David Aaron Shayman (September 21, 1980 – January 23, 2007), better known by his stage name Disco D, was an American record producer and composer. He started as a teenage DJ in Ann Arbor, Michigan, w
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 0xdccc8fc8fc0115f9e379317a473dba290ce848537022bdb2cf586d0daed808fd. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a019a48d-2b7e-490a-84bf-a41966e9f9b2.json and https://artists.proofprofile.net/proofs/artist/a019a48d-2b7e-490a-84bf-a41966e9f9b2.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 0x8fbf97f434f812b16afd4bd5da54e3e8bde072418a2f7472931d20860f3821df. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTB10200931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26d956a9361f259df2adff4061d5d6e09405c6c8d4aa8312a649ea98091acc5. 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/USTB10200932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e1d1338eebcd09d7756fe54fe4f4640ed41728cf72c6300950011b67152f62. 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/USTB10200933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59174c4d5f83f3d50fda929cc38835dfcc3dc9477124f1ee9bf0b1e307816ee3. 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/USTB10200935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08f84df844864163301d4b50ea456ec2fcfc6527f953dcd0f261f26b608afa0. 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/USTB10200936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9661fd4ef49e41d406d59f6375cb0ff6b559076750be6995cce3d83038e4a1. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/USTB10200937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815b0c10eba7245e92b8b25a95110955070bf51fc4d4d266538dc65f58f2d3ed. 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/USTB10200938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5657c91d7fab4e36d6a87282e25a34b90faa1a7547709b57c05ca400336a9f1f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USTB10200939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41554501c5577d4283840ce205c641baa91b535c8266099a4a091c02ae17a07. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USTB10200940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451b9ed76582e36ebbd8e9f86084ebafa848b5dab867c2e5305cdd4369bf27d8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTB10200941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce11298fe3eaab36c9fc01139f5d87889c6ba2e82aeb7286e219a134eab6aee8. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USTB10200942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb86e17920f77080759f060266bab1ccfd14ae7e34c70cec39aff43ccdd5a21. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USTB10200943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919a2e0d50c842a2d6e73cadfb4bc5041960775f0de5c7c35708fc32beb65271. 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/USTB10200944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34a02bf1701414b4da5c13d5a5f6ee27b55364ec7197bf5379e4e3b3f87df86. 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/USTB10200945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a627f07016f0d0d661e19b84779a1d00f0c5a765120ca1234c4c3a94f6b41df. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTB10200946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961d53b10ed15d46fd09ce3321601fe69451defc662dce28ddf468847c53dc79. 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/USTB10200947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b75e5466c996cc9cf5b1df0a9addef0038410a4b29f31fef9c7004510d7335. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USTB10200948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23be3aaeb0f3d8739cb44af276f2222a2593fddc3a87c71292130fc1c0a9bf64. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USTB10200949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cbb4be163ef77b7fa68cbca9c4c9399f12700db749e5de926dc182d6e5f3c8. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USTB10200950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3692c0a043f669a0afb7e6010183d88d705aa48c1917ef7adaeb6d6a12021632. 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/USTB10200951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ac9c45c71a5d235829cb624c4cc220d219c38485f92a2d18b412bd0e0a62da. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USTB10200952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a3d5c269f3773a19c7eb19ec07fe91fea01d753f772abe67e411b1bb38e5db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USTB10200953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9a59de92e61be8d34f638921fe1158866eadcfaf8ca0ff45a724f87b9c28b4. 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/USTB10200954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab173e53c4b0823d394d476b60960d87b995b9221061ce7abb7fcf6e3c87d18. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USTB10200955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d4ea90fc33d2cd0067857982f3da34fe884e4cc884f6fd270b1d5ca5478437. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USTB10200957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefe923f0a72dbc43119914c050578c808aae2343dde3d97b8148b5ba8a17d71. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USTB10200958.
Keys To The Whip - Straight Pimpin' Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb878beb51ff1cf0a2428795338bcf23f0acc8e88fc0565704f05688f0bf1a165. 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/USTB10200959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bd8d0e69f0f4c7dc411a36954951a7b3c18a9656d513c21fd83f56c1cb0c0a. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USGUM1300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51f9141c2ab7f93d853d5345f83595f306b9f98b1e4b443e01142d48614fc6b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USGUM1300235.