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 0x01e14a0488c00d1150bd21817a0d3d0ea0f41b905ad23a510578510e2c870eca. 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/bf2cc2f5-d04f-486b-a6f0-00c5413fcfa2.json and https://artists.proofprofile.net/proofs/artist/bf2cc2f5-d04f-486b-a6f0-00c5413fcfa2.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 0xbafb0382dd592ce72ca047718c688d624e2c62e167b429c796680d382465f823. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHN42430422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343090b945a66d5121ee5329d1ddd25b8dc719dfca3923cfcea87b93b58e535a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM42K1812852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfe8da71d104be621f36ca24b14c9466e267a2bf7e343996f879cb4e4d3f036. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QM42K1865168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3bf396729c8d68e6a983b6a52ec628d0c450eb501285870674c4531d92a910. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:06Z), 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/QM42K1843464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297586ec429403dadfeb6c65201abd876c6b656c7b3fec43e690500cd54fab17. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:19:27Z), 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/QM42K1881704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03718c01d1eb4931da53bbe6cc50f9bf179d46b8f1f88474299332c84620c465. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM42K1980546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c24a38ff37d7c4098633964fa6e92f7038e1b1c999ab5e28ea5703401545ab. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM42K1917699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4773c78f8fff58e71e9c74f599372f79154dfee5f7ab4fc41244cafc60e8822e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM42K1974329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769a7bca883eb301c8ca21b44246bab1f7b2f755d72a5a2fdc9fd83a41392c8. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QM42K1904595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541daada535d2f6b2a3df6ff64df1617a247a9ced9181bc57b58958b308d569a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGM2275642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7b225fd099294dfcdb37acd7fe3ad30768362440913b62c98ee074b6f54fb. 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/TCAFG2010422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4297ebaf8b2e903ba5ec2c47d7f53f4e2be4eb3688c6c5cda31179c11f114d67. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAHC2316860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadef81a00df7e1e95bb0b3947197470c61b057b85c0de439ce8f145d479daf35. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/TCAFK2194539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3eb59a0b5bec77aec94221fafd19abc1298e4581fb3cf5b9a8da8b090a4a1d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAFL2105802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9844486a672a721ad743e3fbe8a6c5077c86bbec51ed0eb3265dbfc53f3bfc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFS2141612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed05ce8db36a467d2a4aaba00fc6f3f1eedcaec7e8a1bcfd158a0ac955ec32. 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/QZHZ52244940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b83a70b10ca8a323fd650bc88906736abb9651eb99b95809b10c12d9621b56. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:23:28Z), 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/TCAHD2316009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8605e81441144e668e9001ebec46d31fded92eb62346ddd37478f5518d546b9. 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/USA2P2352378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb987b38b8a031c5081815c94e3490fa232a29c774b53193e9bf418168795455. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:37:31Z), 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/USA2P2477017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e7878b193cbc7caaf59907f03d206628f182a7fdf0114f4b5634b4e6e38e49. 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/USA2P2478311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e50e06ccf891873caf59d546e5f42454ab119fa9f82eb2dfe0c1c0524e4a63. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA2P2524417.
Don't Say I Didn't Warn You (Jersey Club Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8daee4f031928e657e94366544c8973d485e94408b25f7503661f4a906d8bd. 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/USUG12201200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99011f00fc22a713ab793527ecc3e1e24fcc0e0dfc9176aceda0ae28db8608f9. 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/USUG12201198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49792d0bef444a69ef91af3fb253f652c0bfc615e2cfbd03aa99a40a52fbb20. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USUG12201197.
Ease My Mind (Come Over) [Jersey Club Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57721f9cbabc85b93b6b07e368f8938d10edfb16b95f43837da9c966c1ad90c2. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USUG12201203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a38345c761735d82a36a5660db2fd6230d368f340384cce5900adb2d1bc2516. 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/USUG12201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550ea32f94a6a17e5332d25364d96e8fbeed684846e6d37e03e4e92e3162a7ed. 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/USUG12201201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e6ff6fd5e20114ade4154297761f645eb67584e722420f1a0a115cc5616109. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM42K1710481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55041f78e2c36b2af88db5ac0cb88ea06cd89ea56c5d189a74bf47037edb2bb6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USUG12201199.
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 0x5ffaa015f3c647923a4b371cb20eafd96626c3207b7f7f1acf6764e9e7814169. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USUG12201196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc97f705926d4d7fe1877099ed9fe7c6a4e763cfadd53794b2a7eb4f6c3f74e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUG12201205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21851e0b3324ba0275799340cbd798eb2ba36b23bef31ce6955dd6021bf33cd2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USUG12201202.