J, or j, is the tenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its usual name in English is jay (prono
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 0x60c623829380c70db6f9ee5a0a0bc88e08fcaf5a7c322667b908d1779ccb9ad9. 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/ca8f6b27-65dc-4f83-8e89-ebb8e717ddc5.json and https://artists.proofprofile.net/proofs/artist/ca8f6b27-65dc-4f83-8e89-ebb8e717ddc5.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 0xb2cebeab1d9cde3940545431162661dcdbb0d89a38f5565d07f36bc4b0aaea89. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPMV09700970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da127965a342fbaf53acbcb1b388f9eba76b5130212064b71ea0a0242b31817. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:01:29Z), 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/JPMV09700980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe361e0a1c42279d34ea730b10980e54b19e226241f9978be4adbd338b931f2a2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPMV00205310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f82b754c9b917837b9de1106b151a17f76996be0c4035e83c5023fdd0c05ca9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPB600775701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33b62b315268ff725a80bd79c8e8e64de5275479ba189bd797793165cd43a3d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPB601502879.
J 20th Anniversary BEST ALBUM <1997-2017> W.U.M.F.
ACROSS THE NIGHT - 2017 Re-Recording Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4441910e885a736ec90f5a5189c6c7fda486fa0c4f2b3eadb802cc1ac54198a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:20Z), 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/JPB601700583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2a454b284cb1f49b58c95b0e0eeef55d13bd214044d6bcf20abe9d3444209. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPB601066803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68f9b226c49a6957c5d8cafdeac66894f4bb8d23f347ec4cde974cfa4c2f71c. 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/JPB601066802.
GO with the Devil (2017 New Vocal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e2aeb8cecbae6322c03a2f463241faa783cca03b5cadb45c4c6bf3c943a4c6. 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/JPB601801938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdbfac61807947090b14882e5509b8e4462972711e8d9c53aaf89aa04ef60b8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPB601902864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47e589d7d3ac58b69d0d79a1bce58d35d64cf51183e567bc00b46ef13c536eb. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:52:17Z), 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/JPB602103380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e054c160324e7b9554fcfa6839ee4532167e4c2728aac37a2b5fbc667cc637. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/JPB602103382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6744ec6b88a849ea1698c4c0f7ad47c7fa95503bd05848581d1dbafc2a81f65d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:22:15Z), 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/JPB602002362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439e6de4ad9bf74b1969ba872edf3610b65f17b359371b24c5bd516b12efce0c. 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/JPB602500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64164b21ac59bf8172a6f625fdea57b168b6a08126cbe50463b75d35b69141c2. 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/JPB602500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b834eacfb88e6c2512e135b2fed19a1943b61c4684393fc61edbe8a3376fcb8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:09Z), 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/JPB602500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6720d9af152b39836d2823d03c2b64a2f91aeca78cd2e4035ec876724de0bbf. 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/JPB602500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb03dac6f4e80e393850e13c67a4a7bfc2c8f31b69d840faf0137d64a9f1fc6e. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:42:51Z), 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/JPB602500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354fddee86205b72198043ecd5280ae4ef23ae163fb6d14f2b99adfb3014556c. 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/JPB602500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0663f2e1c41bc7580bf0aadbe6e307fd37dc94e4f60c94809012fdea8a963004. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPB602500096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115e6f21e106330baf47a11493a3e6bfcef1b39b493b6cae3474071c6a4ce9a7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPB602500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cddea037f5ce95f6e3bbeb411ede10986c109ae32e774cf8d2e3adc2b7e1b4. 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/JPB602500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef61b9f489c0407a27592ff66b5a8755b7ec468d253afb34bb608cf8908838cb. 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/JPB602500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa25ded01348aaa073e53ab76b4852f815d61270de72023201c36228f8676a32. 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/JPKI01712509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c7ce836d1ef09e63ebae053e4f2b8f8e17114fa41373a0fae64f1554917d5e. 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/JPB602100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574a604eb9e7344beab879ca60d7e57c7200c2f4c9015a14dabf29c9dfa437bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB602100340.