Three Times Dope was an American hip hop/rap group from Philadelphia, Pennsylvania consisting of EST (Robert Waller), Chuck Nice (Walter Griggs) and Woody Wood (Duerwood Beale). 3xD, as they were call
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 0xe1d1e7b4c5b5f1b90822206507e99c21050ad63ca8916a97a0731fc42ba27599. 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/e689901b-083b-477a-a24d-d08aeab7b72b.json and https://artists.proofprofile.net/proofs/artist/e689901b-083b-477a-a24d-d08aeab7b72b.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 0x8d4f18516a676dd41b118417211d7c66daba9cc2438e17e3785cdbd76ee34b39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAR19000232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5312c7033928133ab46cb93b2ad95e672fc0990851d07c3defaf145295bf1a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:54:21Z), 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/USAR19000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c534c7c92903ac03e5f48d350ea8792be66ebc8e900cd7e491dca3f26ad071. 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/USAR19000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9c3a2940a0469cf584fa22551fa9cbdb5f853089f6f8215698ac7c02e4b85e. 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/USAR19000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef84700d6b6b37c07edfe9bb6118559a3c82ee5dc5e7667956d3b2229e0b878. 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/USAR19000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d34d64d1394bbc33889a18e0284cb612b861a95b66bf40a797dab1ac7b5352. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAR19000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07af14bea5602ebb243d6586c1a741282ace8a917ff56e37dfee1bd48a02d87d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAR19000245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8564662c6a130be9955a21bc09ba67fde7687526e5eaa8d45551d7bcaa38f7bd. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USAR19000234.
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 0xc4a23f3ee185c98b9df11ddae42369cbd91e9dc3e9f4e474d8ab1ba59bbcaa0c. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USAR19000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980679a2a751b71d98e81eb0a76521422afa004fa0f828cf36e2a05603155b20. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USAR19000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc197c665b60646a3bdc3d0d2c3b17b2afdcd9492ce9bf6ba69c7d66e55509c2d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USAR19000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3d22deed2b8e55ebdc3afb23b4a85a9f9b1f61c8be89f30dcaa3f55a24d35. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USAR19000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fea918ef66e3e03ced9919b248d80797e6c11d5a4e849258e1f55bc5ed980be. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USAR19000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec87c6bacf1317a9df9cc5f76f0fa54b63371f99a4f089a821e1f7b68ac456c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USAR10300414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c45820ff52434fb56d618858e2e0d2d273a053a35136d5a86faa2c896b95ed. 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/USAR10300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ecbe18a3c34c88e63cd9f8b6cf88e4141b3be29044e0ccc1c48ced00e76aa8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAR10300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c15d18de9abcfe51e2285cc775593d6e69a79ceaefa33c014479fc3a5a6e83. 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/USAR10300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e32edf685f252b7d370f2accd63ef9fc8708920ff36931342ff001c364a3f3d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USAR10300422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce73e5d5af687f668f91f8d6428728c11e7b6fc1414fa51c9f5b2ca1c36fbf26. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USAR10300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc81528c53b4b3abf9dfcd252a777a379f88c71903027b2ba29ba50b1770ead7. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:48:23Z), 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/USAR10300420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4c0d06d746f9dbeb976d3844e010faa99bb2dd25c1912e1179499f057cb3b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USAR10300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89538e30c0ba18552e4e3baaeb32ac4fd27dc36517b0a0518e09f0e586a3e45. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USAR10300421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c97e4e0e8c6db9412fe4dc38894a6ea5832a397fd7cf76de45648d3af4073a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USAR10300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a605f87969ba40c094d86b3de5bf3a6d25b96d461b4df849160b6f19a53ac1d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAR12300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948e2ee6c7cc0a54574546f1b57653dbe889c0c16a655e3359c0eff151c0cb7a. 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/USAR12300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1df6616365eb5d06e49db6156c8db03b2207eee2f17c997e06670859c75fdb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAR12300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04ffa45131c1333237c7411e9c41910a8d44cd626e08eca4239f186240a1957. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/USAR12300028.
Greatest Man Alive - Prime Time Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2d5d790f9730806c04709f29f95beb09c522a2ceb3eb476cb9500f8354f489. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USAR12200659.