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 0x5c1a6323c92b089974617ec80fc388877e559590a524c298955294b60e8644e5. 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/1d9ce97e-908a-4407-921b-f0733f9103a9.json and https://artists.proofprofile.net/proofs/artist/1d9ce97e-908a-4407-921b-f0733f9103a9.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 0x5e31f7038975b2207d1e43d04fac3182fc3d1026deeef906017895391cf78613. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZDA52142373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb603a414184a2678f4ace035ed11ffead0242da03f83e3fa9d93ae5b12f2b968. 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/QZDA52142337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14115ac5af97ef00a26a169f9b52fae1c12d515fc87394c755fc96712337fb70. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:04:08Z), 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/QZK6J2146593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453305af41dd9a1e2f690dbaddbeea5bc98b6c376a73bf6e90065b5ae3e978ca. 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/QZNWR2226147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420c06545c82cd7638f28520aa3acc3a48cbb156459b3f6cebdaf3765a28d7dd. 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/QZNWR2226148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc880dc77972800b14b173eb518050f913f8aefb955f5882031608c707455d3c1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:08Z), 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/QZNWR2226151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce759cfbe9f50734d0ff1d34fe2c6909e5b1389e637a17d758c4680a48c148e. 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/QZNWR2226152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc561baba1eb72b8d8a0ec4ec8329d1c9bb6ecef573972659d898d8d714904b53. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZNWR2226154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b896069bd5a0bf8c3fe752b5fe58b76dab6a6ed7560247895c2667e509e00a2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZK6L2381943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54e9a83f091f1dc11b6bb948d1ecca3c3febe17735ec199b17f2c1863126ea2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:20Z), 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/QZK6H2326023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c27361b7ea41a9a63f56e8a0674abef807587ab252e48c8669479a34864cccf. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZTB32220887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20a518c25da210ca349647b93462d3d3db3d0f1a28ce327501ff2b10a3e8d2a. 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/INS182303017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c9669fa7ea285da58e318ed4561d2bb331c84b32e140a13306b18c3aab65d7. 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/INS182303409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33ce73629f30f10dceb243347b60441c823410c55404a6060d131858711e595. 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/INS182303277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb021c8058d2941c90fa3f5ee0870b04b300f78201850722e985f4d66cc3e5635. 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/INS182303482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bdec64fe757166b8948cdd83268a1cbf05cd84deca7b09c595e0c41874305. 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/INS182303655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a17980cecc8101b5182ef13c5df3d69cf9e48815fb79344407674798e7505bd. 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/INS182303176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5942a2a51398bf5f2beaf047eea029e12e3ea86bb90e10528fb3e4c606d7129. 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/INS182303743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e103488b5378b02bec57e938755fe2df3fbb3e2298fd8905bd2c49d0945695. 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/INS182303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcbefc96a42eeb60885f0fee32a79bdbab9d9321e533b41c3ab97ee0996a59c. 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/INS182303665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914e37e814fc3b2d282101243971f15ff6ee244eeea3f31f853e1f28ee2e7512. 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/INS182303551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150d592d134f3deb363f2d00b25b263cd369151b7187248bcc5521501d273a8b. 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/INS182303229.
Drop The Beat (From "Mtv Hustle 03 Represent Episode 4")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4083f2bfa82afe2469f2a475c8bd920c29514f6c4c75a4beff16082cb7f650be. 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/INS182303210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe877737d42986ec45518751287b682fa5958415ff4233af88a89351377a92d. 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/INE182326113.
Drop The Beat Fun Roast (From "Mtv Hustle 03 Represent Episode 20")
Drop The Beat Fun Roast (From "MTV Hustle 03 Represent Episode 20")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c53353c8d826da20c031e948f887c4f584cc3bd69350a587c0a71908980ab4. 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/INS182303742.