The Submarines are an American indie rock band from Los Angeles formed in 2006. As of 2025, the band is on hiatus. Band history Working as solo artists in Boston, the two members of the band, John Dr
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 0x3a60ca6a874ae36381547f4a50e7645d139e59cee1fbb3bccaca3e45e5b177e6. 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/a7d30958-990b-4b2c-89c4-b08e30bd751b.json and https://artists.proofprofile.net/proofs/artist/a7d30958-990b-4b2c-89c4-b08e30bd751b.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 0x51e9a6042149ae7294306fdd048a77de2020e329cf4ef58ea7e24d1f4a6a8903. 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/CAN110600700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4352b2806e0326ecc7462e07ecc29109c345603e0f3be21c4e5938be973732b4. 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/CAN110600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39789483093960e1766921f1dd798e05732a1fdef587a8352507a7c40b5e1c5. 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/CAN110600702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf67fc4b02be48d3f9335a4f744f47cfc86b0ce6e70e7d979833e768b654a39. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CAN110600704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4f59077d9bbfed27e03735db3958a5b13204f4d12463fafd50b7fcdd67efd4. 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/CAN110600705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640da6f77ea392a158785a21aa46ae457019205499894f26e11743284d9ec4f2. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/CAN110600708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b660d10e4679c3a8c3a62a7306f296ad56559bf8b4bf1d92e9a2026240ee9d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CAN110600709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e6e0a940aa926136e7721383db6a3cd3a7120cc299844cabd08acf0c568a7e. 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/CAN110800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1cd5e78389cdd5c642044e4b820b4cf3d6d4f4f2e25986ef0e9031efb919cf. 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/CAN110800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec644c4688e2d099293d94e968007802fba846acb994d5c7f1494a71418e9259. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/CAN110800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ae97b8a90a5d31118fbd8a52a4412e8d5928a78c683bc867fcf9d6d731cbb4. 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/CAN110900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29f7742dc1e92ca8fa6bc006755e7ec1acf7fb22d7a58efb76e1a8356853c61. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/CAN110900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52545442f0cf3d7d8703ccf708562880b207f58a06d7025a73feceb8b44ea47f. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CAN110900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87b686687b6993ef1a12d9b3da4d0ce452a40116388be1bc70ecdf4e908a8a8. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CAN110800660.
Love Notes/Letter Bombs (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca56658cb00ca0e4b8b7a166c5d24c7fcc425cd67c3b3675e22639d446667bac. 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/CAN111000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac8e55e2971879650afb1b5d4997760f0513c0b1114ffb5d3193ac64fe6f94e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/CAN111000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc5bff4580391684c88cae180f475511ce50e35988ee744ddee62b6d1306b8e. 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/CAN111000385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3090d65ec4338dcfb1cc2658a3119d195e7c5fcbc9fe36aad49035f189521. 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/CAN111000387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bfc1b04317d17d62255593b97bb2d07230bf40994673530706573be744a120. 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/CAN111000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397f780a6a68ef2dae2a8345b31eff6db8ff07559dfa34902f5ba0ce8ed68692. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/CAN111100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf782a0e103a59ee94878b1ccc3a65d426cf25220548b7971454ec5c65fa27e15. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBBLY1601099.