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 0x66637dcc580caf5090983c82e6cdc7de287b0777ad9b0f0654d71030edf01055. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1243197e-59fa-4035-92db-c2c46011a49d.json and https://artists.proofprofile.net/proofs/artist/1243197e-59fa-4035-92db-c2c46011a49d.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 0x4adaf396cd0b85338b44ccbfb623e5dbbf4da94ca6eb254d1c71daf6cd5bbfaf. 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/GBHLW1800414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b6d6777d3d49f60b477b0ecc00afe96fda5ec46cab3c50487e0dc13599b7c1. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBHLW1800415.
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 0x83a306aca7f6052fd91dfdcf6cc39f7a70a0d1fe80ea8cbcd8c3f111ef661293. 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/TCABY1428282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f52db3b3af69ed05f8d0b21742a764285458cab9875d3e58df4644f45304be1. 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/TCABY1428293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0624ebf2cc472f5305abf6159b7dc0febcac0a0dfd079a700d44a644dfb0a2fa. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCABY1428288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb990142e7214d2624b808ea01c3900b9b627616be783cc1ac09889aabce47be9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCABY1428294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb444a36ffe3483f464ad3a44c4c3db8bd78aacc484aa708eb43d8fd777ba38. 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/FRIDO2010257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed16b3a1e5d5a72eb3218a1e71985d9ef1e4192ea6b66f77d82f2b458987d1e2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FRIDO2010270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddc2236918184a348ebb54d7d4857a358674a1da73b20522220c752be9568bd. 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/GBKPL1964792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f222ba8d1e30f1f553553cd2c0cef159fe8d78f27a7a2ae61bb827af5be8828. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKPL1964793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb3fa9df37423f9362a31c1400c3efb30a2f2dd67ec6a9f9ce430e242d79908. 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/GBLFP1735421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c9ae17c1c7f63c399344ac3961ec8b96e5b3e68d098fed71e129fd452ef6ca. 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/GBHLW1600896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13ec6ce00fb7b5d555ac550977a7a7acb9faa38d92e395f33d6ba07d3dc38c8. 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/GBHLW1600899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e0e60fd2a8521dff5749935c5b571edc5c58072041e882772d94140643782f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBHLW1600898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd548e03a9f16bae345f0226c58573bf5dd1b36136affe58340b154826bee71. 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/GBARL1300713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3f9d3bac0ec3481342a9653e20bacec3b29bcadac2874d41bd16a65e23907b. 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/GBAFL1300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c95b3d22dd7f97cece836dba2242cc170c82454f520965872caf4a3cbe4a5. 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/GBAFL1300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e31b7ae18aefaa81a0660701983e69c815594703adb12c2673e4a0ab4885e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAFL1300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b67a8ca0640585510a8a46ff86da13e09406f495482ceb2248993f8c606aa55. 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/GBAFL1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa1c1fbea561d44de2825db649bb6d7f08ded8059df724b145213990ea3135f. 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/GBAFL1300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f48b394766918a617665186ff3656588e064c9eaff2f63c601ed11b052c5aa3. 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/GBAFL1300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894b28a235c1b91f300d342432f5611488890f11ad57be7a7fb144a467a25f54. 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/GBAFL1300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c57894508c49d9a010084c7c35e264d78ac1e2c9f055a40d34b3bd93d73caaa. 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/GBAFL1300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531fadfff27eafbb32948c117977d73ea8d7c799b9d63184532e8880f8690f50. 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/GBAFL1300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f9990148149b1125596d45d98f859ce272fedccdb6ef5781a36bc53480aa06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAFL1300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e38eb8e616ec22d3b6fba0de34fd7c7bde946d25fecc65f53dba543a203034c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAFL1300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73152ca970431aabe26c2a117ea73ae3ed9d50f98a9227d57780156639e30763. 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/GBAFL1300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35af98b7b39d576b21abb659e78a9a37b1aea61fc5d586ac69616c331949fc. 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/GBAFL1300081.
Kitsuné: Xtatic Truth (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d3ed691ac3c0d5843bbc434b1988d7ce238f497c6117d780c3a770317db464. 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/FRU700900027.
Xtatic Truth (Last Japan Remix) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef92add7b9c09500fd4e0f16823e3ed29566358f53e4bf34ae86fe9efed46328. 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/FRU700900041.