JJ72 were an alternative rock band from Dublin, Ireland. After forming in 1996, they signed to Lakota Records in 1999 and released two albums before splitting in 2006. History Formation and early ye
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 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 0xf9e9909381ed6e5a1c45ceb4b516da0a55faeb043d228619acf27143f5e13332. 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/c331a986-324c-448c-8786-46769b5bc0c4.json and https://artists.proofprofile.net/proofs/artist/c331a986-324c-448c-8786-46769b5bc0c4.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 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 0xfef73c0514650c97635d5f0ed383e264c130d54b8792f8cc4785e49821f01453. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/IEAAT0000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61544a80d094678214ce535b8db8ec27a75aa8d64dc9006188f0b8f4662bd42. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/IEAAT0000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089c9e383ac745bd07365456219dc116ada27949bdc701e654152df3f3cd5d05. 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/IEAAT0000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8255ef5f1d51b3791c8c3410bb8b73003a8e285acf75ab17a94d15b9d119d. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/IEAAT0000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d36ae2bfc922f0b6b5c75f031d95e01b1cdcde0d973a7dabcea78d2a0abb79. 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/IEAAT0000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc107989d1f6d3c998c93c0eec707d01f325c01d3a8dace244d26ca50d9a55596. 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/IEAAT0000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8e842d369adc0793406216c46f8010299844abeffe5d9aa7a95473856ec1f. 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/IEAAT0000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c61908a8049ef4a604949571b9ec7f78c65d73089d7c521036eaf08844ca4e. 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/IEAAT0000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91af154f67b5692c0b6d066fb80ab8cb1c21a4dea1a7a0ce70479e12151b664. 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/IEAAT0000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2502c21c2c75ea726fc29c36345e861cdc49d33c7cafa1561a3908232300dc09. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IEAAT0000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905deb8defe6513ca77908ef249d38bbfec49281e6fb819693baaeb6da1a83f0. 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/IEAAT0000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c372ca787ff43b3d5a84265ab068d2648ac94ad5b10e37ba8d60dc38c46ae5a. 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/IEAAT0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7630066c4d9c6c795f693a10632d4e9a2278d92e4daeddd51bfbe7c87ad8b6fd. 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/IEAAT0200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0105dbcf4649e6500fbdb29964358f2766b8d9175994bd3edd7ce02194da15fd. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/IEAAT0200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0cfc9cb9a54821177a9652babaa04fc246e242753418f565c04fbe004a2f1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IEAAT0200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c9b3bffedb671c1d357d0b4463a274c5f823b5c98fa2c3e939f4fa2ba90327. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAT0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07db02058948a16746232c6fb54508676b8474ac48bc14e43159522f85e07a4a. 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/IEAAT0200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94032621ef625af562e13d643d89d38a45ba88a1de3d397cf5c54e1d066f2c93. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAT0200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a3cb0eec82147424116fa2488851abc30a0af950c15425ca2e31e08775e1e5. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/IEAAT0200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1390c200b44965ba35d6b77f85a0dcd7fd8408c4cecdd2c6f7527dd5c677a23c. 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/IEAAT0200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58460bcc51dd15c7a80fa8d98ee900850f818c5d680fa2a97863aff3053cfef. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/IEAAT0200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52791370d66f77361edab9c9288351bfbeadedb51cab9e94c0284a0312fb1538. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/IEAAT0200012.