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 0xf65cafa27754aa93604f84a45f3d37c76f49e87b64902f2073466adc1a79561f. 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/5a105381-a654-4f7f-b154-0b25b45b4c7f.json and https://artists.proofprofile.net/proofs/artist/5a105381-a654-4f7f-b154-0b25b45b4c7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seo Rak (Blade & Soul Original 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 0xdff46432d8279492438d9e49c78cd15c54324410b9a285c5c6af7a0963c3f9cb. 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/KRA601700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08e9619e457b90affe5263c11ff25150fb056f9c435157c8e340085b3d46270. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRA601700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f19232a65d296fdb65811950684addf261b12e14f5d931c8071f2c2978bd320. 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/KRA601700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b296788a13c7b7b1690c9cf5b75ca2750aa6c5c6a46852c4f4543e29b8a6ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRA601700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f844bd9f1a5b06cb6151e1a812a1048dcd0e7c1578ee1a836945ab0b344e49. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRA601700102.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85182247191a8e038d41b555bdaae7b4bc49f2e47f4c3d4da96bdae595620a99. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRA601700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa318c17233aaf22f2282d5fff411c10d4ad349f7209208a14c6913898e9744d1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KRA601700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9e6a198209157c5785c3b2a0aba61ee0248a85041b55f3dfb927e2ef1512df. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/KRA601700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391d4550653159863d824d9098a794da018049e1768489a352601833e7269af9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/KRA601700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8058f940d98d30827b0f32e108623f3f5abf3bb865fdb5bedc2a8b1dca3634d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/KRA601700140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5973a9bbaac5b68f67b1e8f725451a95953558c4005a9585782db634e4cc971f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRA601700141.
The Great Journey (Blade & Soul Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda441803ff63a08da378af48ae7acf5a18f6aa77e807719e63601218132f2d29. 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/KRA601600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a729d52f3b0ed223ed56036fd1147b5ec35e42d8c087727b000ae48d9c3505. 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/KRA601600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b179c300e4b0ac21300cd697c365b0e36a99fecabdf416c3a3428f0f01d194. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRA601600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaed7b1aa6d1afa3f5e762d85ee74c17f402d9ce02a78b32f51b7a8f53c41333. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/KRA601600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86946fc873961f0672584be5590d73838c70ea5a3828877ac725863f87181961. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRA601600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aac492c78da42c9ac12f6853190dfff6ec16631355acffc48b48d147af6415a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRA601600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d207d330cde41582e907cca9cb22d8fbff0041527295b1b0475b673fc6df373. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/KRA601600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b32675321613b88b05b0671d9454c172a8d220329644b05104464e863bf0a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/KRA601600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597cf2534a4f4b9cbb6457fe51fabd8b4a7e5803588c289a98b71b26ac5c0f1c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/KRA601600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918ff2b5897c39d1c1fc6acc67f51e982040a8fc3415c487768cae235f1c065d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/KRA601600110.