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 0x413b1365ba574030e6e997471b6a1a36f5d7adfa15b10cbf206e58c00f044063. 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/2135f1f2-abcb-42da-9e17-3ba042710b3b.json and https://artists.proofprofile.net/proofs/artist/2135f1f2-abcb-42da-9e17-3ba042710b3b.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 0x22f0e124cc91e1d904a6f0f61d14a138f6c84633e29a41774af2633dc9426f10. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USSD10900258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239be4a33533bac9bd0ec240d9f08302de39f3a1028aa865d9716c4bb901084d. 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/USSD10900257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a7f787d4f59129e63ed47c81b573084787531befa3f01bd3c506ed5bbd598c. 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/USSD11000285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca08f9d72f7bdeb906ec680ad5c93ce8857066b2cd03e0ab4316aea6ee7a6a5e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USSD11000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d40c8ebb235be1f425863d2eb356524855bf6d66beeab36e379edee48eb880. 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/USSD11000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed337bf800dcb731dae0fe44e4dc2f5b018da9ab98da1f4072563acc5f8cd38. 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/USSD11000277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554495e0f8afd2e093571ee412ea460bdcb3a3a29ee64865a9b7f30b23aaf65d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USSD11000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334fcd1fc755676feb98fdbaa64f93fbc162bf04bbefce2e46417747de28373c. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:24:01Z), 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/TCABS1491003.
Señorita Cantinera (feat. Sergio Soto "La Moska" de La Maquinaria Norteña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb425d4923cbd345378351e1e17f8665e5eeb556addc24b0e6a47cf80f33d3c. 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/US3DF1630279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e55d524b257bf7c6f51e90da4b6029fe1c1271323aa9bdc090056161a54ff. 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/US3DF1630295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb425d4923cbd345378351e1e17f8665e5eeb556addc24b0e6a47cf80f33d3c. 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/US3DF1630279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e55d524b257bf7c6f51e90da4b6029fe1c1271323aa9bdc090056161a54ff. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US3DF1630295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f1b41fa4b778207b7f3ef04484ce5343bfd7e8bf9e62232d17ef8414d9aaaf. 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/US3DF1717790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181c1615b8dd70ab74f1a3dfcb1de9fcf5c058da89b156e7642af575ff3813ba. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/US3DF1717791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67c95f2ddcbcabdbb122e23e3615ff3c27cf565db3cd330266b245839c5749c. 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/US3DF1717793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4d96220df3793bb8224d30c9661f782d5fe6807f36b08b044bfdd39393ad51. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/US3DF1717794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa773cc6aa413da02eb324346faa6eecfdb250dec4260280f407720f26564dec8. 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/US3DF1717797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f1b41fa4b778207b7f3ef04484ce5343bfd7e8bf9e62232d17ef8414d9aaaf. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US3DF1717790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181c1615b8dd70ab74f1a3dfcb1de9fcf5c058da89b156e7642af575ff3813ba. 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/US3DF1717791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67c95f2ddcbcabdbb122e23e3615ff3c27cf565db3cd330266b245839c5749c. 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/US3DF1717793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4d96220df3793bb8224d30c9661f782d5fe6807f36b08b044bfdd39393ad51. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US3DF1717794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa773cc6aa413da02eb324346faa6eecfdb250dec4260280f407720f26564dec8. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/US3DF1717797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08905d30cbb02df5fa183964a38cf8ed801428ac01ead9e085276a036316d7ca. 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/QM4GJ1700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4bd9513b0e3bee676339ee96da6cbd726d86c266f90ce99ac95e875cc01a92. 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/QM4GJ1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08905d30cbb02df5fa183964a38cf8ed801428ac01ead9e085276a036316d7ca. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QM4GJ1700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7958a778e8cc8473cadcdc0f59f998803ad8037ce83d9c2c6da86b43f4c5e15d. 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/QM4GJ1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9065d1a24bfcc85323e12dd4f14234f284d9e7ac6bb49617228ab16b8cd38b66. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:08:32Z), 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/US3DF1813822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9065d1a24bfcc85323e12dd4f14234f284d9e7ac6bb49617228ab16b8cd38b66. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:08:10Z), 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/US3DF1813822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4182c4b7d33e4c266e8750480b7510f971cd03e9db8fe3dd8495b4df052476bf. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/US3DF1956706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4182c4b7d33e4c266e8750480b7510f971cd03e9db8fe3dd8495b4df052476bf. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:30:11Z), 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/US3DF1956706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e4eb1bc7fbafe75a5d8b5a515ce4ebf1e9f8074971d9222f5c0f1e31d21eaa. 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/USANG1927553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e4eb1bc7fbafe75a5d8b5a515ce4ebf1e9f8074971d9222f5c0f1e31d21eaa. 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/USANG1927553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ed5b32ca49edc2a9e657fb58da29f80d2f4f42b4a18db4cc4baf9b5d7cd3e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USANG1929209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2d1a588bee3694176169f8620b88c9bd50a100bb569a2a657f74ecacec2a6e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USANG1929216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ed5b32ca49edc2a9e657fb58da29f80d2f4f42b4a18db4cc4baf9b5d7cd3e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USANG1929209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee48b7e00d17fc642852b65563535e661e3b71324cdf64a3dd4927b9c2c9045c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:09:27Z), 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/USANG1929212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be98e076474f2baa836fed4e45e2f34e58affb4b8c46140d7797d81106b6b77. 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/USANG1929215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2d1a588bee3694176169f8620b88c9bd50a100bb569a2a657f74ecacec2a6e. 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/USANG1929216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1615594f4927dea52f5bffdd5dfb66fbf79288a5044e13eb539afc5e3cb7e274. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:07Z), 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/US3DF2207849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1615594f4927dea52f5bffdd5dfb66fbf79288a5044e13eb539afc5e3cb7e274. 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/US3DF2207849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde5d75064ce3d8cd503b7e3dd03de559523c94b2ce71fabab05c7683e8d072a. 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/QMSAV1103742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cc5af2e65500104a70750daf23b3d3ae9ecd679c6a1fea564fc74913be5459. 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/QMSAV1103976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6e49030b6ee03401adc6290851ba9a679fc1b4b7f3e0b77d7f4c62a4cd06f5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:13Z), 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/QMSAV1104127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c30db100a012db94018b55bda2cc49db96fb244e339ff183dad91db35d3f08. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:15Z), 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/QMSVA1104848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfadc5b073a3dd07800b248b3dd55c8f2c239b37bc109f8c4383eb4103ad931. 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/QMSAV1105606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5b1fed62dc736275577b84896b6ca6ea61ecf26c4fa97f8efe5031a1ea70d6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZP3W2400925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33dccb670403d87cad0ee4f6a0b6798d14b2d15247c212f379a95406c37df2a. 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/QZP3W2401428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dbd838931efb7b0d4476c1e8a6337a5f0a7cad103ba87e5d2b006c76700e2c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZP3W2401429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe087fdfbf1a0cfba097b142d216c963e856702d07e4f2800d8ab1de355a22a40. 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/QZP3W2401430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc3e52b198fa1686b10deda7febe5b54f44fe5d0ad633043a42f77992776a14. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZP3W2401431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a818580064759d6e58dbca3cfb6746fd131c09d26e006ab52804b0c1aa3702. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZP3W2401432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002bfcff54a9d0cb22961d5198d75ab8da12321f86f3b0d47a53c5c87723d9e. 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/QZP3W2401433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e09c8671cc739e797de4f4927985702b7f3c31ab33e7b5348644bbfe117942b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:37:32Z), 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/QZP3W2401434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa42ae50cb1e055f75b915c0e52590c80339abdda6e615c9aac2c256bb7c0a3a. 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/QZP3W2401435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e52c8293a4743c7589e1c4cd57b3f4ab2d7b34e02a3fcce78476eea1871f72. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZP3W2401437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad59b3f8fd621e31aeef920fc75b184ddca0a9b5ca8d2588f3f1d0012ecab79f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZP3W2401438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59c0f2ab07373d7c098f81d200a8fdbf8dd05f1d4284ff1e485619bb924bfb5. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZP3W2401439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19b1952758f6e2a467083d0398878281fe92e3f2739b8a01a8e1835893b11fc. 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/ARC572003126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19b1952758f6e2a467083d0398878281fe92e3f2739b8a01a8e1835893b11fc. 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/ARC572003126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a20ae8135a95dd81c9d0b27306c0a0d3321679e3198e644a2161120b10be5e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA72438346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112ecb6dc2f05392fd8a93148297e16f84a74d73606cce4403777244eddc304c. 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/USANG2114656.
Nuestra Historia de Voces Edición de Oro 25 años
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d315be5c1e9d716a5d31a5212b99199efae67c52e9bd0682e5cc083ea669df. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBLFP2486466.
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 0x672599e2adf4846c28a16ab2ee1b1b4c39ef4b45e80ce2c47e7272561f52d8a8. 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/QMSAV1104486.