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 0xff9bd444fd91aed1125ab406237ba240dfd5d4f2ed56f1d61ad6c2abb80795d1. 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/254c11b9-46dd-4b3d-9f35-6456c6c36a5c.json and https://artists.proofprofile.net/proofs/artist/254c11b9-46dd-4b3d-9f35-6456c6c36a5c.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 0xc528f54a0d4c3d22d32a1d987c64aa1da7b9f0fdea17584ff2717aa18daeb60d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEY471980394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc74c60f95e6f378030433c365d631d5f288cc0a032d41927bd357a3ee920f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:34Z), 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/DEY471980396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e41f18f9f48f5f33d98636c39bb2fe8cbcd84c5d0aa806c94abbf4101fd7ea. 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/DEY471982389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e52e832e86d0f1931c450f8e56fd5b897c968cecea8396cfde95f263dbce15. 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/UKACT2031470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa1750a53ca90969f166e30fce44ec4272258753fe89ccf9051d162f851b266. 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/UKACT2031471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27d37ae309790cf3031c4c7bc88ce2318c2b4c86b06ce063846614d7776cca6. 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/UKACT2031472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6509d2a62081fc1f45c9e35695e19f98fa3a0e41815ae217b7082d3935f55cf0. 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/UKACT2031474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bdf061bc458b32d13e90156a938d91fad6e692eb22fb6ef3ce437f6f5ff653. 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/UKACT2031473.
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 0x1908c23598c3d9ec59d288b2412e513ed3f5a3c3cba7b23ac3501329e4856ff4. 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/DEH742180331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75dcb3d33f13866750b3232de7d627dffdfc7ee9035e97260f513453e087309. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEBE72200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138d430cbfe4b2c3c48fa6450221ab1d5a1de9732fd9051adb4553e4aa9f013e. 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/NLF712400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c83a33cd1993de9273b88cfac486339f88b273bf13dec7661c5c27ef36b4c5. 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/NLF712401580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f413dbc58613aa239b1bc801d5e8348f578a26a4d06cf14268454215e136659. 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/US83Z2488555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242f3f32247fbebde2af2a9c70cf4b13b24227b61152c36f98cfcb6067d35cad. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEH742420082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6ccd68dbdb21c9cc0cd5986cb9f3c3ad2defb942bfbe060f1d3204d569b84b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CHC652400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5267c95ac1ec0c7e701a233f71e994c3e3d65b6baef5c3b39bdcf30147670371. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:40:53Z), 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/DEY472576359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4cdefe2078602bba3ab4b1e4faab3b3572bb9528f70422ac92c67d389216d1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/NL8NG2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff01135ee4d5258c8c5c18711f674def2f7ee5807e407cab08aea4b24f72a1c. 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/NLHR22000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaaa369e0cc4e2148739286dfa15ffbfae849c4ebe68af5680559a65b358f78. 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/UKACT1931599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6ccd68dbdb21c9cc0cd5986cb9f3c3ad2defb942bfbe060f1d3204d569b84b. 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/CHC652400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14500d81e447efc7cda7803d6ed8a9e63a209ef7dcd80e207949e41d1ddf0d53. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US83Z2042177.
ASOT 1167 - A State of Trance Episode 1167 [Including Live at Ultra Music Festival Miami 2024 (Mainstage) [Highlights]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f37afa5b4b5cb93fc89e4aaa0e19928dc82a9dbcf8a44262a148b90195ce2. 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/NLF712401937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef2c29dda753a80b8d30b99e9f2f7729e35f4b4069a13be429ef5c5d10cbb9f. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/US83Z2222227.