9373-4553-80b0-3185f3ecd5bb.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 0xac9b2aee169c4c27f12d1ef0b835851bc6fb2f435d56b6da86abfdbf1bcb9a39. 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/ES5351203156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56047bd5182f1ad303a11df8501880de8f89e31487911a57023651fa31b2a27. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:59Z), 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/ES5352306254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42a8b563b3d7d0c990b3032cb6087ab1f2dac1d3faedb2f2f16f3d9c42243f4. 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/GX8LD2208902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fdfe9849764a6c80ec17144fb666e58fabb8dc94099d02ee1dedaa69c09c30. 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/ES5352306261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a2973876cb685b1eb8eaef127df356964be5928eba92c9207448d0eaa892e5. 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/ES5352306265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c81c4d12afdc5c678270f96baa044cf12527f23cb8bbe549fc10bfeb293989f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GX8LD2255080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d87cb55fc078b08fcf9973ed56fa031f3d86189d182a450fed3a6aefce30e8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GX8LD2249579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3790c4b3e5710993ada2c3a019f0b6d4b22daf749f8df86de0e44a6b26e2bd9. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GX8LD2263029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643a4ed13f40479cba5dbfa181088db5420b8dbd120532d52f75882d99a20b6f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES5300717542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65697b6ed4c186c0ffb45c0ab13f980535aaa08b7462e8c3dd61f5ce3d12754e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:44:04Z), 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/ES5300717543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beb1d6cc1ab655186b58af36079dafe6356de5c8abbfc359dabe8a92692477f. 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/ES5300717546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c794331dc4e07cf28a072ae696f986e9972d4f8aa0acce27535fb21e952d0. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/ES5300717547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0ed4dd9182d2fcd68f3143cac7a8906583e93f2554119e230db471e7004560. 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/ES5300717548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30dfb8037cd1268584eb1eb702dd0d44b0e4574dfe24e9e87989a4e6eb0eb40. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES5300717549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c8cb07dfc426599f138b791b4d63eaa67c691078669edca6456f595e2add3c. 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/GX8LD2254153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e7edff42f89bc589990fb408a4eb7b55279d5ad8b1c08f5adb5c5365d3537. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GX8LD2204287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7c53a0e26adb298a9920c9ccbc1ab9bc8fea8f46629204d3f8e818d1f2c540. 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/GX8LD2240371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8da5b42b3bb6b8419dc1fc2663e5b8c7dfc65e50c35124d3f421d0464a0221. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:38:03Z), 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/GX8LD2209669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f81c9be8d599915477b3217e60c757d6601e21288152dbb28baae4ae2dc082. 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/GX8LD2277102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbaf23b84af79820132439440c26c3dc53de43da6ceb464ce52fa5ce19697eb. 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/GX8LD2212182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f633953d6343cb4d8a1b4fcd0e5d0b8040aeccfd7e3fd4efbb99e9ac65443e. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GX8LD2275137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089983b65c3af7578bba75441049d5a601c210b43e3fe37ab829b6782dbf19d8. 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/GX8KD2376769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046a82ce6821b14021dbca307cce52aa0fed80544ba34d9dc35e037932dd5c28. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GX8KD2323661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda00c9d7cf7d37d1eef682107eb1f09ba4973af6d6856606643ea4a6f1775ff9. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GX3HH2387534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fd0a47c09b053042fa9f9a476710a35e0b9e234a67e3d5b0271734d3652c17. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZHN92585469.