Rachel's was an American chamber music group that formed in Louisville, Kentucky, in 1991. Former Rodan guitarist Jason Noble played music individually and referred to himself as Rachel's but then beg
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 0x2c1c0fa2a5c2bc1319eba88329247dd4a37f530e37c1b7811bb261323ee0b835. 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/273c7a01-f436-4dd4-96a9-38343f93097b.json and https://artists.proofprofile.net/proofs/artist/273c7a01-f436-4dd4-96a9-38343f93097b.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 0x849fd3da1c0b6c5db2860272fc375a6cb7e7f09e35f21f5d97b0efcd04fc86b1. 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/USA7G1010665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595a58a231e32ef28a434afd4ef9499e3e46f33518106f7a4a3db200938b18fe. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA4C0307501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef2d58126366489719bcf4f20f3f74a5e5aa6cbd5ff2f786b955776ab1725e4. 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/USA4C0307503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9a5d1d466813ea2c7c3a1a31ab490261bde4d1bbfd047a33869e915ba02c72. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:52Z), 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/USA4C0307504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9a047c74364f82d08111316ad3ae9c44a6f9174e86d2105ec9c3b395da7214. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:16Z), 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/USA4C0307505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f5e3d622205dcda4419a4bbb474cc170cdd2c60e640f0127365c3e23b15926. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA4C0307508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d8225e61316685ac8680a44aefc8ec0ddce5876735efbc11218ca8dd2d7a2. 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/USA4C0307510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841f57f86432ad8ccf464ea8b64fd5498ea6bcd3ff5536bd7d6c442d3605d194. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/USA4C0307513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd470563c823f1de33b64a5d0456ae7eb5893b594a7c39853e8ed3dd391ab50. 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/USA4C0307514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656ca025b36f3d7c4261194a3b253c907bb9c655f1bc1a9a3678fc69b6d12f7c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA4C0307519.