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 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 0xda14674c6895ff959d3cebb98e3b1bcc834dc4ed8c0066304ab23ab28e6d49d1. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9527f99-929b-463b-bc59-b329d972e887.json and https://artists.proofprofile.net/proofs/artist/c9527f99-929b-463b-bc59-b329d972e887.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 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 0x49211dd55ebb30ed3cc0d8c973fa548b7549f35d9a6b29e0b5fc8c6b8851f366. 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/TWW672006010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c857587b16c7507d690c79e2d9ff553e0a5df31dfc7adce6f96f5eb6591b56d. 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/TWW672006002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000bf13f34ef2ae94d1d404960047953860bf02d2f783c54f274156937ea2d0e. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/TWW672006003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f14f9252657a56f010fbc7b08a801a77061425e61a203dbab23da0e1a9439d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TWW672006004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2736da9b64012033f3a9eb77c9250c6694888a15c4d3d1f1bdb04ca7618fb4d. 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/TWW672006005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce65d30548386d673f2af21a205b2f37c33e3f6c58880e4c2399d8cdeab98ff6. 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/TWW672006006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac40448e5ddc402c1f6bd2ad3beb14024f8c551dd2c89562f932a4231cb74b4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TWW672006008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c683b1a8b74affe7d241a42dc14f0e14c729d155b25b0ebce427191e465c8ba. 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/TWW672006009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a9bafe8c0a1fde5251dd9f154c7671e7aa637eef4afa4bfb33dcd66a424373. 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/TWW672006001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52177a1b7ceb889c0a8e2b471ffe24763e82adf74d081e6c06ca7da166b99354. 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/TWW672006011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa8b2430d6426322cc642cda906d3e1379d06d8c0c27f7496051e6b7e92e172. 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/TWW672207001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94ef792744f457b8ad7bef2f589ac874db992f937f5dcfe7f352558e9027910. 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/TWW672104001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49211dd55ebb30ed3cc0d8c973fa548b7549f35d9a6b29e0b5fc8c6b8851f366. 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/TWW672006010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7a2b698e080994b1214d5673cb4740846cf7cc5b99c228f7fa1c965a8d688d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWH772440001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb901d8c71779267e48416144d1c27523c2d0b8a66b2801d6cba054e489bcf359. 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/TWH772440002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb00b2527d9f48e3524978b9feaa74708d016ea4fb496ae7230989b1c149b97b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/TWH772440003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9b6246409e230da18fa1fed998ad9c48b2ed01fcf9dde834086e4b72458ddb. 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/TWH772440004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8d5181113588b3a81ffef58989894f05c1a2c787aca3d3fdf026b5ef7fec11. 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/TWH772440005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2060fd9d59ea98c5377d7b19d6a390a78bbd02e19cf953cdbfca42ae6c28ac9. 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/TWH772440006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835d9254d6a803f5c2706db5312fcf3983e7ca178b32af98f1ec2b884622eaa. 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/TWH772440007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd22ab2f49e270d54854493ffc2ed79e58606e80311eae76f4c3eb08891bc04a. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TWH772440008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd30ba6170503b5a2a77aa250146e0c867a6b68bb4ad6482e48c2c435c1942f. 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/TWH772440009.
愛在發酵 (Vidol原創微劇《愛不愛栗絲》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b7c1aa789accf3c2ba7ebc7ed9f20b4e0ae51c7ff8e3ab18c8748ef1f00da9. 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/TWCC32003024.