The Expanders are an American roots reggae band from Los Angeles, California. Biography Formation and Self-titled album The Expanders formed in Los Angeles, California in the summer of 2003. The band
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 0x1af6becec5ea2439d6322018d1c753c332527b8f37007058877291ec3fc6672d. 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/0a4a13a0-67bc-426a-9a04-58bc3cb4f52e.json and https://artists.proofprofile.net/proofs/artist/0a4a13a0-67bc-426a-9a04-58bc3cb4f52e.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 0xbb3a1c8e91dc5febf2f8220e30221c31b4d655cf5352154794c6b3dc265fe178. 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/JMA271400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62260a2f392d20d5b99a58fbf56fc02a901fb31b5d1d168b5696296dbaa214b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:07Z), 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/US4CL1510063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6a9ffcc8d1f2ceb65030757551678c6f0e1d4a52f7aca1ca01128918a026d9. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US4CL1510065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6bb7e06434f03c83e612b5d1c3d771d268290a51e1fa6163bf5cf9d6a559b0. 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/US4CL1510067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f3705eaa9be5ea9f5ef83960972294fcebb0b18661d0e256cfcf044b8eb93e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:12:07Z), 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/US4CL1510070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c33785784100007955b24302e72a390ebeb0486831e75c0ab5b5e53379b9170. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US4CL1510071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5795d4e8b63097b40f4190def355cc3f74c27891b9dfdfbee3b3b01ac5dd610. 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/US4CL1510072.
Old Time Something Come Back Again Vol. 2
Old Time Something Come Back Again, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bb0ae381dc28b2b295b1158e725372f17eab330753ed0c96525a52a7292d3d. 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/US4CL1710080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832a1c93249b926a952b24487cd830901ceea17bd425bf7b2517937f2619d6af. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:48Z), 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/US4CL1710083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31ec0621e82137131f7d9d7020dabde3d9f1ad1e9d0b319c1366c9d03e1dbf5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4CL1710087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c9618fdd0884bd0bf145dccaa57930229c65628b5f27787ba47b4c61c08bcd. 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/TCADL1856981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790d7645c73fe90ef3692e2601540e4720d9fe943791c30033259998f2468f03. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USLZJ2123037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2493072e0d09b6a738c98de93a01fea57ef85d865151f52e1115c267915be28. 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/USLZJ1907769.
The House That Bradley Built (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725d994970b28bceda73716a615155faf8da8d2cfa91cad9597b06bd45467fb. 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/QM6MZ2089786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725d994970b28bceda73716a615155faf8da8d2cfa91cad9597b06bd45467fb. 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/QM6MZ2089786.