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 0xb8400b915685de008b9376ed6661f342496479197f16aad224077eaffe0041ca. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfb97227-01a4-4066-971e-a39717d20d95.json and https://artists.proofprofile.net/proofs/artist/dfb97227-01a4-4066-971e-a39717d20d95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Cima Nights (feat. VannDa, Songha, Rxthy & YCN Rakhie)
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 0xf40ce070be1903d01200293abd6fb538a6e7fd8b15d99d4d5a2faa31816bc576. 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/QZFZ42106869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f6db2d44e153e40903ef0a8b2f03d534f2423653abd90a6973c9223a812b34. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZZOPM2118936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa9c97916cc56353890173d904930401d719e9b5aacf7b390a60291940688fb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZZOPM2119407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd52805a1801f59b1489a2e5d49f2f1ab10293325c10d22da7582917c4142045. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ZZOPM2220592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8b97c7dc194f3da5120f7b549066141f8ab64f46b8516b4cf24e43d998cfe8. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ8A2508292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0cc5b698dbcd76db3efece8d4713855c2e9f46ed164546aee34be17c0fbd05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ8A2508297.
វង្វេងដូចក្មេងខ្មែរ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba9db035ab972bacc5bfec138bd7f3f28bec937a9121cab209ff4cddd5cc711. 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/QZZ8A2508299.
ទឹកភ្នែកព្រះរស់
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ac7e4b232c13804c3740f42a1b2dccaa4ab60b01fc6e37a3c4c3ae0f78790. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ8A2508300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0071bb07813933ea9e5f5c8f83e4c38254bc9838731859a3ad9fd97bb606a4b. 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/QZZ8A2508301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029624af574a40286f34bf991ef169c6e45baa017c45a83c6c923d398101b732. 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/QZZ8A2508304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e776369d540cc3ec5c97b68601ecdb4113e0989c384a5a1b9a6a024f260f3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:37:04Z), 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/QZZ8A2508306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1106f8a07cd195ff5b6195c902fbd8d9e9967921e7d432b079b43b42c03277. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZZ8A2508308.