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 0x7ea6d82c76696d7bec8154b33ca4079929596166e7e6bc6481db657febd23f02. 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/10d51c8e-2df1-4b1f-8ae6-d426af28f7d6.json and https://artists.proofprofile.net/proofs/artist/10d51c8e-2df1-4b1f-8ae6-d426af28f7d6.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 0x6b749d6dcfdeeec4357cd8818e798bd0b255c563ac845e0c48d6eb2695eb0c88. 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/TWA450893502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b48fe36e3ce4b2dc213ebb32b8472c9d74bd52749dafd49c86114cf3e15cab. 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/TWA450893503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e8d06ea427bf12739f12cc16eb31011782a9ea601d28780812992820ed2361. 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/TWA458500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b574fc86875e231129f21ad1a37dfb90ee2380836da32848ccf839b83844e4e. 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/TWU712101633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4397f4dbf75b21f761a1ff1313d589ffd1bbcdb2ec5bf4e98fd5637eb53f2802. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TWA511300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d2d5e559057be4da2671a9eb0a3069a3d6e1033d4d794baf3ab4d2214431cf. 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/TWA511300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd7746b77dbcac8cdc1b54dd21b3a0e28634ddc3c52100d1c79f011e4e06427. 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/TWA511300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e28dd5a5f7489c962c0c801dd573251c251f56c66a4980aa87c0ed73bf3350. 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/TWA511300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14346a1245fd4af813493c0c4b2f99ce2f33ed839033de215b3032f213a0266e. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/TWA511300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbb83253903a49f91d5543ddec58c172fa4d87416a6f300031ba6ebaa4074a1. 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/TWA511300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb00ee786819b4c074ffcfe769cbaaf583f18e82b13cc75e8f723d3325fa916a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TWA511300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0ec29c4074665d9e17bcaa5f2c048856ed04b6d7dec462c9a950df18ab20c0. 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/TWA511300347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a98f4ab8352a2022ac58137ad7994ec2c49ac6aad1b167773ca2f48325bbeb. 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/TWA511300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd571a2193b241e6f2fde59241a3ad7d33959efaf4d6b2a18e2b65c2701963f28. 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/TWA511300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dfa9464fd73fee2bea8f1c3676e84639f3529b451379ebb81a95ebf0c22991. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TWA511300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8c589d855df48a5b436cd87a15fbb5118dcde97ad8d23d8d73c98e149f29e4. 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/TWA511300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c61c60ba26aea38ad98fc4659a650770d522a5878b49578a1a118fa52b7628d. 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/TWA511300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a26712e508a73cb87340e8ca651beaa28cd5daee64ded386998437ea022e17. 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/TWA511300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59725de33e2786204c06972d16fb8c9985592d9a9b58838669e13402a66baa1c. 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/TWA458000707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14346a1245fd4af813493c0c4b2f99ce2f33ed839033de215b3032f213a0266e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TWA511300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e8d06ea427bf12739f12cc16eb31011782a9ea601d28780812992820ed2361. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWA458500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908ddced522399777cefd5ff0b6a6fe9453339ae4b09ec452a8f1eea7cd79c4f. 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/TWA511302114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7a694be8747a50af1a7b34735e2c6d3ef6577c7fc563d483eecab55ded0cd1. 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/TWA511302113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe21ba55e0b97c95c521a098fc0b2d395ac731d44ca24e520f1ef698d1bc3dc6. 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/TWA511300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf382308be71bcecc791316c8de4f1950efc368b5dcd09abe5bf1e3daa66e3490. 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/TWA459300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766ea0ef52cfec948009b49c1ee0205f3873d3438c82ceddc96fd02cfdeab3b5. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:34Z), 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/TWA459300420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8844d75790416ea5f6189cecfeeaec710a94f040f9afeebdbb2115141c4f83b1. 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/TWA511300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288cb4c1de6a0f35c50e1a004ec2540c2834ca5d7798d8e1b875758f47e3aedb. 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/TW1750703901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecdd4be4960a74b2db716f628a9cc68dfbe1c625e1322ba2939808f75bb14e4. 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/TW1750703902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87306a4c21983ec6c7b7375997ab42394ea6bae5460b355127c062870954ce6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:58:31Z), 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/TW1750703903.
師恩深一生深 (大愛劇場《我愛美金》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501303bd356821c5241045808e4b9a28a5aa45e1dbcf3ce001f36385bee74aac. 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/TWA871100705.