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 0xc2a4a76831866684d4f990bea3731e8d560dba3453b960c575f103f5c5890922. 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/4710d2d2-e39b-4898-a1fc-8a2bce46d6c5.json and https://artists.proofprofile.net/proofs/artist/4710d2d2-e39b-4898-a1fc-8a2bce46d6c5.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 0x13433ea1f0c594d88650446d40a1a4c281cad060164bb94dc4b7fde102001b5b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TWUM71400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2298b758de38f937085f986844a1c3a08a0b24852aae4eddee1d7138b9192824. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TWUM71400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfc9e47b69a3a75be3c11fde1f785a38b7b5a592af7ec75fdc2caf2dd02b2e8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TWUM71400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795d1b074e9a050816fb022ce96e0351474c2941ff3a6b0da427f2dd617e8a3b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TWUM71600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb964cd56851dda0dfb1624a70d3fe0cb11c81266674da33c78be20706ee72c30. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TWUM71600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0754b3430b6f1633b1bc4facbb97ec749be24bdc25d591a2f7c98a38723edec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWUM71600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc3771509b72a82366354f1d20343e025fe2134011ccadf6954fb635c7beacb. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/TWUM71700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5565274155b7ab47aef8a51f4b73fa54ead9ac37f0b97dd6909fba65fb496ed. 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/TWER51812212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be1d838a1627017a010f05593611f915b9648b56999559ed700383d118a4191. 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/TWER51812210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad72a549eeb0920dee9305aa14693b4eeeabae5b0f5b3367ef9197318cd6382. 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/TWER51812211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5565274155b7ab47aef8a51f4b73fa54ead9ac37f0b97dd6909fba65fb496ed. 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/TWER51812212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1462981497e8a2e4085612d5249ecc99f994958e0e0ffcb73f82510e38954798. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWER51812213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc053ec223b7864f61d34a5ecfcc7d39f253eb25e197301796ac51ba33ded0eaa. 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/TWER51812214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaec9cbdcaafe6eb4429b11bff793abcd51f4a6a17d560c363c87ab58e2856e0. 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/TWER51812215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec7364663d9e2cb52f09d9c71a8ad2c272250cf756fb2b30c13de297a3e1e5. 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/TWER51812216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71bdcb07701889aeab7f0168e855440af13170f592b09bbd11219107fc0db40. 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/TWER51812217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ed6c5862ebd008082837daf7acc81418d87d63092a53a26a5b2c2cfad03f72. 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/TWER51812218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db06c436eb5c8776480886ac99d3ef4d408bea3b700d0343a491af7dbaa64d9. 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/TWER51812219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c70de089f55c9f46a3a2715ab969990dde938914e62d2edcad2d03712419fac. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:51Z), 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/TWA532300259.
百味小廚神 中元大餐 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923586921b275dd91383cebbe076be61fecf4b11cad5fe2cc2e23dd57f9ff7f8. 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/TWKX72300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f63b732e295daec6fb8105df7a3abe76ada2994da65763eb65e83db7b256a4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TWKX72300010.
牛郎失散織女 (影集《Q18量子預言》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34e76156855f832b59fbf851c004a9ba15f9664ea20f5efda4dd1b0b7519caf. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/TWA532400448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6306db50c8640d86bafc28bee615d56b8f169fcff7aea5d9950e3b6c0003abee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TWA532400445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476b0c53f866d783b06883627cc21fc0d02db8fe0ed417f5443a22d166892259. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TWKX72500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0d1b85cf3d477b1502577c1b2a017b3878b2944fac9b7c71ac46ed99f56e8d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TWKX82500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059e400f1f5fe5003a085b7a7184ceaf2342ed2c97b3fdc5f6c7b065c91b07c9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:27:12Z), 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/TWA750800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa43bce187b7c6fbd0a7df75495509d5a495a46761522a7a000452a7568359e. 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/TWAE32401232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd01b1df990f95fca727dda320842f831912e8aaba81db808f155112524723e. 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/TWUM71400018.