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 0x2cd26795393856f6c003198de66337177dfe2c7bc9546153578e99011117c05a. 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/f371ab76-4674-409c-abf6-0262c249d749.json and https://artists.proofprofile.net/proofs/artist/f371ab76-4674-409c-abf6-0262c249d749.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
California Dreaming - Originally Released by The Mama's & The Papa's
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 0xff34232b2a5c1c7bda0c8c4774d233bf0e1feb3320ce1e95b4dcf56450f97bcc. 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/CAM460418082.
The Music Makers Led by Kayode Fashola, Vol.2
The Music Makers led by Kayode Fashola, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f23f4deee5386b53424656578462c206d99db558e212411d382f4853545041. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/MXF550904617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d04f53d5436aa1d36c6807592718d06a0e749fd43f6f26a1e001edafa557f. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/MXF550811148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a172164c2e03410a960c05586209790105e890ac7d0a2b7d680360e7a4ce1c5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXF550906741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43716d16986ca10732a422161d5e739c82233a6771d00da64a23bf5b231fe8e7. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/MXF551051129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0602c1155dd26a9d80a789bd349fb3d47b2fce4a1e06eaf0beaf73aa1fbbbf51. 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/MXF550904055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85211da540c0d193917e8649ddf4e8e4ff006f1f2887e1afd2d3241dadab9ce. 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/MXF551050565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaff5fa001c326636833197fcbc56939c022ff6be6d8e79896f7fa5b9c68e462. 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/MXF550905330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25a9984a9237426352de947782dd9f812e5c8ebc03a1f59f34e1559a3a6d19f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/MXF550906735.
The Best Collection 60's 70's & 80's, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572c6d275f1358cde770c36ce39dda0dab5cd6687ab1f6a3e3591d4266a3a99a. Chain 2 (Bitcoin): anchored in block 957655 (2026-07-12T04:42:44Z), 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/MXF550907095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3797ec39ad6b53b0cd9ce41835b05d0725388542f93963b309aa6347d0dc26cb. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/MXF550905019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc380c0f51882186f980596b2e7efd5132251e76c1f87aabb7f247636424e1503. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/MXF550809563.
Super Hits - Yes!!… The Best Of The Best
Super Hits Yes!!... The Best Of The Best, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817dc99359292d33994df1a2dadc91a82c26d92d915f85493a211d063aed0729. 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/MXF551266341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8832db01b022f177c28f6f88f2ca0f82a39f8d1d95dfa9eea58fa6032f16fa71. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/MXF551051116.
Los No. 1 de los 70's - Regresando el Tiempo - 20 Éxitos, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290b01383bee68ec92e1f1969bb2f95534bb81d84772b83501723108761d7ec4. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/MXF551051407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b01d876a227d468917570f367e4cdf39274c175a0550cbfdc8df49ad332cbc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/MXF551051150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d78fca8a79859e9eb64637bf09f74f9e7b6e9d3541ebeab6f563e25f8331319. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/MXF551258328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa566742250f71517574d3ff473508a6a5381c96f519d7e7109c0410d26f17e30. 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/MXF551266343.
Los No. 1 de los 70's - Regresando el Tiempo - 20 Éxitos Vol. 1
Ultra Hits - The Very Best Collection - 60's To 65's
Ultra Hits - The Very Best Collection - 95's To 2000
Ultra Hits - The Very Best Collection - 90's To 95's
Ultra Hits - The Very Best Collection - 75's To 80's
Ultra Hits - The Very Best Collection - 85's To 90's
Ultra Hits - The Very Best Collection - 50's To 55's
Ultra Hits - The Very Best Collection - 65's To 70's
Ultra Hits - The Very Best Collection - 80's To 85's
Ultra Hits - The Very Best Collection - 70's To 75's
Ultra Hits - The Very Best Collection - 55's To 60's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55b0caed36dc106335b90f3e3fe9d09abab93c6142fbff662e9fbd2b28f2ba. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MXF551051401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa8bb7a31da041da3a5d65f23357b32b6122e809c10bdd35b4b8c62ecdc73f0. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/MXF550904005.
El Cielo Está Perdiendo un Ángel (Heaven Must Be Missing An Angel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a71cf6d31daccb47529a1d5c13237276e0b40ea9bb0c4b29e5481fa7c281dd. 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/MXF550806101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957c33f17eafb9d033dcf2c7726301680b9f77787984dd3bf9b2e01fca027eac. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/MXF550806104.
Antro's Dance 20 Platinum Hits Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634a041629c707d4a90b9d6c618eaecb177efa4fc44ee93f231812409bea910b. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/MXF550903531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca7ac78ef4201b4100e25fec21d92941e55e4ad3777915e1e8001afdccb5a66. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/MXF552013655.
Since You've Been Gone (Sweet, Sweet Baby)
I Could Never Love Another (After Loving You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d496815d108eae5910d5c3adc681f2bc55f6a6addff98141c62f3f08c16b008. 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/MXF552011660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed218ba48fc8fac3f9c4db6947b663cfdcf00bc6bb182a49a7be9cc8b6679cfa. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/MXF550902688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1589fdefec4f20d3f7002bfc7d78e0d40764eae9ccbdf00dbdf3602e0b0287. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEBL61126657.