Josiah Alexander Sila (born 25 June 2003), known professionally as Joey Alexander, is an Indonesian jazz pianist. He became the first Indonesian musician ever to be nominated at the Grammy Awards and
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 0x54a5b54aace43388bb94d30407e21600e1b96c5f840926af6afd51514a82e48e. 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/6202ee76-6d48-406d-bce4-c57378f1dfc2.json and https://artists.proofprofile.net/proofs/artist/6202ee76-6d48-406d-bce4-c57378f1dfc2.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 0xaac06746f8368135e39598eadd63bb487e1b8e6cdda3dabe83bc85c4cde82c2b. 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/US9331517101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b1dd19882db4f49058f97c035aa6be09d73d41aa6172c4e800c4e311e5cb32. 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/US9331517103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a1315757f52ee06cfdd7d93fc74678fa1898deed4134ec8ca29bd065a183f3. 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/US9331517109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac06746f8368135e39598eadd63bb487e1b8e6cdda3dabe83bc85c4cde82c2b. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/US9331517101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b1dd19882db4f49058f97c035aa6be09d73d41aa6172c4e800c4e311e5cb32. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/US9331517103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e333933acd98a461066b9682b56c7e8cd2d2f1b2e564376cd724d52e2009c8. 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/US9331620201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fef0b9efdb50dff85dc460b246f0c49ef685f533ca7a1a2f29906b6fb74760. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/US9331620203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16104ef604b2c94cab58d9e6a518389b5cec55c9b01d672b95a7530fb574c6d4. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/US9331620204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df19a94eed60ad25c640a6c269ba0f70b82acee4f2b15eede7303d35c7938c8. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/US9331620202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f511a7ef484227fe05a3284b294c6f72395b8eaa5d60684c7c7ec92c6d27859. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US9331620208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824e1cfd53ade04d68a27d8b6f04e1d39e784003d440d0d6acb8d39f66243d9a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US9331827101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf131d720270eba163d63b0ea25b14cae4fee5231b92f4d36c099b7a656e11db. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/US9331827105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd540a870f66d20eab70db7905aa1afef35c9bdfb98f128dac82d7b6ccbc43ca9. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/US9331827111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824e1cfd53ade04d68a27d8b6f04e1d39e784003d440d0d6acb8d39f66243d9a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US9331827101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd540a870f66d20eab70db7905aa1afef35c9bdfb98f128dac82d7b6ccbc43ca9. 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/US9331827111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf131d720270eba163d63b0ea25b14cae4fee5231b92f4d36c099b7a656e11db. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/US9331827105.
Legion of Peace: Songs Inspired by Laureates
What a Wonderful World (2016 Countdown Sessions Bonus)
In a Sentimental Mood (Bonus Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a936aa3e24f2cece2cee19d52f39906e1f716828e0e54f6136d07ab7add26b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USUM71922209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1f1ee416bd3e02da8ee5c15eeb384522e56e95278653132b266dfe4f5d0560. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USUM71922210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa18e39b4b16929ba08818653f2722c4a0da0a261caf34686e194254932ec6c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USUM71922212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c83ee6091503d559fc6397a358681fb491de17a06170bce439e1c1763dc09. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USUM71922213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb809ce486a3f76b7af0d99aa7be28ba70de95c76ad33c051066842c3c7e1fde8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USUM71922218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7f7639c0120d63f923ca854bcf2ae1687af232543f1ac7bbdae904f40afb09. 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/USUM71922222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95da3f0252245d8745c2582c51e500b5b750d374e3d62c70aee7e1c3e9c059ae. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUM72105191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14a1a0ec604a2c581521e954304fc4a55dbb284571b48f50c8c9bdc49920824. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USUM72107013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffbb5a10a2fb7daf6adfb64b055faf1e6a0d62c57c0398f3b41cf5e6f465acc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USMAR2219801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122fc37849ec9879b1bdbaff1ec932d6ec65a32c95c33786002cd8afd8b05e11. 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/USMAR2219804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f30a377b5bacecc4b44637db4a7f486a99b7256dc6f44f2925d4b5e4b49e333. 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/USMAR2219808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851eab68b7a8d6a432d48dd702c527bb5ab8f5be3ef26687dc4fc91812a42519. 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/USMAR2320802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586255ac0a290436e415f447c14c2336f092c2f7ab5eec0c1eccb93d5a38745f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USMAR2320803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa3fa38130c4d2785281d87282189a465613c0464f1ca4d193dd35ca875b711. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USMAR2320805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a60509a2fcc66f2df071abf3d099a506518be115682512d5ac0596638033648. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/USMAR2320806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf291ed260f3793bd68e23aefce79cdf2a94b4e1372d4fdb4da2292f632ee569b. 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/USMAR2320807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7f7639c0120d63f923ca854bcf2ae1687af232543f1ac7bbdae904f40afb09. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USUM71922222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5ed6e3b4175dbfcaa32e1388f468abc4999be0f53bfe3cb57a44aad268bd44. 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/QM4TW2450196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4668cee41b791131672bd3c443b40672879021fa15eb483c810508097ed82bb3. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/IDA142102091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c239b8e79e7d39fad16dabfad4ae08a13b5d14bf35577de0cfa3ee426785fbc. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/IDA142102092.