The Youngblood Brass Band is an American brass band from Madison, Wisconsin that was established in 1998. The band has released six albums and has toured throughout the United States and Europe. Hist
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 0x409ea10c47aa40a4b35fc2de1774de7a4e94f79e807afeb193e09cd8489e8e57. 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/ef991e94-e755-4dd1-898b-dd3550f4135d.json and https://artists.proofprofile.net/proofs/artist/ef991e94-e755-4dd1-898b-dd3550f4135d.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 0x312851845b914f3251654965759af99a00a9ce1c1240e3ba1e2da760a5d5851c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:21:22Z), 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/US83F0600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d00a641db586065810557a03f71199cc0020dc735c9ab9a6bb0869e062caee. 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/US83F0600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34880b29b15cc2c44a086bce78ddb4e554c720264cb809880a6b77675b177c82. 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/US83F0600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8adce480db88e0c15604d7a234dd3268219e61291f7209314c3a9343330c444. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/US83F0600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fed54a02420640d7bb8091999e6d9ae82a73f9c5ad6b8b2afb2648a6db8e8a7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US83F0600087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef2b9afdcdf69ca518743c2fe3f981ed454430005bd33d0a2c9642864e55d9c. 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/US83F0600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51da7f2d80711160c603c40af7589caac9ce49a8a789e870de40397bf5886ba6. 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/US83F0600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12ab48f7ef0c06bcb5625e6f53040b16fb121b82b4248fbbecb107cea46c696. 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/US83F0600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02090ba9c26b760189095ea3c09c6a0b5c73fefbaeec2e6751964328d038158. 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/US83F0600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78722a95369f7472cf1c234fbeccda5d76060de360fc1f8623d5bb1d9dd615d. 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/US83F0600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3414536f39a0f2428233562a5632b16fdf6a833823991ccf56e3316d7d8f534c. 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/US83F0600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a97b306ae49d38998bffd8e62e07dc5f0af7633abd2db079816fc9a87511782. 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/US83F0600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0fd256d0d9be5ed0408ef06f51f525ae900d63e7f48691e56e6fe4350f7531. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US83F0600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5611206cbbb2cccec08c9a202ab703b98589f516cd5863512551a5431b6d3a8c. 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/US83F0600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45668883e15a12503d2832b4de333e3e11dd86f9f0810e80ba9a4fc687a07e8b. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:22:15Z), 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/US83F0600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125a7f88aa3a40bdda9324ba297dcbc629700455333825d55d257c5158a4c7ac. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/US83F0600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7402a1fbd8217c5ec173530d4163de51735fc9d583fdc67c099ac304b0fdb1f2. 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/US83F0600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2849fdda30d848277024aa7716d8b6ddb4223ca152df9fe9ca33c2209c39ba2e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/US83F0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38f70c6b0f921d2b7d836c6707109b5da9081e7b977e64af56c40f96f225b68. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/US83F0500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c6876884aec794f9ba7170cf6e8e5a029101a36ade0a1ef677ab5b99a4814. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US83F0500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20b4e30c43abff542654c977e47ddec52ce71c32637b442d24786b8e74799f0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US83F0500016.
Pastime Paradise/Friends and Strangers/Human Nature Pt.II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d82d56c8c15f3fd4b19ee82a08d8466f2e87213b1e88bb7c1f574a456c388b7. 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/US83F0500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf4cbb571cd9fbed6cb542fa569ef83631c8a71cd9e1a738e0219389c81d3d6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US83F0500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3233c39b6bddd22b1e6f7ad725c1178b493f0bf538b4b7812b79b026de05a7e. 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/US83F0500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaace1f3d862280668c3b54842ecb5b0dcce40028d5bafcda4b8938e27c38363. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:27:35Z), 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/US83F0500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed8920614e741d0be7ca5e6d82830dda66ad7b36ea6d7796b0cfe3ed5bbb5e1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:09Z), 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/GBEUE1300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33fd93a3da3e122f9218df898c39911763a738486e654d87fdb5a86b61a2ace. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBEUE1300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44c657a2ec8239228a1b1c2a99ada2205b6710738ea3112e46eac41d747789. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBEUE1300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed8920614e741d0be7ca5e6d82830dda66ad7b36ea6d7796b0cfe3ed5bbb5e1. 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/GBEUE1300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33fd93a3da3e122f9218df898c39911763a738486e654d87fdb5a86b61a2ace. 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/GBEUE1300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44c657a2ec8239228a1b1c2a99ada2205b6710738ea3112e46eac41d747789. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:11:13Z), 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/GBEUE1300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b52d8ad28912a68104f2f3e8b40e2b6d6ec0971f9619b97ad77174085f329e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US2391804204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab7ecc33cda3418b808e759297d496d572e35a5e13179fc032a722bcdce652b. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/US2391804205.