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 0x35b5efee08031f819cb8f4671be05216e7bc8f2e915ef7f95e5ee5fad6a7dac4. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19fe600d-82f2-4204-815f-39571ba95085.json and https://artists.proofprofile.net/proofs/artist/19fe600d-82f2-4204-815f-39571ba95085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Get Physical Music Presents: Brazil Gets Physical 2015 - Mixed & Compiled by Davis
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 0x345269c6ef7758f3d520acd9e710ebb9c8622df0b2abe136c8084b45523a2a32. 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/NLW041200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f8fbbc472ce43dfca79981f41b5bf001f2c806df910196a3c97ee6ec572656. 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/DEU672200428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58480c9788d164470a9d9d923993d6725a5465378e950c30244b17903766bb9c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEU672200427.
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 0x9a160817c8d4aabd371e936974119f382b3b0322b7dfa11e60050cae870a129c. 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/ES70G2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d065aa10dfed730cc95b3e36090d2bca3af1a523f473a15cdbfb28fe8262ecc. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES70G2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288912d7c8264cadca8a2cd33f0ecb70dcff4ad655721025101c12f5739dabf4. 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/DEEC33500992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ce82dc51e90b558ffc77ecd281df450c57a72668be8da64133238791bab524. 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/DECY62200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3367e9fd75a734299f58a44d7c082c10b3ffa93f1373891a48c03f5212f7c3. 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/DECY62200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4dedef3616abd958c27c95039643f3de3205318e8196dea62b5b12db7cca96. 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/DECY62200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e74ae510a078ef0455ee832f8422490299443607d6fb33fc7454dac0ecb0e8c. 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/DECY62200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c20485dcc4ecf17e921f217b8e0bef4f8b6c827069b9929a5e300541d722aa0. 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/DECY62200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecb433a357d22c057f9d4d11600ef28260a50703d2b725d35f870d6fd7c7005. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DECY62200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7822ec7610273d7b23c690641cbc341cf18d072082c8cca4e67b0b926fcaee. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DECY62200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f6092404d2cd4c67b962cd29f5d1f80db2617eaa119fd023b013be7c0e7f5e. 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/DECY62200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a06b9be71e80230856ce639e9b8ee108810bd674d7f4a57cfd1c43feb7c9c15. 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/DECY62200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dc4c79de8754ee365b452e2c01ae434cddae699f32110efd30ad6f4363f15f. 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/DEG931750440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6e9f8dc134d6451701d3d67abace6e168f1394b3056d4b1cafd1b46f00637. 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/DEG931750441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8dac88ef18e703430bfcfd05dbe14e180f8fe63ce5a87ca30c259b66282e64. 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/DEG931750442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f82dc02919ef7d0b25d56aa5f717121fc726b5505d3ecf81b5d72099519bea. 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/DEG931750443.
She Thought She Would Last Forever Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdcbdaf6a4fcef0adb6be1463b534bdfc89e9bf8349430a61193ab63117f62b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DETB31644050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ffbd05489d22668111130e186e5f9779fb9d25e3b24a21fc77a42ccfc4c49b. 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/UKXN21941386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2524b688630cb46fc90641c151abd10d4772e7bf2e9ed2578a1c8c4b3098ef. 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/UKXN21941389.