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 0xa4c35cd635ac653619d6d9c2af7823c09462c5caf250f1e1072702f20b63a8f0. 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/921a5014-93ca-471b-b8d9-dcfe863d8913.json and https://artists.proofprofile.net/proofs/artist/921a5014-93ca-471b-b8d9-dcfe863d8913.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kepada Angin Dan Burung - Burung (Vol. 2)
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 0x1906d6ff67438c8b5b5edd1eeb5651290cbca4f7ed4a1f2854603562aa0529a0. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/IDA182233512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dc8491a494f6dcb6533176f11b849d9eadb83e3b5d6ab83060c1131315d595. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IDA468600220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a410640178325cc3ee5074512d3339f97b14e92e936b52d69028b490639473. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IDA182233764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3108b23860cf61662ecc57978834038d9c218b4489ad28923530d888b662d08. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDA182233765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0de7228201d8b7eef530b15ae9c867dd05a78556cf26a68863130400cc795a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IDA182233773.
Vol. 5 Siti Julaika (Dan Durakim Buruh Pabrik Gula)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce72b4e102cc76f49b4889df10c13d1644c7ae2f21ba966ea61592b3aee929d3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IDA182233958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90f47c79e38585713f51b66763d7f192a8ac35187fbb12c2d44f4cc619bd375. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IDA182233503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef53507d92720341af781b61cd528d27c5535f166cdb052bc72d3795fb968c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/IDA182233504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7abc3d5ed7099602ce0917913e3a4aaa9ae230c3e977578983be510b8e8042. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:57:32Z), 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/IDA182233505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84c9986b777b0a8c6d893882358cde805022294269341b4866f213b28d2ca18. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IDA182233506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c240c812ef79b6896e82ffe9e1d2faf99831a12541f8c974bc8a482359cbc1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDA182233753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d73ca63d4701c05c2027c5d2fc87b0b7c4e0e695a2a21b62e53f456df894acb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IDA182233761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876b6b1e15d8e2c5d42041332d78ebe62a254bc92e0d9a18c55460cdcd89d93d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDA182234023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c09e9d9028db1e61c9701f450082da2bf7d069248f62ddaad85a5ea5fb17f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IDA182234029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f5512db0f20b69b6d30c5a41f1a2b71a8556550f27fe46cbe8dce0fd4eb1d2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/IDA182234033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c7ea6e23a164b1b3b9406b31806bf6b4f263ef020e1b0e086f815364e131ff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IDA181205505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8da69846679e94f7b6b279301e78e2406aa0bc7fd91177fb40ef12abb63082b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/IDA181100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec1db986037eb795147249ff54680a53e096ef31a68585a5b0a7715c1eaec5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IDA182233750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d75bc019d549f701fa19bf7fdfc395fd2c89e9001e79485035fd655f75d4f0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IDA181205511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba44497eec91bf9f1b626cee73024a5cde9f0d6adb59df4b42274c445f0e9a5b. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/IDA181100229.