Asad Khan () may refer to: Asad Khan (cricketer) (born 1997), Afghan cricketer Asad Khan (sitarist) (born 1982), Indian sitarist and music composer Asad Khan (Bijapuri noble) (died 1549), minister
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 0x5b9ea052b0562f780da4a474915858f31f63f66283c45561c20c43ae6015ff4e. 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/a747c9d0-e896-4aa0-bff1-c6cb2be57226.json and https://artists.proofprofile.net/proofs/artist/a747c9d0-e896-4aa0-bff1-c6cb2be57226.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 0x60061b5c9c8ac775650b2723877cda71a503f393ad249d0af910d1e8240c939e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLRD52220459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb05176101420138fc0ca110aa60ec9fb5f24506d34f783a188e86effd02036. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLRD52220460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ccb1bde311c45abb7880d6d6dd59be9da3bec6c19ebc20d36163a0d1c22f94. 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/NLRD52220457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e3c8580745f06054eb8c9af64cc8f30e70c762a46759eafd82692eda805744. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD52220458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3fbe68808c1006c788e20daf9bf31d5567cfc4b2765f3827f3bc1897f3726b. 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/NLRD52220454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3fbe68808c1006c788e20daf9bf31d5567cfc4b2765f3827f3bc1897f3726b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD52220454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719d1c0c9f58ea1efb990dad09cd52f3548dd4ee441b0354b7a36aec15ab577. 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/NLRD52220414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a94b8ddf6c47590ad6e5ad11de0f454030f58fb7d546cac6b4292d8662df7f7. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/NLRD52220455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0248ea47962a5bb74c35be23f69bf5372704e29180fbad6db1197c58d6beb9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD52220452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe084a40bcee7c029566f89c5c63df0d3ed0619900fec672860233161e1e76ecb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLRD52220453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0248ea47962a5bb74c35be23f69bf5372704e29180fbad6db1197c58d6beb9. 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/NLRD52220452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbaf136950a76fb8f8a3de0e7157e30e6dad08735e9573b7e254c91f71ca57d. 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/NLRD52220417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719d1c0c9f58ea1efb990dad09cd52f3548dd4ee441b0354b7a36aec15ab577. 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/NLRD52220414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a451970c83d31e929bf1ba6a0c98690e5971237089b4c0dd6dc2aadf6c108c9. 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/NLRD52119971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7a80f1c2ee899e93ae3674684a92f01539f2000dd2f8be5c37262c52103a4a. 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/NLRD52119968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8943dd469489833475350005b55dafdfcf2182791c772184203a018cf5f9730f. 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/USHM22119294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9c1a509832c88d828f13a2e5566f913cd947b7a22f5ccae2e9466fb78e3dba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZKDK2090424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152c8286d3603316e2d9fcc98b248e570ec3fd4cb08a18fd226f1f3aa07d02b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ2151024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9383853954e4152b79d32cf1da86ff027afbb467a21533fd96cfc87a5b361bea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22119299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152c8286d3603316e2d9fcc98b248e570ec3fd4cb08a18fd226f1f3aa07d02b7. 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/USCGJ2151024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef6a5ed6c8fd0009156d48a96334b1f0b5ac3362b158d024955be3562e5ebff. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CA5KR2115451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9c1a509832c88d828f13a2e5566f913cd947b7a22f5ccae2e9466fb78e3dba. 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/QZKDK2090424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc788237eb3e84cfb0f78f1224bdac7b7f7ce2ee3efd585639a8ff70fa6156b75. 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/CA5KR2040984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0ba6d1c9e59bb839350784e35aa22774b7386aa48e2a189f66e903d9b2d8e5. 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/CA5KR2019552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e4b7ea69ccf22c09fcb58d94d27c0c9090a24e0e746a54dbba112b161e6749. 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/CA5KR2000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae5cf819ded21f6fb05d199ea50e4865fbe17bf713c85adf25d0ede2d58f2e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/CA5KR2000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1420799c4a44aa220bc078a4f0ea7577c9069a956f8aa0197b75de21de4bb5d. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/CA5KR2000459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef52e5ea561a502c28495a2a88344b3d1f9f3d70219a6e5aec6d439ef73087e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2000461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94b060d1057a58e5dd5620eade31c4bd5cec8a44ff8671e8ab0929a1dab7f1a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAKDD1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907b92d3f1c167de5c3b2eb171fe7b779230b2421e4fcfb62369ae68bb9ab143. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAKDD1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8849464f99c5c68e90af05f61578e7c36b39ed0c3eda8077f7cdba222e2d377a. 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/CAKDD1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b34934c75df41582f59dcd7ad81c67b654ba6a94f79796fe0c8fb33f464168. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CAKDD1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855db19080a5e5c65a6dbf83db3fe54bf76b36fd9322c302ed1e134f9b4dcbc5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/CAKDD1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94b060d1057a58e5dd5620eade31c4bd5cec8a44ff8671e8ab0929a1dab7f1a. 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/CAKDD1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b92441fbd82628a03fdda394fb3b928cce6ded7fe67d7e1f6c21d9dfd701b69. 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/USHM81892950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7241686093bc51bb3b6fa4731022c69645c2a59b5f701afe9297e0faff6a4c67. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USHM81819315.