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 0x9d42e32c457bb60f876b322ec9d7313b962169c77cd3f9ccac1c9c84167227ff. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39f5d6d7-1acc-4b51-a1c2-1a4e02712938.json and https://artists.proofprofile.net/proofs/artist/39f5d6d7-1acc-4b51-a1c2-1a4e02712938.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Struggle 2 Success Reloaded (Chopped & Screwed)
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 0x41452b347c0d2d30828fa16aec05d2db8afbdda472e505f48479c26f39854b9f. 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/USQY51608024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95aeaa474ba0cbc4aa5e4d491ee01109f980d0110236c302695f638a1bd199. 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/USQY51608025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41768a2cdfe580aabc70699e3e52abaa4780856e23da48e62c396a2745b17a4f. 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/USQY51608026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ca1b31b363a53a14c7a667d4d754d2027f080905edc2257ef274f2ddcdeb9. 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/USQY51608027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a98080beae239f2bb7c0eadf6e1cce93d5e2e5ba439f7ce1aab6ee16e017d1. 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/USQY51608030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633ef1239726831745bbc01d4713af2f2af9de26fd378301d7a67606f510ebe. 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/USQY51608031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bda8c73d56281531987b6f3078b1c68869973a5791ad3f3b8323d00dc985fc. 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/USQY51608034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc434de350a82639079cc9fc3e7f06cd36df08ce883947bd42a9a2fd61e4721. 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/USQY51608036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71de7dd2bf6edaf91bd394774076c08cd1e94b33de59e1b7e17de230ddd61ac. 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/USQY51608041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7df9697d58c3931e08b7487e65b5d947189a037593d189603b93b6706025ba. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USQY51608035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773b5f9c0b5aec0855c5f7f7297f4fdfd2674afb378c5792373ac3501a0f891. 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/USXQS1720696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81fa41501007787daecf7260aefc2d4f094c9627b304360360e2cf11f171406. 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/USXQS1720701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e85d34ddcffc7fc3c6fed4199434fa0a6cd16d46d11e4126ff60f3ba3e921f9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USXQS1720699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde28d01c9c9f2d49cc6929e46d3025d9cdcb24cadb92fa126809492cb7afbe84. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAHY2461636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb18914342e2a136d6251f5a6eed3f9eb791f8179462eb54acd285c66ce3cc2. 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/CA5KR0012059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccb0462611cb25b2bd5e7df4fa1843f29de6b3886cca284e9b67ba102e5b756. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/QZTGW2100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244b1fbfdb71ebcfd62051115048e1d755d2a46d926c522c7d6754808567c7a4. 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/TCAEW2012043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56fed217b0ac2477041c0f0359a31637e38038385ee72b64db4742bfd5f4337. 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/TCAEW2012051.
Cuttin up (feat. Beat King & Chedda da Connect)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e54687bf12e2acd2e7b6042dc9037562691626a919b993482a406ea13f407e. 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/TCAIR2478464.