Whodini is an American hip-hop group that was formed in 1982. The Brooklyn, New York–based trio consisted of vocalist and main lyricist Jalil Hutchins; co-vocalist John Fletcher, a.k.a. Ecstasy (who 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 0xdb871a43a7f5a7f5d84881280ccfabc850e218859bc3ea663b9214949c758d3d. 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/53297b32-320b-421f-bfbb-387f9b4d63e2.json and https://artists.proofprofile.net/proofs/artist/53297b32-320b-421f-bfbb-387f9b4d63e2.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 0x9aa90fd4f8f6e42513f07faa348c473b64ce5abdf6d268fb41f615753d433b1a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBAHK0300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb6e090a2aadf546c008ac7bbdb06ebbcd0eaf0ac339048f8d1e2fab6cb8af. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBAHK9900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046f25a97b1906c5a9b5f0debddc71b15da265d4d12ce15819132a7d026cc160. 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/GBAHK0300271.
Last Night (I Had a Long Talk With Myself)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e5c45987d7f7ba422d45075e20825ab9ab9c95800b3aa88942f18381cc6636. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:42:51Z), 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/GBAHK0300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b03908c7989c923731c5f6ca5e564eecd731654182800c33b42881abf7f70df. 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/GBAHK0300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70c01de3a0638111236418d76613518d0a4c3cf0b2e84a792aec2e25f3948ea. 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/GBAHK0300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c71a9ef0e9d6c5e517fc94e0a87db6b9af4d16f48cc8d1e74804dcaf530ffb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBAHK9900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74adb2bf0838744fc7c8a181a1b5de902de618af37aebf07e7f0c72c897b5aec. 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/GBAHK9900168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10262428f2c37d2578dc9fb53b39ed0d7ff6f0e7e3e3b9eecd94910c66af191f. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:44Z), 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/GBAHK9900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e22496c754eee49426b4196dc457baeb9cc414d3958a006bddaabb259b6c5d6. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBAHK9400184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d0c99d4c8077deea0e9584984aeb8b81537d978c0ca86c31893ab5c5acfd49. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:16:11Z), 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/USSM19601950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fc068ed8bc7b51984805d7dff0f6144484288d1f69f51907d0a60ef59b5d71. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USSM19601956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02238066ca153722e4816f5fceda04c5c36f548351cd2033463d1ebb6dd2b45c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBAHK9900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a7a409e878bd658b3d914724caffd2867fbfd2e24bc6aeaac66213e857ccd. 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/GBAHK9900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb584ff6488dcba61580b8359c883423f06465d85e82eaf2f7286850696ffa. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:44Z), 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/GBAHK9900181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c71a9ef0e9d6c5e517fc94e0a87db6b9af4d16f48cc8d1e74804dcaf530ffb. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:04:25Z), 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/GBAHK9900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74adb2bf0838744fc7c8a181a1b5de902de618af37aebf07e7f0c72c897b5aec. 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/GBAHK9900168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a7a409e878bd658b3d914724caffd2867fbfd2e24bc6aeaac66213e857ccd. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/GBAHK9900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd1e3d62ae09d3be523c3f1318d9467a9a1a9feaf3c4841486931027d3a563b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBAHK0900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02238066ca153722e4816f5fceda04c5c36f548351cd2033463d1ebb6dd2b45c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBAHK9900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b713814e64d3ebf08791e3bbf47868a7b0867554957f9980f90ebfa3381c81. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBAHK0300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dcebc2051b5cb439826a2035dff6ebb943c577777ef00ea107b095b2a3cf56. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBAHK0900049.
The Haunted House of Rock - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59e069b6e0c38963f8cb3c4bbb62a1abfc9bdd8831c65457992b9568baca5ed. 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/GBAHK0900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc7175094e0fff4adc3b2ec29aa2e3b59711733cd2366464e0df689e496fada. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GBAHK0900057.