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 0x86052ea113bc6003b6ad2295ad5c5cd0654f8e493fe84d50b6cd2988dea142ce. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a740014-ae4d-4d9a-b6c2-3bdd38aae4c6.json and https://artists.proofprofile.net/proofs/artist/4a740014-ae4d-4d9a-b6c2-3bdd38aae4c6.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 0x34a954efa3a278f8b02ebe5d37c6a4c86691ed4c2c1e18368ae726ed581cfdb1. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZK6M2413743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d311ba7a6bda18d71d4e93f233bb59020733ddf91cdae082eeb360d9548080. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:47:57Z), 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/QZK6M2414268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d311ba7a6bda18d71d4e93f233bb59020733ddf91cdae082eeb360d9548080. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZK6M2414268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8def28de6e3de64f3329458c83dfd2880d3a529b800ee005a9936bd28d280c2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZTBE2498016.
Last Man Standing (Jersey Mix, King Nasir Anthem)
Last Man Standing (Jersey Mix, King Nasir Anthem - Remixes)
Last Man Standing (Jersey Mix, King Nasir Anthem [Remixes])
Last Man Standing - Jersey Mix, King Nasir Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5651d87cadae4644e90f0a2e0eb8de52898dedb8642e3b83de2368b6d03fc12. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMDA62447299.
Last Man Standing - Jersey Mix, King Nasir Anthem [Sped Up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1286af924d9e9aafc190ecec342732c13ad6439dcbd2e18e87405232c3256d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QMDA62483835.
Chromakopia Nola Bounce (st. chroma nola bounce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12957f2f7d0953debd83f41a755887504a6e822eb6d3ea42af7a62d1fb35f95c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZ7X2431446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaec5aa5375186ab1e61af88ca533dbe3129f3f2c47b5a654b59cedde071ae4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:56:52Z), 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/QZFYZ2558105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42901bffb9846a0e231b56a40e45ef178e01e7e2b652f75b7db0d8ff2d0497c7. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZHN42568155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a37d59f4d97b36824d8b289f2e163148ecc321fa61ab2cfb84ab862e0cb1f3b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN42578426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0649056bb83ff76ddfd9e8adb5410ee64e011f99b91e9520b84c3040c915caa5. 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/QZHN62560376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20b2c11ea142ca25a3cbba255be4a27b58cf15d8ad09453eb8ce8079ece11e4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN82539099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fd70f78a792297e6fcd394833dbb50af01dcf04f7fa9b11ef4d694b13862a7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6P2518500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a75896acd50b24f895161092c105044be99487da1157b97945d1fd96d1fdd9e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6P2518502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20b2c11ea142ca25a3cbba255be4a27b58cf15d8ad09453eb8ce8079ece11e4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN82539099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcfa8f9c4cd5184e99f42d9ddaba55431cf4675f8264a817f2c147a0d2dc043. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6P2518503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3e459cc2b6fef217e32e3b7dc74f4fef8fda18433c1579509a1b41ea86ac65. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QT2VB2430912.