1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x90e3b9a4329bce7757b945d8e8eb6265dbc06d1e81e6f49e3dd6736e56f1e2dc. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd0513c6-4036-456e-94d0-8517d93eea3c.json and https://artists.proofprofile.net/proofs/artist/bd0513c6-4036-456e-94d0-8517d93eea3c.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 → block OTSBitcoinBlock must exist at that height 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 0x63e12e699ebe803ec306cb9dca1232fb71999b899070e7d6409d86070e4698b1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USEL19700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0fdfda9064a48463351aff487f114dbabe9584bcd0d7f2b94c789439912b02. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USEL19700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7974b2636818da75d6ed85aa5b6eb57641e52c39b43f00ad75425e8f63528af. 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/USEL19600229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294f3e264ba3308ba476d17295618d5113e084eda23fc91cefefcacce307d69. 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/USEL19500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ae042d42b8eeefccf70f2d10c7b058b64f0f75f8f11f8fad24cc9451dc8deb. 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/USEL19600223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9e0c0eaddd6d4f838654a764caf5006909ca0702d4f82fe31d0488e2fe3ce. 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/USEL11000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c9817a831610e59489090cb204f3caa752e4a0232738c06e4d8763e819dcad. 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/MXF061200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f8b128259076d2845a2d44e676651a25b33407a9775a9a1dccfa4770708a2f. 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/USNPD1100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fce589a8a145542e1ec924db06fd6de0649492951a8a75c82eccab139c27af. 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/MXF061200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf902bdd02897fd34cfb4e814a3a22ee41e7d0fe679c1dd7385c9a4d65b72171c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USEL10100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29b7a6e0d8b8fc3fe4ac4182e35886f5f2f590dc18d7abeacdb9ac14ff9eeb2. 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/USEL19000651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382b572b06a7d54d11c3800d12cfbddcc06ddac15e31febb7131003469ce6742. 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/USEL10600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3046e7e2cbd27e35e3ffced17c10b0126a12fab9388908ce90df80fba7aaac00. 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/PAA011200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b25b56c13b723388e25082b65602779c453eacedada7d0329bffc1585b5f461. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MX1041200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa675bbd193c370505901e4ffbd414e15fbde2f3a98720d80c6b0b1922c1d1910. 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/USEL11200048.
Serie 3X4 (Limi-T 21, Jailene, Ilegales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af7be2b31236eee6eb7cfc49f0a282d8e3376fc0bcaddc3bbd54e2abb713a39. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USEL19500027.