Cassie is a feminine given name and a short form of various other given names Cassandra, Cassandro, and Cassidy mostly used in English-speaking countries. It is more rarely a surname. People and ficti
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 0xbee0b294b482bd35000167c276ca75d4f237a5be1448278b3d53ef804da82e22. 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/2206b8ff-7833-4a52-a461-6b0cdc2c1090.json and https://artists.proofprofile.net/proofs/artist/2206b8ff-7833-4a52-a461-6b0cdc2c1090.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 0x443ab5f70a83c1e5d82d4f144b9a29e523f6927452e8cb3def530cb671d96e03. 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/USBB40610361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46be6230c4dcd4c4fda43f9adc462049cfc477f71ea28a60bf4c7cd9905e52ff. 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/USBB40610297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0c03bda722ddc29b138d47a5a4fff495d30369ef35ff69064d01448dbc866. 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/USBB40610312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d55abc315aa3b5011e8ae48df376a8e6c5439e0ff90cda4edab80e9506943. 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/USBB40610330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b0fe6d98cc62996fa35176380ff26079f7ae43f96f12bcd2c1d94ceafef3b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40610323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5bc01f3be0032a6693411397af82c64f8262d37a29699ef22ad2cb00d98529. 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/USBB40610329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea000c48099ba2a15e5bfee8b8bcc7221d30e64361b036e0a44c3f99a96175f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBB40610328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245b44d1494104fd992cc30df9c13a8f024f96be09d2e175a37ed525a0688854. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBB40610333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2fbb2aca03a076b9fd4bb9d87a3263d0233eb67506fc6474a3f7d820545135. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBB40610327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c5e763ee6bbd2d9fc20e60a5218dc4c8cb6034609ba83714d7e8675761085. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40610334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559b2a5406d3bf99214f6ee27804137d09c8ff7e23474abfd634650d7f41929. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBB40610332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575c0e4fabdfd879e680904d972da1a8b2d72c3cd67878ef615a662790282e63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZES82135780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd051f85b73d45637e0c5810b34909002231c64b316a2f85d6cd8a886392ec187. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91720629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e330b49061bfd9ecb29320b0526de578294366d039171ec8b50a2508a0cebe1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USLD91720297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c55d4775d2b9a3066e18cdc478f35cfffcaaf442b78944fb22075c86f4d9188. 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/USLD91719823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ec62f78a05a03ec3017a3a887bac534e184630682c980ce9f83b4aa4a4ec0a. 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/USLD91719822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa956112cdee1daab93a73b478f07e3f5ededf6951e77cb38aee3293173cf215b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91720026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe995bedf79b41ca742776820845a3985a5d522113c7b3140b78c8fe4d929d2e8. 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/USLD91719821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eee33f6ad66edde63ff28c6d530c6f269ecc8e63e0097dc148e973dd8d2c3a. 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/USLD91719820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c1dba700d8e3977898c54b92c317e401e5d10023213178fae5d454195c6a77. 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/USUYG1173558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df085be1752faa17782060d2360965340997fd1daf8fb114b9fbd449b2310fe. 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/USSM11706878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97788bb98ee54de728dda31155369f2a2271776c9c9357820918e6e478a0c8ba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCM51200686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f673e69ec6b4db9ba8caa68265955d997dfbd7a4a71623b1427e94a4e80d29c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM71120035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121dc7c9da36630283db37d8a9711009d9394e615b39639a177b556549ac206a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c39f4737be78b5f03a8ea40495ef39b5475e06d92552d2cb1e0144849c87f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20900695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e5f2f0e921cfc8304f1b4e0d6a0e8682a2747bd43bf9f8691c03a107da7eb6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40801902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e7a5ff8717eaa51097ee49923e78f6ea6e0e5e581fe50238033541349a950e. 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/USBB40707071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46be6230c4dcd4c4fda43f9adc462049cfc477f71ea28a60bf4c7cd9905e52ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40610297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3818395387ecbf0b1fcfab0a4528370679bad3300903daf4da7005666f1cf692. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBB40610387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec2d1b824dd5aef8023f05ae671ea12434201132f31f8a30a61ebccb3e8ba85. 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/USBB40610601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff50d5b5442188a35fc19cdc50764c8f872a604ec40d85ad61ee36539be7859. 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/USBB40610326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43dcfdbdcfb027a0d8cb0710be02b190c2c93c1c235cfa7a65a4a5fbdc01b8a. 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/USAT20611268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12bfce32c042fa8f866217a03ce7d1738dd2444738976aaa4e881feff3b23ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20611269.
Me & U (Remix) [feat. P. Diddy & Yung Joc]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0d55fa57e25a819a50948916cf855c0dbc8e3ebb57f0cc9b1493f529d48a16. 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/USAT20618192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a6bb394de876b5532894f15b6b83a423900c6ced14979a5b353dc8a0972930. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT20611270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97788bb98ee54de728dda31155369f2a2271776c9c9357820918e6e478a0c8ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCM51200686.
Bad Boy 20th Anniversary Box Set Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db1313348a761815992666728667d57ade14025d7e02755aa62a72dcfd0bc5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRH11603402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46be6230c4dcd4c4fda43f9adc462049cfc477f71ea28a60bf4c7cd9905e52ff. 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/USBB40610297.