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 0x50539032de8381962929e1dc5d83344ee36e7151d18ba0827331ee76b2278dce. 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/a94bcf50-2c35-471a-b8fc-306d31242673.json and https://artists.proofprofile.net/proofs/artist/a94bcf50-2c35-471a-b8fc-306d31242673.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 0x54a82ed6878d17e2068759bc1310bdf01b854534d37aa4d260a2b61e7f685423. 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/QZHN72250324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4806027e8611d14fb6a73a2a409d49d853f9545912c6bc63ecfe1cbca5121e. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZHN72250325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca45bd937b1af55faaed7ce96f66d33167d457d3fddff060bc32e4512a770a0. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZTB42552078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b3253a0c32701ef5304d07732ba23973d2b67297c036cb7711ef10de6a00d8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTB42552079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066292acae4e81b66c62b1945c631f4c1a4431e8a32787a357615ce04ce3cc15. 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/QZTB42551925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d34c40104d3c69c0feff6ee105e4406717cdc888cea8fbbb20843dc6db75072. 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/QZTB42551926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f80453e73e69f14b9d2fbbbe29814a427929f7eef34fb9b6bd49cdbf78719c. 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/QZTB42551927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2ddbc60f1fa8f17bfdf5446950625a3ad45244053ed10e87c8371e5e99ccc7. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZTB42574705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae61c6df8e70e70da3b284c8db53eed37b572e78a9a7d7390687ebf24e8b0c5. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTB42574706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7883c96cf566f03da00fc19a49b01bbb126adccbf124f94b5b127535bdaac43. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZTB42555134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7caab093c5c293ef3ac063605dae8dadcafb07d566044b46a84a93890553f0f. 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/QZTB42555135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a910c87873ebdc4c28176c6022e2878f2a0b9c14f506731c6b2badde6d5b4d. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZTB42557557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b9874e9623b838948c550d96abfd32a75208a1d57005290c0bdb72c1cbeeac. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTB42557558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adff31f7e58320ee0daa16e6d2e53d97c781f3b77ed8c2100128e1867752c59. 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/QZWFG2549799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9630bdc9e20bda88443edb7648f964644910d0e6faa4c3ecd73b050d9041bcc. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZHN62223495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f35b7f15edb7ae4b7db6727d2e33ed3bb324fe9a0a5a4806b866fd077c5ea9b. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTB42572267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b64b8a4b8864316c9b7a8c68997fb5d0a23d337647013dea08dae0015636b9. 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/QZTB42572268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16777ccc8fc001551847c05e78e2ae898d07be31071e076c3450fbe721da43c. 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/QZTB42572269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2dc22398931b10537e2a5fba8096666497bfe69af1bed7b7daa5c072ff6b55. 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/QZHN52205259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5172e0951ce241f1cb7daf502ea3d0d276216b907f95efac40c4cf483856384b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTB42555139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6171e05bd06e8c1e40968a2be4233c6c52879c74d1f4c0040ba358c26450ba76. 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/QZTB42555140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf391ad93ea09159b877e47da3fded9cc2e107acff2d0066a34f8d34d7a8971a1. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZES92250006.
Jesus In The Jungle (Volume 1 (Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac515670ca45aa946ea769437053c0eb7745ce44511563aeb9fcf110809d1fd. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZK6G2210119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225cf7ec00225d7c8501ef74bc7ffa6266ed85bedcd6cd99aca6dd2dfe2402d4. 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/QZK6G2210116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc863a540747570a04acee98b331ef7742965b552194f1e4ecb477469a849d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZK6G2210117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d294c235ac392fea9dfe3164d3df77c8ab01a5660ebe9929f80d02edd59ca5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZMEQ2257357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3856ae5d54a5a05723b9cfdd1c58ce601f83389d404c2a0292f3bbf3675944. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZMEQ2257358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd20aa6524842872f1f8a34926b1cf34174c822fe0ac7c1f742a13ec93c00f7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6G2210200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28cb78e430aaeb4fb7a4dd8a33d073b470a1a6dd7db0e6f4480a2b61f054b5d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6G2210201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7745ecd80869a8bba03d3dc60b1164ddf1c245440ed04cd5c5633ee73f7c4d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZK6G2210202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe04795205af961aee345c38378b22cb042a74547aaf0df5a573050afb12abd9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZTB42576317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616051cfd0e549546391ded120825e0938735ad40cb7bb6c24b46d08a498e124. 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/QZTB42576318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd213b1f950ed552c2955bf3ee6212d71160e0a5b2f447cd77fa5a66f2fd2f9b9. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZFYZ2301175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ac9cc7dfcfba4e6cfb20be0d459c593a25917e5d20b802c2589693c2bac041. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZFYZ2301176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146cae87ad35edb4b66aec9a1b87ffab421bc363cdd2a807b59a997269e08bfb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZWFJ2317665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eca4e76d7a91eb6c0eff0fa652af8b4ab03ba53a71be41ab693235cab8f776. 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/QZWFJ2317666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b845143eb974d0c173de324752a662b2c8576264a8da001f4fd4c069a90c320. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNWR2403326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c88ce3178f3f0edb92e3c5cf9211a96d43ece54d715f8fe1bb24c7144eb50d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ7X2461807.