Bounding Main is an a cappella quintet focusing on traditional sea shanties and maritime music. They are located in the United States. Formed in 2003, Bounding Main's musical catalog focuses solely o
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 0x9cf59a9397ba4bafbf38350fe710bc96986c54e84513fff5b34ed40ce18ac3b1. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e57a2bdd-00ca-4ded-a5ff-61e05fc81d51.json and https://artists.proofprofile.net/proofs/artist/e57a2bdd-00ca-4ded-a5ff-61e05fc81d51.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 0x978b76b3a53bd60d7e1f1cd847eceaf172b44af089c6bdefc827e4f948ad8cb5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ0586162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9243f824441d7e2f777569890e5d5a5537e623df2a486e47fa0890fdce35222. 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/USL4R0705692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4e9ae6c9c64064318a24eb10696b0e73241ecb96b94106b7788416a800c530. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:20:22Z), 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/USX9P1090649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadedde1e445a425a6e44abd06be4bc0974f2353b73bc7c0d78d9b0ad700132be. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:34Z), 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/USX9P1090660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ad7e22f473f94b672bf1ec5874e152aaaea6399d0680d9c1bb8f4ff0c80d02. 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/USHM21608448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c406fcd55e6c688f45cf56ec28176d6c05ae2ee6575363ffc804c995fe5cde3. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USHM21608449.
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 0x39db1f935486860ab6281802c6dd77586a8c1b9660f2e1db8d6b7bb273853bed. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM21608450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55eb1ac76df8f450a94903ded3681dfd4ad754c01c84e60919f15d31303efd2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM21608451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186919635b8926238098a219b150b4c4ff80325f12a977dd7ba95db505032f98. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USHM21608453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc35cbff562c8bca11e9ff21c081fda850f31dfc2b89641a75e365d3c297cd1. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USHM21608456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a3200eb034a87567ee72dcd24fd4625a9bf7169156b6d7d6c4a4748ca3c123. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM21608458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e867dfa17d5151d58572d1c2614d048eabade875a24c271c2b0dcde6071d6ee. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USHM21608459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cdc12e9098c151cd02c7cf8a151c32f2f1f49c623e16a3aac8910ac657c28a. 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/USHM81299765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a394bb99974c477631d959dc7df46f99087d9830fab213fddf17f2fcd842a0. 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/USHM81299774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31df85343b72a9233c531b48ac2e14109c7eb001c52089414a171af452bb0d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USHM91204078.