The Black Lillies were an Americana band from Knoxville, Tennessee, founded in early 2009 by Cruz Contreras (formerly of Robinella and the CCstringband). They toured actively from 2009 until their fin
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 0xdf1cd3cccb43f0970e0aaf3b50832a77389996d20cef448a2d79489311ac0780. 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/43e64f13-7046-4828-85da-882929d642f2.json and https://artists.proofprofile.net/proofs/artist/43e64f13-7046-4828-85da-882929d642f2.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 0x73028525d30e7ade2ebd82cd1b37f264704c14af0f89d2fe6d8e72576ed649b6. 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/USXN21300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff93874ac1eb5ef4814eeeb9bc5f7525be1ba77205df8103b4face5a89f0f4f1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXN21300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6e3efc9d1c52d3a7188960c6ea917004f2c380517f7b7fb47a53d6066cd307. 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/USXN21300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7793e485b2118e16b36112f588101185513e37b6167982484a5a51a3c5d834a. 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/USXN21300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dc903a5979fbf52354fc7670bfa4aef15d49680fcec1804836b40599b206f0. 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/USXN21300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e65251a554cf00ac50940f0465fa71e8866cc9bd6431d92482e7e2835c3844. 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/USXN21300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77039db4116ae54d7b3d4a9e84ab4ad0517450ff88c837bfd1621e3cafda20ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXN21300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb3b9619dff88c66459cc0b2fd57c5a8dac1e07663f79ff476f775ec4424497. 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/USXN21300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a46ef2938867c3ebc84e26fd3dd2d29d99fe4975b31273730f35f73919cd2a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USXN21300019.
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 0xbe524d06355f119bddeb8246c660bf0173bfe6fb2806ceeb34b3b352566158f0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USXN21300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48eaed0f85bb12c242ba8627e4f1405b60e65b9c65869d2cd6595f8e541b7bb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USXN21300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3849433f5c35b74ba6e66ab42ea24a09d5bce9b3439c91dfa8a7baf0e528d15. 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/USXN21100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467f293a46e83a0cafee9131a49f4927c09ae1e6eca1e4466264555b369229c8. 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/USXN21100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2fc75718255a162e9b5fc317218d68e94f6af823973d09fb8431aefd2bc1c5. 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/USXN21100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160da88697d66fdf662b809984f3776e8bd191b090085346b604877a348d35d. 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/USXN21100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd152dda9b307ef7091c3404ef8cdcf59318488166be6d4c2a93a4e4ec17cd4ef. 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/USXN21100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f75db5ca91eb3587ba94fff46710023edc7c5065c9013b689f7ea749af065b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:56:51Z), 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/USXN21100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e29535ce7f8ece6d01de432ce52b754cffbea8cda12e438d462bff3721ade8e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXN21100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7700b9cf6b2ec70763c132142d3ebf15efe256134880090e1db9dc96ae44318. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USXN21100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80867b03b9a5f3244ef7824c4a573572ae184a64b6d86eb7cfd38198c38670c0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USXN21100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b53ec0ab0acb05d6762fdf69ad4eb89d2a81a10e5ed56c14cb46ca54f8ef674. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USXN21100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7fb2cbf586c293c6e93278f53d4591281d68822043de14f26995540e67aba1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USXN21100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9139345ee7956b495a39e3d481b9e51f34a5b5de0310e01f09f99225d946ab6b. 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/USHM20924045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd44a44032e0647f2d5d08cef6567e5823b92d4d97d57f1752221c4517da45ef. 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/USHM20924047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6415d7a951d2ffba45cffdd04b58188026c37a345faaadf22fe61240f778b9fe. 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/USHM20924050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaece5f0088b99ca671f6521d4fd8724b3a91b1ad8a321e7ad430aaf60ca4367d. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/USHM20924051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9293d4ceaef76251019cde888871860fc18c615277bbe31a8dfd87d84236b0e. 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/USHM20924052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0038e839784b3ce8c795c382af4f19711509a83fe7a72ba81250d639d8134513. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USHM20924046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ee7ce674b54014a64c6abe2cd271df3fec677f5dbaf612663d1665812eeb3d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USHM20924048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb817eaea9e74b5123856d4e69878c5ca8a7a69cdc7383616539e356c3dd11f51. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USHM20924053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117dc27df7988d8184e01601a29f50d85ff0f14ac1e0292f52c7f7c9602edc98. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USHM20924054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3826b5012e89b8f4b8628bf31006ee456f466ca231f11e0976af12d14db397a. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USHM20924055.