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 0x537e27272cfc4a6765c45f1cf1b8ec014a626f8628d4db2792d8848034dde32b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7434338d-04a4-44e4-a898-2c4e3dce87de.json and https://artists.proofprofile.net/proofs/artist/7434338d-04a4-44e4-a898-2c4e3dce87de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dil Vil Pyar Vyar (Original Motion Picture Soundtrack)
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 0xe625be83ef72eeadf70a10759cc80a1515e8887bfd831a08a06ba9a2b45507ac. 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/INH100251280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aa1607af1e4ebc11743bd6866dc9745f1afd7ab3b9eea3e976057b5fa3cd2d. 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/INH100251360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a89c1ddd29398c18ad2644663afa487efcb5790fb980fcbaa07130a4c982c2. 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/INH100155170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb920e453114b1a7d9185927ae0b9538e0e444be907652cdaf910c9f1396d38a. 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/INH100251220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9a75376c32c079389f0bb7fb6b377fb90c146ce90138291b276e54e4c35c25. 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/INH100251230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca672a7e82e1c76be6114a99047319cedb3c407e37cd66ab51b0b39bbfa12abb. 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/INH100251260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67808214a23a095de25c068f1aea150bd69a1c43e9771d64e4c8d528281b6a90. 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/INH100251270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f5b195286995dea8d15ea6b35617f49df958c33eecb12b8e87641cc5f840f7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INH100251290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1f468242620c36b8ff9a16c5eec01c0abf01f61e091e2201a115b8e0ca2aae. 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/INH100251300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec01340cdf479c2069b770b1649b680b11df4dee9b05c61c05cc143135ad88. 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/INH100251310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be6a0deb4dcabfaa49e030a04e737c4baa2e259a8e715d13d7dcdbb43fd9a1. 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/INH100251320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1ff7ba018bfc4a424540c0e73b5aac6fee596d4d0ed3d91ae715ee05e631f8. 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/INH100251330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3da9b4b9b2140affb6151e4755103ab8f4e3229f5316c65bc82b8af337bde5d. 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/INH100251340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235fa549b8a09535cac0df6964a98d1bfea7c88cf823e074a2e8ffafec5e6273. 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/INH100251350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147670f67fc81acccf5710e12d382ee4a6fdae64541ed16b3fd4231280b52222. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/INH100605444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71954ea6287c4a3c1b718ae0d4ec52c9d07370fc69668bf46ea656efa3a6b043. 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/INH100902089.