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 0xcbf57b90e8bee56b749b764f22302a60654eb2462026effeffba9b4df8999f25. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2a8c72b-1159-4d94-bab6-5f5b70c12165.json and https://artists.proofprofile.net/proofs/artist/b2a8c72b-1159-4d94-bab6-5f5b70c12165.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 0x0f13caca6c0f1f1c938d6baef60a63991c60eeb40ca21e3b4319906839710673. 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/TWA170490202.
說散就散 - "前任3: 再見前任" 電影主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8519f2a1550d9fb7dbaa2868e73f17bf8cc6c24c8c6e90752c4bd9b705ff78a8. 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/HKE671700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77ce731f579892d696ed78777e51ec20bb41df33091168ce30da757b1d88f56. 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/TWC150601008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59314c8768debcb92f43961342bf25cf41388ed393b17189631357899c54d00. 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/TWA531282103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb97d790b5650087b83b0801094100289b42d3e881335f5a6aa80946f2d3c4d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:27:00Z), 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/TWA530503505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129b1894d00bbbc8fb013d2c1b3f315780d9beb9c50d896fadd26a6e65fa9a2a. 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/TWA530410301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460c71b127a89368e5b1682fb2c934cb4466274c67a194c41627d9c35218b333. 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/TWEM30802010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cbe49245e33ad045df29e9d6b47983b77e9cd6f2eec9435fc0650aabb7fd44. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWA531200228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba73f40aa5555363389a9e066ceaeaa40e03ac3c80b6a3f62f00eeb1bad4875c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWEM31103002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea24718505d54fa917b56bfda4e9bcfed357e38c08c0f2d3e84ae8f7d601a2c. 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/TWA531327604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7f5dbe23e66be78ac11374832b06ac378e2e269d6331478e92d96e67a4c79d. 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/TWA539736607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7f18181e3dab6a74bfb0d24e3c1df9580c922ee2a54af76045f8a1a9aea830. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWA539736601.
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 0xa3f3231acea56175e9c2b78789368c1b2a2a9e543b7dc6e736484b41c5546af5. 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/TWA539610406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0443c60c58de621606bd2c466721bccf9490c0950dd93ff6c5c78a8b147d8f8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TWA539610401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d01a3a1dcab83e097a2f8b7f6872a7acc4d23d545acc80414cd59c9e6b9556. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/TWA539610402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20ccddd77274352f75349e12edd41962ee9bf3ca89c8d2857cb64ea205be049. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/TWA539610403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89e6373d2852b523e8b17a45e1094f442dc8dbe6a754eb4387255a55bf737a6. 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/TWA539610404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff1c72f9419b5f6af755471b61f577ed8714084b84a081c65e3101e5f1c155a. 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/TWA459335403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3bb01374a45758fad116a9769a1c0d2506690a9627e96d3ca08354465e4af1. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TWA459335405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53394cc042bf1d6716ef046b7763cedfd513df0057d364c07fa1ed209923d960. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TWA459335407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd253ca1bcfd91b9fc2b152bfa906e37246f9b02a9c0d0721040ed25a3570d37. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TWA459233007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4d02481e3e948a470def5be2eb03700d41571f7a297bd85aa2e2b2116ba6e3. 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/TWA178700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a63396d179e93f1230968e8145aacaaa3d4feadab2eec1b2c4459aca8434071. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWA178700502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffbc228483ae4e77075a956da4d1a3d982f87654516b8d71e35c23241fe357b. 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/TWA178700503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347f0f8655371809599016b5feb2dd7ab5021ecd748a531a4419c85d01952c58. 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/TWA178700506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb293998388c4c32760cde72c6cb407e26f1fedf278643093fb77cf0eb9c570. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/TWA178700505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c61e56e158f6586edd01411e873c39985a7969a72a7e0babbe3bfaee9d4113. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TWA178700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8498ad437d4fda843261ca68e59f960fa36ff4d98d1a62666d67339ef29dd4a2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TWA459338101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97a8da7d557f44d99f9885868149abc9b4d43b30236e12f05fc199dbf0c1648. 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/TWA459233004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aa7c9bd05a450f09c5da6942aa98fd9983d5870959c76f13a24acf660da5ab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWA459233009.
東方之珠V 有情人‧男人與女人的情話世界