The Marvelettes were an American girl group formed in Inkster, Michigan in 1960, consisting of schoolmates Gladys Horton, Katherine Anderson, Georgeanna Tillman, Juanita Cowart (now Cowart Motley), an
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 0x24314fa48c283bf9b8f9c2c690681ed1f042fa294a350a923111fd1990074a1e. 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/6fc3d9f9-07d5-40cd-96fb-0231e98a3ca1.json and https://artists.proofprofile.net/proofs/artist/6fc3d9f9-07d5-40cd-96fb-0231e98a3ca1.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 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 0x4058e3054d3e42213adfc1f54afe0d7a0949bec7bd7900d32f78df784ada12c6. 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/USUM70953425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39e727a403ede3a464f4012b5cd59ac8d3d85649ae47943f2d648f0afdd0c6a. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USUM70954072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bf765ab629aa0e048ad4d669e9f460a7ab0c9aee87d1af712cd2ec5632cec2. 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/USUM70954073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19669f21fb41ec00ee1e3a76cfbca107a1b9ccdb0ea320669c26c17c1d624fb. 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/USUM70954051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890cfa9ff27dd609f21cea9f07f59618c56f98de26342ff847f4cd84d0fc10ac. 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/USUM70954074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad9104a6dc89d1d0f3626383970e86adf70532c1f1b0f21e3c0edd09bd4c844. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USMO10500487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298975a15567d0feb0849b7ce3907d9c131240a9b2849c66a5a7a4c812cb1033. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USMO10110203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7697aa3454f347b0fc4f0bba559f546b9f7815f424cc30e014befc729c5ea9e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USUM70954045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5278e689adea0ce56f047530493098a38c3e4255a3e6c9743def1a78fd1e356b. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USUM70953449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54d61bc10834f226820531d1ac38496d6566a4fb20211535f274ad273c020a8. 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/USUM70954070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104dcc4b58594eb1803650efec267a886a723bd92715ebbc42e5af5df6517ed9. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USMO16283288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa496b10f93f7b3f4fabf359f8d0b9f26bc27eabd3c64f973944cc9885715dce5. 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/USMO16300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8ddc6d23240443200b00ebf1e83540ac8a2cd3c902fad530cf2fdbd4ad3d54. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUM71117929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf746b8318b95248877a0492419b99662aebed83d9e15301d0c57aca631b7103. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USUM71117948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb80b573d89081b1ccfcea0e698687da2cb059e2839a50ff54f688a728db9e65. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/USMO16600353.
Please Mr. Postman - Single Version / Mono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. 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/USMO16100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c4234c7be03b689d1c257df43f7529192337879ec0cdaf51451bc447dbfc30. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/USMO16270001.
As Long As I Know He's Mine - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5fde87bf945ee00aad91c81f35326145bfa0363c4cd05ad519c7c794d6586d. 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/USMO16300278.
Motown Legends: Beechwood 4-5789 - Playboy
The Ultimate Collection: The Marvelettes
20th Century Masters: The Millennium Collection: Best Of The Marvelettes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USMO16100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c4234c7be03b689d1c257df43f7529192337879ec0cdaf51451bc447dbfc30. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/USMO16270001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacad1f4220e8cad361f571d61440f5d13c8b9b68cc385328ec7958d8aa87b92c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USUM70833506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed59dddbd28c8188614270215ad890641b2807806b830302c6b52261886c70a6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USMO16200505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac37feec36015e927c5436035657873c9d54a244508525e60ff432fb0366b43. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USMO16500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42788ac6d6346152670b2df81aa2dda7e1a293664e0ce261c1569e03df7207ab. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USUM70736248.
Forever: The Complete Motown Albums, Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beec0044756ea3f830b07e6e2854dc90cc87eb9ced3d602c8afdccf9ff107c4. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USUM70953435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USMO16100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139879d41f4391c8ca900ed85bcd0b16c888bd6699483e55cdbfd48a9da8d413. 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/USUM70953448.
Forever More: The Complete Motown Albums Vol. 2
You Ain't Livin' Till You're Lovin' - Stereo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebfd27a7828c4dcea128962969fbe9de3ffb6548f60ae5804d709eb9f1b5369. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USMO10401001.
Please Mr. Postman (32 Original Tracks, Remastered)
The Marvelettes Sing (Classic Album - Gold Edition)
Please Mr Postman: The Best of the Marvelettes
Please Mr. Postman (Music for Every Mood)
Milestones of Rhythm & Blues: Motor Town Soul, Vol. 8
Milestones of Rhythm & Blues: Motor Town Soul, Vol. 4
The Complete Motown Singles - Vol. 8: 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd722f6a0164b765e466e879b8bb60316d4bb0cf9802bae2dc0b587abf41951b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMO16800460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMO16100266.
When You're Young And In Love - Single Version
SoulBoy - Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b708c844e9e1799fb31dff301775535951fdc6c18acc67558189c9ad517d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMO16700457.
Hitsville USA - The Motown Singles Collection 1959-1971
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. 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/USMO16100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67c65a0265bf31af07943b634d24f3d8e54452747b730b900e9c0a940449e7e. 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/USMO16200260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cc9c35662560bf79d9a2c1de6907a4151c6022004d23916062bebd143af95f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USMO16500352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7cf1755a769139636f35114ab123d3548ce4ca75714137c1104f9c427d4c85. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMO10201033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347e697658e14aa33189a8a15448ac9e318bb9cf7094daff0512b76a3d1ea072. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USMO16400289.
The Complete Motown Singles, Vol. 5: 1965
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac37feec36015e927c5436035657873c9d54a244508525e60ff432fb0366b43. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USMO16500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4317cb64ef39f484e1977e58225099f06d713c78bbfbcc879381cf1fde7f165. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUM70604879.
Hitsville: The Making Of Motown (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8619d5ca3cc3841cfe7845dba3e13e44b71231a994ab97644f88b2c1b4a47d8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USMO16100266.