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 0x87a97e264601d902af7099ddb30d7ea73ae5bd1b3653422cb9320ace0c1a3c07. 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/e3153010-6d1c-4f4b-b8b7-38bfced76693.json and https://artists.proofprofile.net/proofs/artist/e3153010-6d1c-4f4b-b8b7-38bfced76693.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 0xffb719988b5de32f60f91510ce231bb525949961f7276ee59e2dc37dd95a6339. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/KRA382318801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832e71a2a6090e644f522e9a0c349a9eac994c312e048b77d61f70bad8a93bc4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA382318802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478970a1f01d0a81c102c3f425d3a9d5bcd8bf82328ca7940d0c17807c3ff4fa. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/KRA382318804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bb9a4b016cd9f0a4fbfdd61088662d6a3c25366d73b0fa35369fb40e76b241. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/KRA382318803.
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
A beautiful love only for me (Feat. Hannah Jang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ccf4f4e9722113d5e0b7a5780cd34059852389820c0dcf2724391f4a30ffe6. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/KRA382318805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1559ccd0cf0ee2a5af4d851ec1708deab2fc61adc344e1e4c20fde8bb8c4bfc4. 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/KRNAR2388153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf449fd69f541a7feddfab915e4167e220e05370fcc83fe27014b130caf5682. 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/KRB472200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77335d8a7a2d0187a57c35c9d00d80d691fc9248eb0e76cef1db505b3380ba01. 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/DEVF11900523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1175ef9b3f64a1d597f3f0353c32008a82a7471347e7081da3f30699771e1c49. 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/DEVF11900524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bda76e86b36f114178719ff8344949c3e4f2093d03621e12b16bd8da0d6aad. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-21T23:33:33Z), 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/QZARB1834981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7a3c99360472e45aaab41f4170a7423a614cab1ba922dafccdf736fe29c16a. 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/DEVF11900525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127e197cdcb9eff343821fd4aab06246086555ffdff4d52250a5fc0f1ae983b1. 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/QM42K1718734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa7f8e86554a65917cb721b1d97bdc3ed76511a8ba02a04cae4143c2f1e78ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEVF11900526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc595cc7210c37cd4af0ba6aa28fa8e5787be64238171a003fd4fd346f7048ce3. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:43:09Z), 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/QM24S1908936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e04c3d5e7c2b3483d449e6c620da2b5f92b2c75fb90ed665dbe98af8b84d81. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZAPG1813793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039789404044716dcb3b7fd8a1509d9d368f22ad7eaa0f11f42acd84009c9029. 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/QZDA81989406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8d418925f8f4ba3e74c4eb2eda2926a1dcf15968ba44fcc55d460a71418cc0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEVF11800387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd0dd423c3fd7ab08ad7d3be2c9e61afac76510e62b7f5857f712349c66c368. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZCE61838517.