Eyedea & Abilities (often abbreviated as E&A) was an American hip-hop duo from Saint Paul, Minnesota, consisting of rapper Eyedea and DJ Abilities.[ Allmusic history] The duo was founded in 1999 and b
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 0x928ac2e26695dd51e48dbd193b8a06c50f39fda9679e4f2b34bd819deda4a09f. 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/93965931-8efd-49d4-b6cf-dd0469f16669.json and https://artists.proofprofile.net/proofs/artist/93965931-8efd-49d4-b6cf-dd0469f16669.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 0x821aaa894cdfb30e2da18aa3ebe603f3bbee8bc726a45df5eea9fc00b34b1cc1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USBWK0500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba66b656f1585d51429e78fafad739e266b1bff10d259d737563cc4f2321977a. 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/USBWK0500384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18aa6a8bde99f739f5fb30392e79d8ede3f37041aaeef8ec8c9f56e74f1b64b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USBWK0500385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff2c360c2d44de0f4ace6e6bf5335e4d4f3f6bc0451446bbf7ebb9f0b7a149f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USBWK0500386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6169d74979bcebab7c5e59d2b4c344519bca6ce0da151e4efa0f6f03392527. 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/USBWK0500387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786cfd013fa2c372c3532cc38e276a4790eb4ad4ac50bb5aa2a18296dd76fedd. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USBWK0500388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe35600b23eae63513e6dc08f062a2885200378b8c74fcd58637c35fba9cf2bd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USBWK0500389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ad7056fcd4d00b35fd3ebb133992b58503071a9be42aaa480ee7699cc11ea. 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/USBWK0500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ead662c7afd66bfa445e0ba3b2e5455f4e7e71d3cec977f54a55e4f85dc976. 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/USBWK0500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e11b8fee8453a88826b37bdc4925e689c67f5df0e0f0b5a7f6e1a82cdfc8711. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USBWK0500394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe31837be6491358b83b37be572714b046d33890f6de2b7bec2b8b24c8aff3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USBWK0500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e1bcabf3d3328f30940cfc658d5ed9dc79c17ae933a74e7e501ac906f0a022. 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/USBWK0500396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec850b84b0f027ceb625248f54c91999b55f8aea016277fc1597a36e7cddfdd. 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/USBWK0500397.
Before And After (feat. Blueprint) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c57007f946e47ca2e2197f37953755e1bf678d25145945c1ab19b5d677b385. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USBWK0500398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99774e66d2f9fb8bcc4bf53b10c252993c42d6539026e54a05bae2af7620e8c2. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USBWK1100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41367be829f3f5ddd7b2257dab9b2ee6e1eb686e2b515b6a66f245a731dae16a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USBWK1100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71129e672dcc2df73306c7497ae672291e1ba664bfb4b4c69db689fc8659041. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USBWK1100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655452c15871f837378b1770f873a5831180eb4d5090d45a0c530dd3ce71263c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USBWK1100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b2e607641ac74aa8999c5da0ce829704166048c085c4b06994d08c8cf3f8e. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USBWK1100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908edf98def8df91a749b296ccc181a7cc1760e25e3de8e43aa5a2c6c9ac8d4e. 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/USBWK0700524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06caa7736e18fca661bfb60cb6fe7effd4074fdc84a315028a15be012f443de6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USBWK0700528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa6cbdefdfc4d447264735b2f1e393bbb8fea8fcd9536bb1cd755a9945b1aa0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USBWK0700530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff660516ccc1c13d040585502a8a442fd71122e3a4580eb439adc4f6cc5c6b4c. 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/USHM81620966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e57bff594e3c0f9d76403b24abd90a087d4b79b09497b818f9f40c4e3a0e9c8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USHM81620968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aebf2af8c83f58016d42d3e18404071d4d00cd5b8124609f9ebb02e705f72c4. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM81620977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cbffaf0535c42b13f48e9c8b82f54d9353b5ad8523f0c37fca492697b6ed8a. 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/USEP40384102.
RSE20: 20 Years of Rhymesayers Entertainment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef70311f1e1b571d7b8773c6d65716e2622b93b75ab2d4d7d83a5fb9492c0f83. 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/USBWK1500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01ca9e4d191da840f0cbd87be242ce7c780ed9a6c7ebc189dd43c228c23818a. 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/USBWK0500390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703b7201f32b1bda5b74fec24d7f29dffd360e0b60730cbac87534c9a0683399. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USBWK1100169.