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 0x39a18cd94c7d5eb88740097d92354b5ab0630277571505b9edab0403c23e36d6. 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/5220d29e-c7a9-4552-bf5d-755f6bce8b19.json and https://artists.proofprofile.net/proofs/artist/5220d29e-c7a9-4552-bf5d-755f6bce8b19.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 0x8c8d8ea9ec07b470e74d06675536d574bf62c73d9dbc207666c82b23f1e65f22. 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/USUG11993831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3906668085b7f63b8ed76399659d744b3bde1a7fcb444b48b08b236cce6576e0. 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/GBLFP2319830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298bd066584775c527138b6f0b7a5576507b7b77a07f420c64c689d362810282. 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/GBUM72201933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a876df29843a9a75c40c89b72fcf412051c4c2f976caa7a8b49970870fcce. 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/GBUM72303888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90211981a66abd60e27272e94403a410ceffcb4510c89b57525f82ee0f3f2785. 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/GBUM72303886.
Hear No Evil, See No Evil (feat. Miraa May)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bff501a595db74a93026ba2915659a34be30d3c77cecdb17a939a52c6a099ed. 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/USZXT2352809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a876df29843a9a75c40c89b72fcf412051c4c2f976caa7a8b49970870fcce. 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/GBUM72303888.
don't you see freestyle (with Miraa May)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bacbe1223ad6e0244021005abe93d6d2c7e83f92d91db2d46cbc3c6f57a0e11. 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/QZUCN2200524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620bf3889158118761e50588aa988f8af9bf7486e9551f23b068b339a7be41b3. 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/QZDA72317178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc2422c97ad9fd7ef5d5d355c2df22d04a353e64f6c6ffee7d538d5e514a888. 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/UKQNV2100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf2bcae8a3a2b7865cef34ae12eb6953878d5d60a749c51140c28266ad14773. 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/GB45A2002496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4521beee752ee4f46c660d98b8ec2d0b71de83de4ee5cc488e87c8c245f9eff. 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/GBUM72005217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24c6e4eeedd33d59beedefe58a1a14b8af1262d05acbfa22b3357ce0184f3a2. 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/UKY7Z2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c646a846c44ac047363ae92dd54bc4f0a86964db8432f246da9ae252a9b6244. 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/GBUM72003487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d7f342e0726b98f294e00b91581862a9977ec41ddc97cdea89217ee327f46. 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/UKXN22048561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3e596bd1ee86e241f7b9fc0038f3ef43b0bd418659919de57fce59427c6a0b. 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/GBUM72001970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d47e2dfffccba797d75ea1f92686a4babb986c2bbca5e6491509e00d80f431. 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/GBUM72001737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865121c15e8ae3283bd1c62d6446654e5df190b3814a5bdb312a7cbf7170b952. 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/GBCEN1900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c9cded6674dbe4085d705c6b65af376b9a3be5bc6fcf4a7582d7a5dfd0bf32. 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/GBUM71903145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6bdc3dab7c61b7570d1d35ffcc889565e873ab8a453c0a914f93d50d724011. 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/GBUM71903143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d96031d0aa54a1bea7e18963e59974029d8158e052e34e381643e995c846d6. 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/GBUM71903142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6e9a2322bd80f0d3d884b9c6e8410d3bdc81cedba660fa97515b5507606ce6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:12:50Z), 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/GBUM71903466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828c7cb679f7b31f943e3ad3844c1f88de051887e3165298acffafe1e4b1b322. 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/GBUM71903141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1142cb944789ac3df1031169fee3679151255fa476b6ad5a1f2ac96d97aac52a. 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/GBUM71903366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabda6274d6071cb90665b871b5d8debfe6329a76cbca2cdfbd4cc019b59ec9e2. 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/GBUM71902375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ef16dd925a2029fc644ec223a158194a6574296797ed70b13dd2f75f552b06. 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/GBUM71807200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4e252e220b5b9d53f87849f2814467d161d54f745057f9c9e58a252490e474. 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/GBUM71806968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec928fdd897e7ee9dc9be6a60f775f79c54d78aa6e6b071f9720f13938038799. 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/GBUM71807404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd393e53e800292fff09bb2912b6e8e0029f47bb5c5dab197aa0352aa869b416f. 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/GBUM71807402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635dc8be7469d0c600c0b66f070f0d87cf57cbac086063ab20e559658b390b4a. 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/QM4TX1772790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88200d332f3254cae7b80c8e6a3348e97632f4a5b3ffa2dc8b15fe6481b84aa2. 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/QM4TX1604732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9327bc5bcf48ea6a0d49b743beb872eb98f317fb375c741a605f27e0fca9abe. 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/QM4TX1604733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeada2ef7ade257bf54a4aa9c3a7be874f401b0f57a43b2f6cbfde4b66722be7c. 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/QM4TX1604734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159db325ca1c5c218d9bd36247fed5f15445187a1d4d1a5933c2dc61e132a7f5. 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/QM4TX1604736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe980563e06cc83e125c9cb5bc874869ec88e31df7effd74005439a8d7e520e63. 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/QM4TX1604737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8d8ea9ec07b470e74d06675536d574bf62c73d9dbc207666c82b23f1e65f22. 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/USUG11993831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3906668085b7f63b8ed76399659d744b3bde1a7fcb444b48b08b236cce6576e0. 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/GBLFP2319830.