Mama's Pride is an American rock band formed in St. Louis, Missouri, in 1972. History After forming in 1972, the band quickly grew a strong following. They signed to Atco Records in 1974, a divis
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 0xba359b8099d10398c0d5633d1881e23c4e1afae820d02eb7bb6a68f38c31fd77. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe34f027-ce5a-4181-9ecc-fc74e1fe55a1.json and https://artists.proofprofile.net/proofs/artist/fe34f027-ce5a-4181-9ecc-fc74e1fe55a1.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 0x0a014e7441b42837357029738414f7f7f5a712a1b81b43359dd3f314ab1370e7. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:55:47Z), 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/USAT10800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb524af6588acd58ea5b11984d094069bece22773de2f34944f5aa63de4edc8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USAT10800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3331a26b8e9374d2a79382e48e5f6e062517a2da12b742d6c21a1dee65995b4. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USAT10800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b7e27d778bb322c01597be18821d4e9e1f676e34c0a4db5b5ccf31621afc88. 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/USAT10800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6b5891ad5009b5e27a1e4af15eaed35d25ca5084eddccc48ad0018a29d251c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USAT10800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd239cdb2bd80188b839804f81dfad097d5b68a3cd1ae82e7f8095496dc24dda. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USAT10800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809a9936cd62a30be90f64fe59a2f51debe2687e075361a0bfd9e5cef6346c5d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:56:51Z), 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/USAT10800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2764c638972cdde12a894e9715f38ac6ed499922d046488db0322790db8ac366. 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/USAT20613016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702507270c132564401de212bcef5a311d58d6fb317318deb4da2337d1a4f802. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USAT20613017.