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 0xdfdd7d8ef5e9f56d428cc4bfb5bda016b72679175b5ed0d30be07ed899962005. 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/1ad80c1a-0e5e-47af-9859-e833c6488e95.json and https://artists.proofprofile.net/proofs/artist/1ad80c1a-0e5e-47af-9859-e833c6488e95.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 0xe4803def94c3f0217b697941188aa7f0fcafbadaae2d8e1fbc4526115e97c9d4. 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/QZK6N2261959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd7da6ca791ad1ec60dcca2773d866bb19565f15b04377e8d3c6d1291176cd7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWR2273475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4efece4ac79a5b630a65b27ec0e05598bf8a7b6580cb30323a3712bd11f349. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNWV2263728.
feelin alright (David Guetta I'm Good Hardstyle Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72cb039a51c86c054df9beeef6d2295caa590a91ec62561296e9c92b5d1e87. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAW2241279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deb01e5f329e50b6d2d00be51a3d35d0b40e275859af5c5a527717b06ce0231. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZSYP2342598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3c4265817f5174ebcf5dade0dd314fc8560a31d855ccc7bfc6f86d0bd21913. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTLA2398853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9d6401a1ac57d802d1f3c80345cb12e55da0b1847384727fa90e3724adaa49. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTLA2376330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c874b2655a2901f578ebaca3d62eedb5ce4b9044c9104c620260d1fe2cc2c6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZQAY2342916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d99b224dffecc8dc15aaf3ecdea10a5679e732c29c31e601278d117951d36e9. 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/QZVEM2342497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a2356e8aa3b58402d5c6eb997b774e77ed54e1fe41a5f0c9b014c57aad6f71. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:19:23Z), 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/QZTAX2337129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ba9349ec773dc78f9119388627ec8ce13b1e944c5089cf1dfaa730c3747915. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZS7J2368071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5567e30b05fe221d586c21c2788bcf9801814134a415dc051934ff64e8438eae. 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/QZS7J2345239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97122e9303900e81ca7915b298a60d7d8b08f72bfa330b4f8671366535090de. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZQAY2421821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e7d1aa80dc6ef75e59712b220b8506aa9af32b38fa61996beb82d0684ce486. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZQAY2472457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec30b0ae3c16029190ef8aa47bfcc4c4945b45ef324489064b791dcc04cbc6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZQAY2454530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22168bc55036c612f845902909376d128a221580dd6cb3a0749a14f0334a4f19. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZQAY2480021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad21434309b896d5915b09675037724da815fc5af61cbbf1b51a81a08a6f15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CBEFB2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad21434309b896d5915b09675037724da815fc5af61cbbf1b51a81a08a6f15. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CBEFB2500054.