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 0x1afca08b0be5f0bdce80d1b2d48820d7b91ffd70c7d61ed56a47db48a80ec615. 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/83bb46a8-4364-4ac2-ac20-c0caba4d91aa.json and https://artists.proofprofile.net/proofs/artist/83bb46a8-4364-4ac2-ac20-c0caba4d91aa.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 0x5f6f15ce1096e28cc4df4d3786b6fd6ff8862e924f4374b0d3fe569db48b358b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:06:02Z), 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/USL4Q1863315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651372118541a9da101cc0b5f61c8483576e26eee9c94b2410f4d18144ef1b69. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USCGH1945991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc2132d1a84074b42c0e86434aa54fea3a314f03207205d56a3231c602c3df2. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QMRSZ2001392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5077082bbdb80d32e0cd65c20027390febb09ed6c16f68c28948452df80d3d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMRSZ2001394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60eeb4716b2e2a8d1615ab45e892a0e42d8021fde49eae619af42c0d88f3056. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:16:06Z), 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/USCGH2380330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30145e9f89e48b10b312a9475ec68b8794f2782cb8566733f8de63463a7a0985. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USCGH2380332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8610c473738df7ee0984f2de57f4b7311a5e6f9d18c5771c881fb692ee64c45. 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/USL4Q2234309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578a080c811d56d82372429ddbc34fa27d8a2aa469cad9d25d10ac58f1dad2b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QM4TX2517735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aaa6e45dab342f93024323bbdef35d7fcf5359297439dd72b22389b2ec8a8d. 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/QM4TX2517731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578a080c811d56d82372429ddbc34fa27d8a2aa469cad9d25d10ac58f1dad2b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:41Z), 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/QM4TX2517735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aaa6e45dab342f93024323bbdef35d7fcf5359297439dd72b22389b2ec8a8d. 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/QM4TX2517731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe212b21def5389b577409a362d7dc6bf4178c802f76ba28c0b9d77f51e06ba. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM4TX2517732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4c461666cd027c5adab55c04480804be5ec890d27138954db64feffb579215. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QM4TX2517738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe212b21def5389b577409a362d7dc6bf4178c802f76ba28c0b9d77f51e06ba. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:04Z), 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/QM4TX2517732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578a080c811d56d82372429ddbc34fa27d8a2aa469cad9d25d10ac58f1dad2b. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QM4TX2517735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aaa6e45dab342f93024323bbdef35d7fcf5359297439dd72b22389b2ec8a8d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4TX2517731.
This Is Life (Merry Christmas) [feat. Daniel Rodriguez]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba62c4930fc9a8c22ee5071552df32aac25bf016ce8f0712a403f9599267b82. 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/USDMG2142801.