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 0x79b97db14ca0f11accc7e32718490ae13e8fcc96f5914998d2f2f29a6a944591. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbce6b3e-61a5-4fc0-a35c-6d8572f27c93.json and https://artists.proofprofile.net/proofs/artist/cbce6b3e-61a5-4fc0-a35c-6d8572f27c93.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 0x292579dde30cdb243263159712c59e180116b58a4fde50198687625fb67aab59. 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/TCJPJ1908060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2920086fb1115b7ef2ad5befe45085477af2bb543feaa3aaf875b47ecf788312. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPJ1908061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d55272d26b47fb2513412240ed08b03c6d5c5566aa54e5ff9a12c99b5102e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPJ1908066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf50d28d94f018df90bec790f8f37c7e6c9862d2934eb11822423e4c48c95c2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCJPJ1908071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292579dde30cdb243263159712c59e180116b58a4fde50198687625fb67aab59. 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/TCJPJ1908060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2920086fb1115b7ef2ad5befe45085477af2bb543feaa3aaf875b47ecf788312. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCJPJ1908061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5410d104b0c18b0d829cd143364117ed2de864a213bd2e3d38d4edecc6c77e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPJ1908062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d55272d26b47fb2513412240ed08b03c6d5c5566aa54e5ff9a12c99b5102e2. 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/TCJPJ1908066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf50d28d94f018df90bec790f8f37c7e6c9862d2934eb11822423e4c48c95c2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPJ1908071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab49c401dc17ec220fac5814e46345a041738e82f9c0895ff352820a1c46f2ea. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:30:12Z), 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/TCJPE2581217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52ddb5e44b5bb7264fa74a986c87b2bb2e2ce36a57f67f83a63ae1e74ee16cb. 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/TCJPG2578819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036c1099d283aac297936e4b5dd7fa8ac17a55fd74e1023d25da759b18367a12. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCJPG2578982.
Made in Japan (feat. ¥ellow Bucks & JP THE WAVY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823ad23e633f42c1f374bc7780d81984f6fb8a9f24a1ea2488297dfc04d6a48c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPG2579052.
High Land (feat. Tiji Jojo, Vingo & YZERR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c447b63b519f992a5410658b4ecb02b970943589df7cf10bd8ea0edfb7a54e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCJPM2013075.
Friends (feat. Vingo, JP THE WAVY, Benjazzy, YZERR & LEX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe608d727f0a737b584e33feade7e8905db7d0a5fd03ff5f51d59b3a87fd018a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPN2184411.
Asian Doll (feat. T-Pablow, Vingo & Yellow Pato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9894bf70b37d77ca70ee3e382f0635bf75d3b4405cd8e037fe4e469694bcb53a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPY201706839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c447b63b519f992a5410658b4ecb02b970943589df7cf10bd8ea0edfb7a54e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPM2013075.
ONE PAN (feat. Vingo, kZm, Benjazzy, Red Eye & Jin Dogg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8462587997cfe1df22b8a37611ebe6119db4342011d889cc0c291b6161ed8a1d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400345.
Chop Stick (feat. Vingo, Benjazzy, SANTAWORLDVIEW & Yurufuwa Gang) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4244ecb1a154d09b9da24c5d9f029e77541e5189763ee5f1eee9d07c3c183fce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCJPN2184418.
Round One (feat. YZERR, G-k.i.d, Vingo & Bark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0534c7c4ecb382d8ed0fc1278fda9d5f8cb843286920e69fae589000917d1bd4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPM2013061.
I Feel Like Goku (feat. T-Pablow, Vingo & G-k.i.d)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54975b6c2c72bbcddad0e27602ebff24ba0b817f0ff8b4cf55f183b5ca2d7b92. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPY201706831.
BAT MAN (feat. Benjazzy, Tiji Jojo, Bark & Vingo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ccc9d750477c63ed65fd7fee88425c00a18ff673090b44f6e6d0faf76afed6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPM2013063.
Last Party Never End (feat. Tiji Jojo, YZERR, Vingo & Yellow Pato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115dbfa10b3a5eabd4a1019ff41bba927a711906098ec87d2b418bf2ff5af4ce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8f3bacdda178558e2c2aeeacd62f187a1144c972947dec7b1f2806ed4e5287. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPM2013072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115dbfa10b3a5eabd4a1019ff41bba927a711906098ec87d2b418bf2ff5af4ce. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400156.
Choice (feat. Vingo, Yellow Pato & Bark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3513f1fb3fef737d1a32d44fdde6b26325de520d57eaaff4b7a7f90e0e4f23. 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/TCJPM2013077.
Final Round (feat. YZERR, Bark, Benjazzy & Vingo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb7936b89b136795c0c98b493f6116111398e900fb0b88c35ee3e7912ff6003. 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/JPWP02400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711d3966c336a1eaeb55e6518146d02da37c98ab1c7e981e20a61c9c9f1a85d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab0325925c780f47cbfb24bf2625f55797c8a0c8662a998e9d643d29629ba0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433124890ea4b07128117bb5e2084a014a5f6c7bde1249f2b13404caa58045e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPY201706829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa7301ab3535e7ef9b8efcdf3cdb3eab1a3b2e5291a2750befb9a19b648d658. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386a6df430289439c517609156e9b23aabc2650b7556c447da6a8d3b7b07035f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPY201706842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221105a9fffbf14930d8a93ec7a72340e6656524f764fa9ed86db1a4602a32ab. 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/JPY201706832.