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 0x54c73eff268cb3318e4168599d0875c51e8ffda5d744ddcf3b3fd1283d54f332. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b98480a6-10de-4755-8414-9edcdd5d395a.json and https://artists.proofprofile.net/proofs/artist/b98480a6-10de-4755-8414-9edcdd5d395a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Belle Epoque Nº 22 - EPs Collectors, "Oldtimers'"
Crazy Otto à toute vapeur: Piano massacre (Mono version)
Vintage Belle Epoque No. 42 - EP: Crazy Otto and His Crazy Piano
Vintage Belle Epoque Nº 28 - EPs Collectors, "Crazy Otto's Piano Massacre"
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 0xc4fb869c80ada48189f4f171288934d455293cda6a34ecd63afb28c36112b2f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBLGL0826684.
Honky Tonk Songs and Medleys from Crazy Otto and His Tipsy Piano
Glad Rag Doll: More Honky Tonk From Crazy Blotto Otto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dddfb395ed6fe6760d89ac21aa85e0fb50561f2512c443ae8d9e98fe3a8b5a9. 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/CA5KR1928476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6373c8216c5c4670e726b784ee646271af90374992ec3585c23f5a042c142d0a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/CA5KR1928479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa624e685e39ca87210493bc0d223f7470aab21552c753877549fa03e8c3c5119. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CA5KR1928483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8cfb0ce57c701103ec18495e5acc00c823d727cadf80a20ec778fa92512198. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CA5KR1928492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5982df2e9885242d88f41a3d621bcc1bc3c14b77f14f22c702d9396d17da2682. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/AUXN22148356.