thumb|right|300px|Blues shuffle or boogie played on guitar in E majorWilbur M. Savidge, Randy L. Vradenburg, Everything About Playing the Blues, 2002, Music Sales Distributed, , pg. 35 (). Boogie is a
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 0xbe941f26f76426e7b5df8ebbc5a7f96e03b6eb402f2aba96ccce850ff68cebb2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80dccd08-2196-42c4-bfe7-5a33a78595d2.json and https://artists.proofprofile.net/proofs/artist/80dccd08-2196-42c4-bfe7-5a33a78595d2.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 0x7f4dbae11e86860bcbfb4eef0ac12f55f5d244191025bd03a7181fa38ac4340b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTAS2231010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fcda701c775a4b1b8f1ac8d50b3b8aff9a1297ef329ab046794cad92d54a58. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:11:56Z), 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/QZTAS2231013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b0aa9613a4738b80db2835452c8fc765bfc866675353c65425abdbdf47104a. 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/QZTAS2231014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661350ec7dbadb23fae6c4a0d39368808ef511d124861759a1bd48be2e6ec902. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:11Z), 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/QZES92393438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bd96e2564ec270d9290d15059a3707d88dd0394f5977732ddb4fc693d38eef. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/QZHN62374381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ddbea8b411468ee586b00a71fe947099ab82ea2cbbaa4d35ba089936ef2dd0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN62374383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95448fbb4e3425bcfeb81b3e933051dd21e14a3c4a3d647775dbd9291dcb3e25. 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/QZK6N2370349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcaa8d18c7bcff4fdbe565833d6d7b4d514833705e32558f8e9032913133ff2. 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/FRR642302064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc8d8c847cf4bf21dc31be1748919bff3da067fb0411f8d09649799cd9edceb. 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/FR5R02315048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa28c9148ed1c25f1cc1e503b1778809f6e7d782cf3459bc8944d0dd09aceec7. 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/FR5R02315052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf576e8fe8ef86e59bf53af27b7df071f0e67b49f3a055cd4645a07b93fdb7e08. 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/FR5R02401259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b860aeec29df419c5af8f1f2af55b297062a1d1d8481700617e4c9561da82a. 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/FR5R02401260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a5c8bd42ca674607454b4955bc6c0c00b0b76137e6a88f49b63f8191d41852. 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/FR5R02401261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2a7c1dbb03fa2ae40b89a95e770c694a4231daa4871f0c2492b4930b473b4d. 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/FR5R02401262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcaa8d18c7bcff4fdbe565833d6d7b4d514833705e32558f8e9032913133ff2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRR642302064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ef0d967949b0ef363a9fc76ae3a6ae6ee9aeb2120ee0a8fcb5f87e286fdbaf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFZ62389931.