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 0xcb29244567d14eb1e13cb391ef57ba6d50c85b6c19dcce9f6d72b6012641d945. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b11e700c-2cef-4735-b94c-713ed0478966.json and https://artists.proofprofile.net/proofs/artist/b11e700c-2cef-4735-b94c-713ed0478966.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 0xbce2ce6f5d3beeb81390a852b5110d15a800fe6d23cec5badbe549a35f5a88b0. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/US83Z2484608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755ba5e70ab86ef3f2f51601709749b8c9021c296bde75ff99c96bf2a93f32c9. 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/US83Z2461176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5d852b8302da798107a28ef3f60be796b71956daf695e7d146cf1525fd8c27. 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/US83Z2321023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573fcca0bcc5c97c86c73053b101774100e5e5b932fdc0123cc8cd1c144b345e. 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/DEH741913151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c68fec8ed9bb56ffe8c152455b65c9a3fa98199f20c895814ecb64a7cc865c. 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/US83Z2461249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ae9ca6c2abbee8d849463ce34fa5abbb8adfd5090a11a1534d40d23de9f71c. 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/US83Z2483498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d81a53758b666aa3f84d1cf76f3c974e74d2656645d93c1c3a0f705d79b308. 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/US83Z2492206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca58170e72b8d14e5bdbf0ece2273c38108d6b20b23062a019b0d9497a60465. 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/GBKQU2472034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce2ce6f5d3beeb81390a852b5110d15a800fe6d23cec5badbe549a35f5a88b0. 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/US83Z2484608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd27eaff1d05d6febe054ea2938aae8215bbe95abddb4a0f819adea3834e84c. 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/GBKQU2446284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755ba5e70ab86ef3f2f51601709749b8c9021c296bde75ff99c96bf2a93f32c9. 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/US83Z2461176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c68fec8ed9bb56ffe8c152455b65c9a3fa98199f20c895814ecb64a7cc865c. 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/US83Z2461249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5545ee13c7a6e91f54e16f16c918136b42038e45900089338b9771aef87c69cf. 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/US83Z2333425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5d852b8302da798107a28ef3f60be796b71956daf695e7d146cf1525fd8c27. 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/US83Z2321023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f77b066786f557046bb4cefd795aeb8e36f5a0779843efde7227367787956. 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/US83Z2241478.
Qele Lao - Sona Shahgeldyan - Cut Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8676ef14ec2b5f13965f5f6d9bccbc709b8a2a6188e1e8509430e01ac101cf. 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/US83Z2206686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5d852b8302da798107a28ef3f60be796b71956daf695e7d146cf1525fd8c27. 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/US83Z2321023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8676ef14ec2b5f13965f5f6d9bccbc709b8a2a6188e1e8509430e01ac101cf. 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/US83Z2206686.