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 0x270a687207f834ad46b5f65d178bc3d725db9ab468295b4b4985ad557ab791d6. 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/720d316b-54f0-42a9-9d56-7cf2623c6bf0.json and https://artists.proofprofile.net/proofs/artist/720d316b-54f0-42a9-9d56-7cf2623c6bf0.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 0xabbfc5947c9bad3ca4638a4cebbd1714e08aed62ccb600b26be5148eabbefe44. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA41940117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a68b375b08ea73e50bc1002a2d09243099efb38df77f71ac3a090f25384152e. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/QZDA41940119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9e8215989845b88ff23d731eb4701d8d867cc5b6f30beeb612ac3dd2852443. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZDA41940120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0ff21fb553a27a7497d0695b50d39f4b09d7a7ad50fb2f7c25ef544bb6747. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZDA41940121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6caa34f77cbdb6550cd24fe0fc43ad9ccf379026d737c7991cc3a7977e027b5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:23Z), 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/QZDA41940123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462b8cf32ccf7d7dfc631633ad9dee52f8736dbdf4cd32866284ea9ab381ba56. 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/QZDA41940124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e84308b1d28c1a5e98ccc8a139259275f381bd36e480dbd52587a9c24969e1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZDA41942347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaac97d06053cee09677367aaca8b98b43b80b0999902fdc7392865c038c3722. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA41942348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f781b446ad4f5ae8779edb8505140323863385ff2cc0c96b23693fd377c9464. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZDA41942349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51d3dd51377c57aac7e98fa0152f970e1169cf21e8424f4a2de116b5b9e3db. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZRP52140290.
Seandainya Kita Ini Pacaran (Jazz Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb7cada0aa5539c8b543bf8b9d0f3e21af123b7a1334c9dea206a150df187b5. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZWFP2420956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ca4fecbf36e088f179d4e807981c1eb9688ffb5e90461ff928b48c3c67de6c. 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/QZWFP2420957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fefa6ec46bcb21077ea73bc4bb6d08c49d66e5c5475167d993d6d9652595a44. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZWFP2420958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe75d14f1e6fcd4e634485a3b8152c71ca2002849b08a31b8299dea3cb59ee29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:10:19Z), 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/QZWFP2420959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672263a04dfccb297952ecafda440d3306e9c0d8de6a6e11124346c04aad77e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:31:22Z), 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/QZWFP2420960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2737fc6163477d87bde3ec9af85d9c645e035f5a365f04abe94d1950c914afe6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZWFP2420961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6274aa050bfc7a43f4bb6f68f8e57005185caeb728d91c33ba159f775d8316. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZWFP2420962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b01343320eb116826f1561e1353978bd68140c2a746523a6f636888874e21af. 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/QZWFP2420963.