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 0x21f14c7129f365165bc0e60276d294d47da529a21aa4f86dedb6a76fec346779. 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/1356f30a-d5de-4cea-a311-df93614ba66a.json and https://artists.proofprofile.net/proofs/artist/1356f30a-d5de-4cea-a311-df93614ba66a.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 0xef08d4e29c22d5644a89cc9bf1c8cf476c37c174ea7b5faf652092767f100779. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZFZ42153909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b2f3e0613748b8f53d75846d2b7cf447e25fd58a80655d30ef4efdb0415b5b. 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/QZHN42241402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dba01b91f16f2965e82b66aae849757d2f90409b8266d56968d54ea81954b5. 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/TCAIA2453424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e96e66f4afc0aedae0a758c5cc3a5c2005dbf6ede808cdc3ac7ee32f50989de. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:12Z), 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/TCAHH2352384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc46b644b53c1be9558b324d269f3f8f423bf61655818e06be2b427c50edbc21. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:21Z), 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/TCAIA2453726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb43b4133e5562e0c937ac5e5fd7746db0f890a38d9232fdf1c3db7b332addd. 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/TCAHZ2439004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aa7924c242b485e5e533a3f21ea5f5180163f1f28a6cb321b38e1ab6d5871b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCAHD2320651.
DRAG: The Musical (The Studio Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c2cd55a2741f7511439bb4e2d45fce09853196e521002f70d3150f09af1b92. 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/USC4R2214042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb897236ba402b682569daaecb32925de807f15fea3295b960042ef7f88a3ae9d. 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/USC4R2214045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac97461ac36503a3c3fb513139038a0da0b843d2161b5ad0d09d25ddaed28b4. 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/USC4R2214047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f247cd6196a2b2fe256f0d28b36ee8091f05a63adecdde03db1648b8c15a02. 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/USC4R2214053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd85d2a8d89002ab9a4f832e618a7c5c90cac1b180b252670fb4d50e3221b09. 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/USC4R2214056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd890d802c194badd85ec8a7987dee36181a202001e9dd6f0ac64ff7615667675. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USC4R2214059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c09104f42f0390c65bd31dceeff3d195b6cf80f1bc78edc42d0d9017525b23. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USC4R2214062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c70ced7504255c82a89d1e9f0caba8c2b80e615c21e675c49730114a1eed7e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USC4R2214063.