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 0xa4242df49f251df342b91a2ef0dd3749467a242a7dc4caa777548342c5f38498. 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/f2083f76-15e2-4911-a5d1-ba9ae913b174.json and https://artists.proofprofile.net/proofs/artist/f2083f76-15e2-4911-a5d1-ba9ae913b174.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 0x353a39640a3c4c3a4f5087303dda3a89c84760cb1788b6abb46369f3fb3ec192. 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/UKRMQ2300482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019369ae46f96714c52d7cfefb77171b17542f5effce9b585bff1558a35c690f. 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/UKRMQ2300483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffdee66d1dd481049eef7605ddf3f8cf2338b92d6a4a27cf21237334f936404. 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/UKRMQ2200392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e05c64fc64ec82aad2d2cb5589e0b962bb60b910ac58f9f7740da5baa7785f. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:51Z), 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/UKRMQ2200393.
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 0x7ee86809039eb55d7f73f6ea87bf80a54511c5a8453627abe96cef3ecfaf83dd. 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/NLF712200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14ec4425bf7d6889040fda27b7b51ccbb982f6d4bcb292963ed48863ad46b23. 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/UKRMQ2000894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0463ae4aeebebe3f2100f52db46203c5d992810b386870d4162499e490078e. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/UKRMQ2000895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd827c703f92021a023a4c0854b6f16dd360656fbf4f4e2d4c98184b421779868. 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/UKRMQ2000479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdaab7b2a170b217e42600f7974c4095c8da87d8741284cd909646b71352f05. 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/UKRMQ2000478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ebf3203365579571ee4cb862bb25eef15d0dfdfa24b1fea100c07c9606b570. 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/UKRMQ2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9f0d02862cbfa786347b473396ffa8c15bc4d10593efdfa78e1d8bc920fcae. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UKRMQ2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4bdc85b9c5b36c639d7ae9494d568eb931e95bcc48c97ca2f371ce4eb14528. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/UKRMQ1900758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8317e8993da6a0ae4eb2c9b2c105f3d36a37f2c10b75a528946b01af0e7efe10. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/UKRMQ1900757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27d9eedbf030e27a978b6ad59fa714382e5488a81dc2d87a67683ca95cc2a3d. 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/UKRMQ1900440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08274cbcd921d83651e84fd2fb28bb7ea459086f0d5915630e005e8809576497. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKRMQ1900439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6b405e03b03439318d15585cb5f3c3ac1b16efab1112226f5a08b87f850404. 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/NLD681900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf7e6c8e0f2be93dc46b0c63697edb7b6199f2674cd9608a4bea5c5a5665a1f. 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/GBKQU1915731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1129522b424b655b313c1098487e6d2c39ff58655ac6bc3a165c51c4e1423b. 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/NLM1S1801098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed26ee8e799fd84b42a9ae2d4a371ca53719e716d123eb01c4ac57b49bc61ea. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:25:48Z), 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/NLM1S1801099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2db43fec7abb30bfdaa09567765e88c00bbbb5314f90312f09dd7d15f8fcfa5. 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/NLD681702901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c3aa0a8ad24d35022d59aa2f4e155e967301d49d8102755fcf8e37644d3cd0. 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/NLD681701531.
Shadows & Light - Andy Tau Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31b618935d43a5694c1ef4b6674e5e858af043705447f874e7cbd0dde00adf7. 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/NLD681700197.
Shadows & Light - Solid Stone Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7fa50cdec96606c458bc68075b150651dd69931b3aee860b0e614c9b3bad49. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/NLD681700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc9e58898a291e754d77d7670e9f523ee36feddea376712e8fa996906e3347a. 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/GBKQU1693665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8315d870c5355896531608b999e790f746e8570960d9b01e3de1a98b48f9d01a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GB3W41600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b772d1e05a35ff37a23bca725961c71fcad07b66560882423ab756b12e1887. 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/GBKQU1654409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2240eae39574745ddfc3860a066086fe698871bb390a234d47bfad4fe3050871. 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/GBKQU1650366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a73b5b90e0c79cfa85b52a865d405a70c7839f8b5372591e6af9dcc140e6300. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBKQU1650367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6f5c96cc2267a52319ddb5dd78cc7db033364deb827ee84b16ff354ce7a1cb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBKQU1621449.
Paradise - Giuseppe Ottaviani Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8b4e3b03c15370cdb667b74f7572170deb10b4afd0a22489ab4e8780997b7c. 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/NLF711506801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e45e9a3eec7b9da58251ef1d8f1e2b1abed24165fed3d5aa1f9805381e6f35. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/NLF711506800.
FSOE 809 - Future Sound Of Egypt Episode 809
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61f4300ae589dd9b59cc25d2fcda133737194399cdaeec406c3e74b501949f0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKRMQ2300679.
Future Sound Of Egypt 600 - Sands Of Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d5dda84fc4da30be736f15a9abb2e9234591dffa2a3767cd20f87a0bdd1a0. 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/UKRMQ1900599.