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 0x685ced3da30db49e6c785d08313900c0c950080544a0d66953fc6dca884f775f. 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/bab91f03-52db-4c2c-92c4-d1357abffbe4.json and https://artists.proofprofile.net/proofs/artist/bab91f03-52db-4c2c-92c4-d1357abffbe4.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 0xc59e10d8c36b38af2697d76c0f0054ec92464703086be359f33c84c707bd2e48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd5705f1b819bb368998a0e8d245dbcca9d50337406bca5b003b9dcd05c30b2. 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/QZZ972437154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bdaa43ea24208a0fba8b657d1ea038854720f8bb2f5a2da7dd5cb6883d9993. 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/SEBGA2000170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454320f73d93c3ea44d1100e3a37509d0e42f2d697bf3760408bd696333490e3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21df033e24b611f48ad5c8e03f566ca7ae13989380df89f6b1821a31617e90a4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4211c2e0f6deb2d0653faa9d620f687e33da63cdb6fab27607f3acdfb6845d61. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19cf233c7b3dbaddab1057a123abb7bd04f0eb937c1f7af4fb3731bb021b7f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b0012522ab6d4bb0450c51dc5298a7c0b0ff3d7b3c967abe03e75396470277. 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/SEBGA2000175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807045161259911e44d2aa3570ac654147d67963c5eb5677b8eb19c62f6a84fa. 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/SEBGA2000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fc115d791b0dbde654d0631326d7cca25ffa245e105eb14548957e4fcee0a5. 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/SEBGA2000177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727ecf237abbc313e3cbe884baf39450abe04598fc8fa28db4698e48d66273ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7557b9b9a6b33e6d54f3a655824cc79d28fa6dc207868fb74317cd6350475079. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00f5933ecca9a22050b0ae6f4788c0351658071c8c79e0059e38f11df9e63c. 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/SEBGA2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc97bcc7369926d95bd9c9b845d3a1ce4badf9d323c5d4dd16323fe3edb14bec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2000181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b64b255c2be0bb723de32b9f57281fe3ebcb4290b78814a83bde8564846323e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA1903246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171cf2f5da15147d1b61f36bc9961452c63ce147296be3e1da16f8494c64abda. 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/SEBGA1903247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8280c3af5b8d161dfbf1e85c116907f7ee2ae2fef4767bc7afcdaacdf5d281c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA1903248.