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 0x851341bfc395769421f4e09e14fff06af344f2a6ac8353ffd92f30829f446d84. 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/fc9d5cee-6ac7-43bf-b8fe-654e64dd3e67.json and https://artists.proofprofile.net/proofs/artist/fc9d5cee-6ac7-43bf-b8fe-654e64dd3e67.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 0x5d855d460eeb63733f4f714866b4707d062ad4f8f56c26d46c54cb2c1de1ce7f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US7VG1618285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7b96e348f695e0c3c6e5c6dae52ac20cefd9404dae68661391f2a5bbbd3a3e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZGLM2197846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93811433f20320d5c88f7a68ee480f5bff9b77bb2482f8305a48f5b2df59c95c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2197843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4946bfbb43fbfa4f1417729bee40760f85ebe6f528cb6bafa872c25d0c949eda. 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/QZGLM2197844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2462f3d9824d134627eee43e6cae2d5bf43d99a1af28ddbd5e6bab1103a61b69. 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/QZGLM2197845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08470e30b1b386a7e9f9bd48aaa8cab72d5734146b5e4313ba770c6e06079d98. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:25Z), 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/QZGLM2197848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4af82f354ea3e1ed503472a8cfdf1798ec173548238501c9ecedffcfa10d30c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZGLM2197849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6937947ef9f243b73276aa1097e482a005b7f03f5e8eca5aa18288051ae99ce0. 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/QZGLM2197850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0f87314862842285e4a7ebb78c59e08d5b95fd381ba682484455bcf0e083aa. 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/QZGLM2197851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9698e348b68c230ed83481f42cb586637af5a089a78bf6157ea2fa8652fe8c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2197852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49692e3ef1d406c9d148b94b54cb5a763003242be00defac5455f053d9210477. 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/QZGLM2197854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdb0c8a2c079b9d5e7d1513612ee3f4e3a9723daf6f0d483ad016ee0843b8d6. 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/QZGLM2197855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f9fb53350187350bcd293416b20f3361febe1f21fd2495170711231848d656. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:47:06Z), 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/QZGLM2197856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372ed95c7cda42941284ef4f8c47b3697c80b57b9a77da6b6f0d609127d288ea. 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/QZGLM2197857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24729a14876da612fb2fa994c5031b476477ca2a98a81b0ab5633c42cfdce2e7. 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/QZGLM2197858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd612ca118ee5de271befd3eacaca194a1e67bedd2c9c87fb7d974cd104def991. 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/GBLFP2072030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed31ae6f7ea6b65f7a7e596d601311b6b947c1fb0fa5747575a67183b4d07d1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZGLS2122346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d42329e4d9b2ed706987dc7d257772b16fcddcffbdeb5ddab5c3b55f6198c3. 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/QZGLS2122344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6fb489284e5fbe838fb46d6d968aeabd4d0685a7098b4dddb03eef8ce4a89. 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/QZGLS2122343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33834740b4585be2150392be12147c0e1e25ec8afbb76151a315786dde589201. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF119903601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8601b0365c6ad0504b1ae03d5bbb3ba56b2bf0f272b8132b7f54a34a1d244596. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF110201412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e90f20ea95310052ac537059ec27dc18a4ac583b795669d637458a3c1e08be6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF119903597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5416049dc5f7e34f243dbc920a1928fbd9a0b38924c420c9685bae735eba117b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF110201411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc40da0fadc245b9c8ee7e877d1d87ba0680aa1a9af33237364d7cd19f22417. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF119903598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfef5c22d56bc5f52bf5706128e90f6aab73b350a5407b84f3d9dbd971c24329. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF119900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5703f8f7a0ad64cf12c732a0e9dd52d4b3a5df9dccc3a20ca768ed541063cb3b. 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/MXF110201413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6654e9c9873af58e31d39c113f58fa5d757d89edab3645502ddeef4fe7684a30. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF119903606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b1efe08544c3406b7129fece17adea0818d2fe21b11c9e75095cf05f0e869d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF119900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecb11c32a9ef62c1a4e44c9e579af69369ae713ab00b7946002eb3194363ea1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF110201417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4756b92d31fa03f41107b299e4464a3017dc486c5852b4f4b8b34d65df9be4. 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/MXF119903600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7256a6cd3a9658727c629d7fd5022d432da986bf40ab1a232d56c5b8c4018b15. 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/MXF119900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bd1dca0632abe33fe3f139438c938b5061e1063cc23853e1d1327acb841ba3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF110201418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc49067c11b12460496c8bcbfdad1f8f5b1e0e1b3f18e8de66a912068b991b. 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/MXF119903599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf150efd3be97d68f21840ee67b41be8bd338f7fb761e1bc330a439a5498de0bc. 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/MXF110110003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff87385ee904ef0b6af254e2e139a8931633ad0d8518058dbaf0a0c3569e7d49. 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/MXF119903608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3f4cb5f34884b498b4c815650371f1e1415d93a2397339eb6439ef9eb1233b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF119900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb536e04f279003a56bbfd88c1af5c50f0cae7302fc680e6394dcd596d463d890. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF119903604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a361dd85e1d87784dfadb8907a461645a80661734df2b8a042625532b6d0a9. 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/MXF119900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f808261915f4f46de4f6e2e0e35858d0e1f06fe532f394a4fc257c79902a05e. 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/MXF119903613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534861fe82e9a2c6ca4b12093bc535201e14127f40fa205047ebab29768b9c23. 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/MXF110201406.
Escuadron Revolucionario - Segundo Batallion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29db871aa8fb35771ae17fcdfcfdeb947e774405813c8df8794e4d6e658b11e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDNB0618801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf632f771dac99f7e6949d8c5dfbef1f0cc8ff94cc033b83705952a4f4bfd7b1b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USDNB0618809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0739348cb0fa3778a683372601781ed7d60f209b32f50467bac45e541b1c93. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDNB0618811.
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 0xfa111daf7bb56f1180972c7fe0275594dd03b62e68ed13ef4cea00ec61e27c9f. 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/DEKB71677086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c04196082852ccbf30bb5cb6e1d1e96d2e6fcd24e0abcd201ca4f2a24f08e4. 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/DEKB71677101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3ed2e40a1f214d4eca27f91d716b9adc596e754ff6887532eacaec4cc060f2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEKB71677083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55659307fb3787bfa957b2db86e4caec075c8845fb4ab4c7a283789ca8ee3c56. 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/TCACH1520328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943b0a0695d835a9519645fa8a182af8ebf30102ed9ab8935adcdd74e0f4d748. 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/TCACH1520331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d548fb7c771a667464c892e40aac30a2a9c5a37a7452c32085fe7f858bf125d. 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/TCACH1520336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b643c308d7e5c63f98ea219a224a6c51ff0f05eb179fa29bcfd645a7de4008. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCACH1520338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d6770b4c40e71308dbb745b70fb59a916a49a0f6827ed18f5a7749d9823b42. 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/SE62M2172777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec799c0eae4f6218420c0edc3ac3e65edf3b4beb3b7aeb42ade76f40da7508d. 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/SE62M2172782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84075b774ef15766a6ca385143aec2f203ffdd9574bd6a7a0382b0baf8ab304. 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/SE62M2172793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52401f9e0bfeec1de6fee9f670311dc7852df0a4b490196ea559c4269ec8467b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1729792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad29295d6d4d20aed9e924a00fa63c91db1a398a1ee2ec0edebb60b3b8cde09b. 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/USL4Q1729788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990f41390092174f0a9d2fe834f564cf3740006cd608762c2b957200d5da6714. 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/USL4Q1729801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4aea4a3f1c1c2350d62072b6acd6d78f03d83e5dc9174b0d7bde94766f8440. 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/QZNJY2472233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9785700b19e4b506e9a3a15af1eeeb304b8e1341955789087dbe582cf559e42. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:07:37Z), 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/QZNJY2472237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05d2a5e15527a7f859d5f0a77ef796241b647b5c3bb34aff524a5d4ef944f4b. 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/TCAGQ2212744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde66d396b1e2805c8e29491ab2b6907d07b3d686f2162489e28cb9a602c7267. 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/TCAGP2213670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f69d6176d3d7442bcd6cb86ba781753e2dba4c22215590f7ac46f5e4d738d7e. 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/TCAGQ2212773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151e240502ca2a970b2d67825b1a98f36be210dff07dfc2173f0c365b9a809dc. 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/TCAGQ2212854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784ae1f7381d41ce8434116e7df6abe315fe45691e446ef90f85298046139261. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCAGQ2212736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210352d1b9707899afcbb1ded3686202bbbe8dd587f1aae9f20d8b93c50b78b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEKB71677076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320504e06d516e36ed33b208ed4e1a4bd8cbd8a74f2967bdf408e8a5935ec267. 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/QZ5AB1608450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5e67dbb30251f83377eb886c1521e63d1d8cf7c26781d34ed7ca5b9d6d43bf. 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/QZ5AB1608455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa676bc06177869b1acb401f646ece320810320918f7a46e70cc34971ef38f48e. 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/US7VG1632822.
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