Blessid Union of Souls (sometimes abbreviated to Blessid Union or BUOS) is an American rock band from Cincinnati, Ohio, formed in 1990 by friends Jeff Pence and Eliot Sloan. The band's first album, H
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 0xbce7c8fde380d95bb67ce5f498e8f7c161397a342c496057640b949bccc53cb1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1442c0c-59d5-4687-b6f0-c5edae162fdd.json and https://artists.proofprofile.net/proofs/artist/c1442c0c-59d5-4687-b6f0-c5edae162fdd.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 0x32cc1d63e3f41a32cc3aa9b30a177f1cc12b4712c032c3213f4f2642aebaa087. 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/USEM39400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1b860f92b6e87f33f59ef418f778d9bac73f6a1bc76ce7851ce94078995ac4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USEM39400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08397ba3e2d6230c559c8e1b0274f9f9a8341f317cf8ebf9f5459a54b0c01b27. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USEM39400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a82e26de15f004bf4fb7977193a5210017dad8347b29e2875df6cdb2d2bee. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USEM39700030.
Scenes From A Coffee House (You'll Always Be Mine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d757bd7ff5b45c05a9341de0e443ee8c4aa1774e5fea5bd7c9f68cb8c0b0be. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USEM39700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4c3eb9481191b14d136cdda60c09a5f4bbc958407b344466fea4cfc6fd39a7. 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/USEM39700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf8bd840f09dead1002be9d5f82aa7a2b401e55b3f9df140cc23e70130d3044. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USEM39700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5df24cf701b2a5b57f185e40e6b09c08e26775b4afeef4614fb420e0160372. 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/USVT19900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a73349a0860aab7ecdb77ca2fc9b2a09ae44c117c2c2cc7d3ec6b5dfbf9638. 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/USVT19900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf384c32d9f6c1fd0a96806e758a038c9caf5edb5bf765dbf4f7cccb3144856. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USVT19900003.
That's the Girl I've Been Telling You About (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a0c49a63096782c542752989676e723fd9a744b9fcf4e6a8373ab37eccf3d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:37:29Z), 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/USVT10100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307bf8baf7e1fbd7f90c26bd9a56091103af3b878596776544649f4e4569ace1. 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/US22H0791812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65921ee50dfb38e8d76b731a0f2fddbd9c16cd9e8e827497caffa22aac04bcde. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:33:56Z), 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/US2G41100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4900d1846198637a62a164ada07c076a1be6d2d759231c920aa1c519937537a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/US2G41100087.
Pacific Terrace (Living in a Wonderland)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aef0b1b78e8443c0a0ee854578e819f72b4e9b35019c12fa9dbf76e775e0ef. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:52:55Z), 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/TCAER2051953.
Hey Leonardo (She Likes Me for Me - Artist's Choice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721f2bd4fb72e7ce67a7c5658e7bd488290cf6917ce13ca76d7f295552fa5d93. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US22H2310061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c99989c32a3d703c60b1b843e3c9692e61f33891d9ff62644bd006d238d70. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/US22H2405031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af96578abd7f34247b820536e9f4bcad52c7425c2302f97300cd9d92f71e561. 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/USCA29501785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af96578abd7f34247b820536e9f4bcad52c7425c2302f97300cd9d92f71e561. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USCA29501785.